JOHNSTOWN, PA 15915 Weather Forecast & Current Conditions

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JOHNSTOWN, PA
Current Weather

3:54 PM EDT AUG 13, 2026
Overcast
73°F
Feels Like: 73°F
Dewpoint: 64°F
Rel. Hum.: 73%
Visibility: 10 miles
Wind: W at 5 mph
Pressure:
Last 72 hours

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JOHNSTOWN, PA 15915
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. Northwest winds 5 to 10 mph this evening, becoming light and variable.
FRIDAY
Mostly cloudy. Patchy fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southeast winds around 5 mph, becoming southwest in the afternoon. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows around 60. Northeast winds around 5 mph.
SATURDAY
Mostly sunny. Highs in the upper 70s. East winds around 5 mph.
SATURDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly cloudy with showers likely after midnight. Lows in the mid 60s. Southeast winds around 5 mph. Chance of rain 60 percent.
SUNDAY
Showers likely in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the upper 70s. Chance of rain 90 percent.
SUNDAY NIGHT
Mostly cloudy. Showers with thunderstorms likely in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Chance of rain 90 percent.
MONDAY
Mostly cloudy with a chance of showers and thunderstorms. Humid with highs in the mid 70s. Chance of rain 50 percent.
MONDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows around 60. Chance of rain 50 percent.
TUESDAY
Mostly sunny. Highs in the upper 70s.
TUESDAY NIGHT
Mostly clear. Lows around 60.
WEDNESDAY
Mostly sunny. Highs in the upper 70s.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 30 percent chance of showers. Lows in the lower 60s.

Visible Weather Satellite
JOHNSTOWN, PA 15915
Infrared Weather Satellite
JOHNSTOWN, PA 15915
NEXRAD Weather Radar
JOHNSTOWN, PA 15915

JOHNSTOWN, PA 3 hourly weather forecast

weather forecast created  7:00 AM CDT  8/13/2026
Thursday
13 AUG 2026
JOHNSTOWN, PA 15915 weather forecast Day 1, 12 hours 2 PM 74° 74° Mostly Cloudy 2%

0% Thunder
( 19% severe)
WNW   10 71% 64°
High 77° JOHNSTOWN, PA 15915 weather forecast Day 1, 15 hours 5 PM 76° 78° Mostly Cloudy WNW   9 64% 63°
Mostly Cloudy



JOHNSTOWN, PA 15915 weather forecast Day 1, 18 hours 8 PM 71° 71° Mostly Cloudy 9%

0% Thunder
( 3% severe)
NW   5 76% 63°
JOHNSTOWN, PA 15915 weather forecast Day 1, 21 hours 11 PM 66° 66° Mostly Cloudy   CALM 90% 63°
Friday
14 AUG 2026
JOHNSTOWN, PA 15915 weather forecast Day 2, 0 hours 2 AM 65° 65° Mostly Cloudy 7%

0% Thunder
( 1% severe)
  CALM 90% 62°
Low 63° JOHNSTOWN, PA 15915 weather forecast Day 2, 3 hours 5 AM 64° 66° Mostly Cloudy   CALM 90% 61°
High 76° JOHNSTOWN, PA 15915 weather forecast Day 2, 6 hours 8 AM 65° 65° Mostly Cloudy 25%
RAIN
.5–1 in
0% Thunder
( 7% severe)
SSE   2 90% 62°

Mostly Cloudy

Chance of Rain

JOHNSTOWN, PA 15915 weather forecast Day 2, 9 hours 11 AM 71° 71° Mostly Cloudy S   1 76% 63°
JOHNSTOWN, PA 15915 weather forecast Day 2, 12 hours 2 PM 73° 73° Mostly Cloudy 17%
RAIN
.1–.25 in
0% Thunder
( 22% severe)
SW   5 71% 63°
JOHNSTOWN, PA 15915 weather forecast Day 2, 15 hours 5 PM 74° 74° Mostly Cloudy WNW   5 69% 63°
JOHNSTOWN, PA 15915 weather forecast Day 2, 18 hours 8 PM 69° 69° Mostly Cloudy 12%
RAIN
<.01 in
0% Thunder
( 10% severe)
NNE   5 78% 62°
JOHNSTOWN, PA 15915 weather forecast Day 2, 21 hours 11 PM 66° 66° Mostly Cloudy ENE   5 87% 62°
Saturday
15 AUG 2026
JOHNSTOWN, PA 15915 weather forecast Day 3, 0 hours 2 AM 64° 65° Mostly Cloudy 4%

0% Thunder
( 1% severe)
E   5 90% 61°
Low 61° JOHNSTOWN, PA 15915 weather forecast Day 3, 3 hours 5 AM 62° 62° Partly Cloudy E   6 90% 59°
High 77° JOHNSTOWN, PA 15915 weather forecast Day 3, 6 hours 8 AM 62° 62° Partly Cloudy 5%

0% Thunder
( 3% severe)
E   6 90% 59°

Partly Cloudy



JOHNSTOWN, PA 15915 weather forecast Day 3, 9 hours 11 AM 70° 70° Partly Cloudy ESE   7 71% 60°
JOHNSTOWN, PA 15915 weather forecast Day 3, 15 hours 2 PM 74° 74° Partly Cloudy 6%

0% Thunder
( 9% severe)
ESE   5 62% 60°
JOHNSTOWN, PA 15915 weather forecast Day 3, 18 hours 5 PM 76° 78° Partly Cloudy SE   3 58% 60°
JOHNSTOWN, PA 15915 weather forecast Day 3, 21 hours 8 PM 70° 70° Partly Cloudy     ESE   6 73% 61°

JOHNSTOWN, PA extended weather forecast

Sunday
16 AUG 2026
Monday
17 AUG 2026
Tuesday
18 AUG 2026
Wednesday
19 AUG 2026
Thursday
20 AUG 2026
Low 66° Low 67° Low 59° Low 60° Low 62°
High 83° High 76° High 78° High 78° High 77°
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
Overcast
74% Rain
Overcast
60% Rain
Partly Cloudy
25% Rain
Partly Cloudy
39% Rain
Overcast
58% Rain
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