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Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Horsham, PA

82°F
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Horsham

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Horsham, PA Weather
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3 AM

80°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index83°

WindW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

4 AM

80°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index83°

WindW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

80°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index83°

WindWNW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity77%

Indoor Humidity77% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

79°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™85°

Heat Index83°

WindWNW 5 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts6 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

81°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™86°

Heat Index86°

WindW 5 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts6 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

84°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™87°

Heat Index88°

WindW 6 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts7 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

87°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™90°

Heat Index92°

WindWNW 6 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts7 mph

Humidity59%

Indoor Humidity59% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

90°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™94°

Heat Index97°

WindWNW 7 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts8 mph

Humidity55%

Indoor Humidity55% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

93°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™97°

Heat Index101°

WindWNW 7 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts9 mph

Humidity51%

Indoor Humidity51% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

96°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™99°

Heat Index104°

WindWNW 8 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts9 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

98°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 1%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™100°

Heat Index106°

WindWNW 8 mph

Air QualityPoor

Max UV Index10.8 (Extreme)

Wind Gusts10 mph

Humidity40%

Indoor Humidity40% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

99°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™100°

Heat Index106°

WindWNW 9 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts10 mph

Humidity38%

Indoor Humidity38% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

100°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™101°

Heat Index106°

WindW 9 mph

Air QualityPoor

Max UV Index6.4 (High)

Wind Gusts13 mph

Humidity36%

Indoor Humidity36% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

101°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 6%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™101°

Heat Index107°

WindW 9 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts14 mph

Humidity34%

Indoor Humidity34% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

100°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 5%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™100°

Heat Index105°

WindW 9 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts16 mph

Humidity35%

Indoor Humidity35% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

97°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 5%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™98°

Heat Index102°

WindW 9 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts13 mph

Humidity38%

Indoor Humidity38% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

94°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 8%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™95°

Heat Index99°

WindW 8 mph

Air QualityPoor

Max UV Index1.0 (Low)

Wind Gusts9 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

91°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 43%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

RealFeel Shade™96°

Heat Index98°

WindWSW 7 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts8 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

88°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 47%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index101°

WindWSW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity70%

Indoor Humidity70% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover27%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

85°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index90°

WindWSW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

11 PM

87°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 24%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:45 PM Monday - 12:00 AM Saturday

Heat Index94°

WindWSW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Horsham

AccuWeather's hourly forecast for Horsham provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 80° with a RealFeel® of 83°, mostly clear with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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