JOHNSTOWN, PA 15915 Weather Forecast & Current Conditions

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JOHNSTOWN, PA
Current Weather

11:54 AM EDT MAY 15, 2026
Broken Clouds
54°F
Feels Like: 52°F
Dewpoint: 43°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: WNW at 8 mph, gusts to 18
Pressure: 30.04 inches
Last 72 hours

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JOHNSTOWN, PA 15915
Weather Forecast

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Snow Depth pages
TODAY
Mostly cloudy this morning, then becoming partly sunny. Not as cool with highs in the lower 60s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
TONIGHT
Mostly cloudy in the evening, then clearing. Lows in the upper 40s. West winds 5 to 10 mph with gusts up to 20 mph, becoming south after midnight.
SATURDAY
Sunny in the morning, then partly sunny with a chance of showers in the afternoon. Much warmer with highs in the upper 70s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of rain 40 percent.
SATURDAY NIGHT
Mostly cloudy. Showers likely, mainly in the evening. Not as cool with lows in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent.
SUNDAY
Partly sunny with a chance of showers. Highs in the upper 70s. West winds 5 to 10 mph. Chance of rain 50 percent.
SUNDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the lower 60s. Chance of rain 30 percent.
MONDAY
Sunny, hot with highs in the upper 80s.
MONDAY NIGHT
Mostly clear. Lows in the mid 60s.
TUESDAY
Mostly sunny. Hot with highs in the upper 80s.
TUESDAY NIGHT
Partly cloudy. Lows in the mid 60s.
WEDNESDAY
Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 70 percent.
WEDNESDAY NIGHT
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Cooler with lows in the mid 50s. Chance of rain 70 percent.
THURSDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.

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 PM CDT  5/14/2026
Friday
15 MAY 2026
JOHNSTOWN, PA 15915 weather forecast Day 1, 0 hours 2 AM 44° 38° Mostly Cloudy 4%

0% Thunder
( 2% severe)
NW   12 79% 38°
Low 42° JOHNSTOWN, PA 15915 weather forecast Day 1, 3 hours 5 AM 43° 37° Mostly Cloudy NW   12 82% 38°
High 62° JOHNSTOWN, PA 15915 weather forecast Day 1, 6 hours 8 AM 45° 39° Partly Cloudy 0%

0% Thunder
( 1% severe)
NW   12 76% 38°

Partly Cloudy



JOHNSTOWN, PA 15915 weather forecast Day 1, 9 hours 11 AM 51° 47° Partly Cloudy NW   10 63% 39°
JOHNSTOWN, PA 15915 weather forecast Day 1, 12 hours 2 PM 59° 57° Partly Cloudy 1%

0% Thunder
( 1% severe)
WNW   12 47% 39°
JOHNSTOWN, PA 15915 weather forecast Day 1, 15 hours 5 PM 62° 61° Mostly Cloudy WNW   10 43% 39°
JOHNSTOWN, PA 15915 weather forecast Day 1, 18 hours 8 PM 57° 56° Mostly Cloudy 1%

0% Thunder
( 1% severe)
WNW   6 51% 39°
JOHNSTOWN, PA 15915 weather forecast Day 1, 21 hours 11 PM 49° 47° Partly Cloudy S   5 66% 38°
Saturday
16 MAY 2026
JOHNSTOWN, PA 15915 weather forecast Day 2, 0 hours 2 AM 46° 43° Clear 2%

0% Thunder
( 1% severe)
S   6 68% 36°
Low 46° JOHNSTOWN, PA 15915 weather forecast Day 2, 3 hours 5 AM 46° 42° Clear S   7 65% 35°
High 76° JOHNSTOWN, PA 15915 weather forecast Day 2, 6 hours 8 AM 53° 51° Clear 0%

0% Thunder
( 1% severe)
SSW   7 57% 38°

Increasing Clouds

Chance of Rain

JOHNSTOWN, PA 15915 weather forecast Day 2, 9 hours 11 AM 67° 67° Partly Cloudy SW   9 42% 43°
JOHNSTOWN, PA 15915 weather forecast Day 2, 12 hours 2 PM 73° 73° Partly Cloudy 22%
RAIN
.1–.25 in
0% Thunder
( 17% severe)
SW   12 40% 47°
JOHNSTOWN, PA 15915 weather forecast Day 2, 15 hours 5 PM 74° 74° Mostly Cloudy WSW   13 43% 50°
JOHNSTOWN, PA 15915 weather forecast Day 2, 18 hours 8 PM 68° 68° Mostly Cloudy 34%
RAIN
.1–.25 in
0% Thunder
( 18% severe)
SW   12 59% 53°
JOHNSTOWN, PA 15915 weather forecast Day 2, 21 hours 11 PM 62° 61° Mostly Cloudy WSW   8 78% 55°

JOHNSTOWN, PA extended weather forecast

Sunday
17 MAY 2026
Monday
18 MAY 2026
Tuesday
19 MAY 2026
Wednesday
20 MAY 2026
Thursday
21 MAY 2026
Low 59° Low 62° Low 62° Low 63° Low 51°
High 72° High 82° High 83° High 73° High 63°
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
70% Rain
Partly Cloudy
45% Rain
Partly Cloudy
52% Rain
Overcast
77% Rain
Overcast
46% Rain
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