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Johnstown, PA

95°F
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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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 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

97°
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 40%
Chevron down
Mostly cloudy w/ showers
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™97°

Heat Index103°

WindW 9 mph

Air QualityPoor

Max UV Index7.0 (High)

Wind Gusts16 mph

Humidity41%

Indoor Humidity41% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover50%

Visibility10 mi

Cloud Ceiling10000 ft

2 PM

98°
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 37%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™101°

Heat Index106°

WindW 9 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts18 mph

Humidity43%

Indoor Humidity43% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

99°
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 34%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™101°

Heat Index106°

WindW 9 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts20 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

98°
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 37%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™99°

Heat Index104°

WindW 9 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts21 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

96°
RealFeel® 99°
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 sunny
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™96°

Heat Index100°

WindW 9 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts21 mph

Humidity40%

Indoor Humidity40% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

91°
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 51%
Chevron down
Partly sunny w/ t-storms
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™99°

Heat Index109°

WindW 9 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity69%

Indoor Humidity69% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Rain0.05 in

Visibility5 mi

Cloud Ceiling30000 ft

7 PM

90°
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
Mostly sunny
alerts

Extreme Heat Warning

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

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™93°

Heat Index96°

WindW 8 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts12 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

87°
RealFeel® 92°
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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday
alerts

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

RealFeel Shade™92°

Heat Index94°

WindNW 7 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts8 mph

Humidity60%

Indoor Humidity60% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

85°
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 47%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday
alerts

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

Heat Index93°

WindNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

83°
RealFeel® 86°
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
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
alerts

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

Heat Index89°

WindN 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

11 PM

82°
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 40%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

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

Heat Advisory

8:00 PM Friday - 8:00 PM Saturday
alerts

Air Quality Alert

3:30 PM Thursday - 12:00 AM Saturday

Heat Index85°

WindNE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover28%

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 97° with a RealFeel® of 104°, mostly cloudy w/ showers with a 40% 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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Weather Near Johnstown:

  • Harrisburg, PA
  • Lancaster, PA
  • York, PA
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