JOHNSTOWN, PA 15915 Weather Forecast & Current Conditions
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  15915 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

JOHNSTOWN, PA
Current Weather
2:54 PM EDT AUG 4, 2026
Broken Clouds
75°F
Feels Like: 75°F
Dewpoint: 63°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: Variable at 3 mph
Pressure: 30.15 inches
Last 72 hours

Local Area Snow Depth

Pennsylvania Current Weather

Pennsylvania MOS Forecast Weather


Regional Weather Maps

(Automated weather data from NWS/FAA)
  15915 WEATHER FORECAST
10-Day model forecast maps
2026 Hurricanes

JOHNSTOWN, PA 15915
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Sunny. Highs around 80. Southeast winds around 5 mph.
TONIGHT
Partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph.
WEDNESDAY
Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with highs around 80. Southeast winds around 5 mph. Chance of rain 40 percent.
WEDNESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Locally heavy rainfall possible in the evening. Humid with lows in the mid 60s. South winds around 5 mph. Chance of rain 40 percent.
THURSDAY
Mostly cloudy. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with highs around 80. Southwest winds 5 to 10 mph. Chance of rain 80 percent.
THURSDAY NIGHT
Mostly cloudy. Showers with a chance of thunderstorms in the evening. Locally heavy rainfall possible in the evening. Humid with lows in the upper 60s. Chance of rain 80 percent.
FRIDAY
Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with highs around 80. Chance of rain 90 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of thunderstorms. Showers, mainly in the evening. Humid with lows in the mid 60s. Chance of rain 90 percent.
SATURDAY
Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the upper 70s. Chance of rain 70 percent.
SATURDAY NIGHT
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the mid 60s. Chance of rain 70 percent.
SUNDAY
Mostly sunny. Humid with highs in the upper 70s.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Humid with lows in the mid 60s. Chance of rain 40 percent.
MONDAY
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Chance of rain 50 percent.

  15915 WEATHER SATELLITE LOOPS
Visible Weather Satellite
JOHNSTOWN, PA 15915
Infrared Weather Satellite
JOHNSTOWN, PA 15915
  15915 WEATHER RADAR LOOP
NEXRAD Weather Radar
JOHNSTOWN, PA 15915
 MOS COMPUTER WEATHER FORECAST

JOHNSTOWN, PA 3 hourly weather forecast
weather forecast created  7:00 AM CDT  8/ 4/2026
Tuesday
4 AUG 2026		 JOHNSTOWN, PA 15915 weather forecast Day 1, 12 hours 2 PM 77° 79° Partly Cloudy 0%

 0% Thunder
( 3% severe)		 SSE   5 54% 59°
High 80° JOHNSTOWN, PA 15915 weather forecast Day 1, 15 hours 5 PM 79° 80° Partly Cloudy SE   7 50% 59°
Partly Cloudy



 JOHNSTOWN, PA 15915 weather forecast Day 1, 18 hours 8 PM 72° 72° Partly Cloudy 0%

 0% Thunder
( 2% severe)		 ESE   9 66% 60°
JOHNSTOWN, PA 15915 weather forecast Day 1, 21 hours 11 PM 67° 67° Partly Cloudy SE   8 78% 60°
Wednesday
5 AUG 2026		 JOHNSTOWN, PA 15915 weather forecast Day 2, 0 hours 2 AM 65° 65° Partly Cloudy 9%

 0% Thunder
( 3% severe)		 SSE   7 87% 61°
Low 64° JOHNSTOWN, PA 15915 weather forecast Day 2, 3 hours 5 AM 65° 65° Mostly Cloudy S   7 90% 62°
High 78° JOHNSTOWN, PA 15915 weather forecast Day 2, 6 hours 8 AM 67° 67° Mostly Cloudy 15%
RAIN
.25–.5 in		 0% Thunder
( 16% severe)		 SSE   6 90% 64°

Mostly Cloudy

Chance of Rain

 JOHNSTOWN, PA 15915 weather forecast Day 2, 9 hours 11 AM 73° 73° Mostly Cloudy SSE   6 79% 66°
JOHNSTOWN, PA 15915 weather forecast Day 2, 12 hours 2 PM 76° 78° Partly Cloudy 44%
RAIN
.5–1 in		 0% Thunder
( 42% severe)		 SSE   7 71% 66°
JOHNSTOWN, PA 15915 weather forecast Day 2, 15 hours 5 PM 76° 77° Partly Cloudy SSE   7 74% 67°
JOHNSTOWN, PA 15915 weather forecast Day 2, 18 hours 8 PM 72° 72° Mostly Cloudy 16%
RAIN
.01–.1 in		 0% Thunder
( 29% severe)		 SSE   7 87% 68°
JOHNSTOWN, PA 15915 weather forecast Day 2, 21 hours 11 PM 69° 69° Partly Cloudy SSE   6 97% 68°
Thursday
6 AUG 2026		 JOHNSTOWN, PA 15915 weather forecast Day 3, 0 hours 2 AM 68° 68° Partly Cloudy 4%

 0% Thunder
( 14% severe)		 S   6 100% 68°
Low 66° JOHNSTOWN, PA 15915 weather forecast Day 3, 3 hours 5 AM 67° 67° Partly Cloudy S   6 100% 67°
High 80° JOHNSTOWN, PA 15915 weather forecast Day 3, 6 hours 8 AM 68° 68° Partly Cloudy 46%
RAIN
***		 0% Thunder
( 18% severe)		 SSW   6 97% 67°

Mostly Cloudy

Rain Likely

 JOHNSTOWN, PA 15915 weather forecast Day 3, 9 hours 11 AM 75° 75° Mostly Cloudy WSW   7 84% 70°
JOHNSTOWN, PA 15915 weather forecast Day 3, 15 hours 2 PM 77° 79° Mostly Cloudy 75%
RAIN
***		 0% Thunder
( 42% severe)		 WSW   8 74% 68°
JOHNSTOWN, PA 15915 weather forecast Day 3, 18 hours 5 PM 77° 79° Partly Cloudy W   8 74% 68°
JOHNSTOWN, PA 15915 weather forecast Day 3, 21 hours 8 PM 73° 73° Mostly Cloudy     WSW   6 84% 68°

JOHNSTOWN, PA extended weather forecast
Friday
7 AUG 2026		 Saturday
8 AUG 2026		 Sunday
9 AUG 2026		 Monday
10 AUG 2026		 Tuesday
11 AUG 2026
Low 67° Low 66° Low 65° Low 67° Low 67°
High 82° High 78° High 84° High 84° High 80°
JOHNSTOWN, PA 15915 weather forecast Day 4 JOHNSTOWN, PA 15915 weather forecast Day 5 JOHNSTOWN, PA 15915 weather forecast Day 6 JOHNSTOWN, PA 15915 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
73% Rain		 Overcast
74% Rain		 Partly Cloudy
48% Rain		 Mostly Cloudy
44% Rain		 Mostly Cloudy
65% Rain
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