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Johnstown, PA

78°F
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Johnstown

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78°
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Johnstown, PA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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8 AM

76°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 20%
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Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™77°

WindWNW 6 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts7 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling33300 ft

9 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.
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rain drop 20%
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Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™80°

Heat Index80°

WindWNW 7 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts8 mph

Humidity71%

Indoor Humidity71% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

82°
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 20%
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Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™85°

Heat Index86°

WindWNW 7 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts10 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

86°
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 20%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™89°

Heat Index92°

WindWNW 8 mph

Air QualityFair

Max UV Index7.4 (High)

Wind Gusts13 mph

Humidity60%

Indoor Humidity60% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

91°
RealFeel® 101°
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 20%
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Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindWNW 8 mph

Air QualityFair

Max UV Index9.7 (Very High)

Wind Gusts15 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover13%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

93°
RealFeel® 104°
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 20%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™94°

Heat Index99°

WindWNW 9 mph

Air QualityFair

Max UV Index10.7 (Extreme)

Wind Gusts16 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover20%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

94°
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 19%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index99°

WindW 9 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts18 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

96°
RealFeel® 102°
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 19%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™96°

Heat Index100°

WindW 9 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts18 mph

Humidity40%

Indoor Humidity40% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

92°
RealFeel® 107°
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 24%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™101°

Heat Index108°

WindW 9 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts18 mph

Humidity66%

Indoor Humidity66% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

89°
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 43%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™97°

Heat Index103°

WindW 9 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts18 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

87°
RealFeel® 94°
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
Partly sunny
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™91°

Heat Index94°

WindWSW 8 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts13 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

86°
RealFeel® 94°
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 51%
Chevron down
Mostly cloudy w/ t-storms
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday

RealFeel Shade™94°

Heat Index99°

WindWSW 8 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts16 mph

Humidity80%

Indoor Humidity80% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

8 PM

83°
RealFeel® 89°
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 sunny w/ t-storms

RealFeel Shade™89°

Heat Index92°

WindSW 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts14 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover45%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

9 PM

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 47%
Chevron down
Partly cloudy

Heat Index84°

WindSW 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity73%

Indoor Humidity73% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

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 40%
Chevron down
Partly cloudy

Heat Index83°

WindE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

78°
RealFeel® 82°
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 34%
Chevron down
Partly cloudy

WindENE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity79%

Indoor Humidity79% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Johnstown

AccuWeather's hourly forecast for Johnstown provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 76° with a RealFeel® of 81°, mostly sunny with a 20% 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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