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

JOHNSTOWN, PA
Current Weather
12:54 AM EDT MAY 20, 2026
Clear
72°F
Feels Like: 72°F
Dewpoint: 63°F
Rel. Hum.: 73%
Visibility: 10 miles
Wind: WSW at 12 mph
Pressure: 30.13 inches
Last 72 hours

Local Area Snow Depth

Pennsylvania Current Weather

Pennsylvania MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  15915 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

JOHNSTOWN, PA 15915
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Partly cloudy. Lows in the mid 60s. Southwest winds 5 to 10 mph with gusts up to 25 mph.
WEDNESDAY
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Temperature falling into the upper 60s in the afternoon. West winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.
WEDNESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Much cooler. Less humid with lows in the upper 40s. North winds 5 to 10 mph. Chance of rain 50 percent.
THURSDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Cooler with highs in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.
THURSDAY NIGHT
Mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph. Gusts up to 25 mph after midnight.
FRIDAY
Mostly cloudy. A chance of showers in the morning, then showers in the afternoon. Highs in the upper 50s. Chance of rain 90 percent.
FRIDAY NIGHT
Showers in the evening, then rain after midnight. Lows in the upper 40s. Chance of rain near 100 percent.
SATURDAY
Rain. A chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain near 100 percent.
SATURDAY NIGHT
Rain with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 90 percent.
SUNDAY
Showers likely. A chance of thunderstorms in the afternoon. Warmer with highs around 70. Chance of rain 70 percent.
SUNDAY NIGHT
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 70 percent.
MEMORIAL DAY
Mostly cloudy with a 50 percent chance of showers. Highs in the mid 70s.
MONDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s.

  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 PM CDT  5/19/2026
Wednesday
20 MAY 2026		 JOHNSTOWN, PA 15915 weather forecast Day 1, 0 hours 2 AM 69° 69° Mostly Cloudy 5%

 0% Thunder
( 9% severe)		 W   10 73% 60°
Low 66° JOHNSTOWN, PA 15915 weather forecast Day 1, 3 hours 5 AM 67° 67° Partly Cloudy SW   9 78% 60°
High 75° JOHNSTOWN, PA 15915 weather forecast Day 1, 6 hours 8 AM 69° 69° Mostly Cloudy 70%
RAIN
1–2 in		 0% Thunder
( 28% severe)		 W   12 76% 61°

Mostly Cloudy

Rain Likely

 JOHNSTOWN, PA 15915 weather forecast Day 1, 9 hours 11 AM 73° 73° Mostly Cloudy W   12 68% 62°
JOHNSTOWN, PA 15915 weather forecast Day 1, 12 hours 2 PM 71° 71° Mostly Cloudy 69%
RAIN
***		 0% Thunder
( 46% severe)		 W   12 76% 63°
JOHNSTOWN, PA 15915 weather forecast Day 1, 15 hours 5 PM 67° 67° Mostly Cloudy NNW   10 75% 59°
JOHNSTOWN, PA 15915 weather forecast Day 1, 18 hours 8 PM 62° 61° Mostly Cloudy 47%
RAIN
.01–.1 in		 0% Thunder
( 6% severe)		 NNW   9 75% 54°
JOHNSTOWN, PA 15915 weather forecast Day 1, 21 hours 11 PM 57° 55° Mostly Cloudy N   8 77% 50°
Thursday
21 MAY 2026		 JOHNSTOWN, PA 15915 weather forecast Day 2, 0 hours 2 AM 53° 51° Mostly Cloudy 57%
RAIN
***		 0% Thunder
( 4% severe)		 N   6 77% 46°
Low 48° JOHNSTOWN, PA 15915 weather forecast Day 2, 3 hours 5 AM 52° 50° Mostly Cloudy NE   7 77% 45°
High 59° JOHNSTOWN, PA 15915 weather forecast Day 2, 6 hours 8 AM 50° 47° Mostly Cloudy 40%
RAIN
.01–.1 in		 0% Thunder
( 2% severe)		 ENE   8 80% 44°

Mostly Cloudy

Chance of Rain

 JOHNSTOWN, PA 15915 weather forecast Day 2, 9 hours 11 AM 52° 49° Mostly Cloudy ENE   8 71% 43°
JOHNSTOWN, PA 15915 weather forecast Day 2, 12 hours 2 PM 55° 52° Mostly Cloudy 11%
RAIN
<.01 in		 0% Thunder
( 5% severe)		 E   9 61% 42°
JOHNSTOWN, PA 15915 weather forecast Day 2, 15 hours 5 PM 58° 56° Partly Cloudy E   9 53% 41°
JOHNSTOWN, PA 15915 weather forecast Day 2, 18 hours 8 PM 56° 54° Partly Cloudy 6%

 0% Thunder
( 2% severe)		 ESE   9 59% 42°
JOHNSTOWN, PA 15915 weather forecast Day 2, 21 hours 11 PM 52° 49° Mostly Cloudy ESE   9 69% 42°

JOHNSTOWN, PA extended weather forecast
BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE
Low 49° Low 45° Low 46° Low 47° Low 54°
High 57° High 56° High 59° High 66° High 72°
JOHNSTOWN, PA 15915 weather forecast Day 3 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
Overcast
75% Rain		 Overcast
87% Rain		 Overcast
88% Rain		 Overcast
75% Rain		 Overcast
78% Rain
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