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 AUG 20, 2026
Few Clouds 66°F
Feels Like:	66°F
Dewpoint:	63°F
Rel. Hum.:	90%
Visibility:	10 miles
Wind:	SW at 6 mph
Pressure:	30.06 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 2026 Hurricanes	JOHNSTOWN, PA 15915 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Southwest winds around 5 mph. Chance of rain 50 percent.

THURSDAY
A chance of thunderstorms. Showers. Highs in the lower 70s. East winds around 5 mph, becoming north in the afternoon. Chance of rain 90 percent.

THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Northeast winds around 5 mph.

FRIDAY
Mostly sunny. Patchy fog in the morning. A chance of showers in the afternoon. Highs in the mid 70s. East winds around 5 mph. Chance of rain 40 percent.

FRIDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows around 60. Southeast winds around 5 mph. Chance of rain 40 percent.

SATURDAY
Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 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. Lows in the upper 50s. Chance of rain 70 percent.

SUNDAY
Partly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 40 percent.

SUNDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the mid 50s. Chance of rain 40 percent.

MONDAY
Mostly sunny. Highs in the lower 70s.

MONDAY NIGHT
Partly cloudy. Lows in the mid 50s.

TUESDAY
Mostly sunny. Highs in the mid 70s.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. 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 8/19/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
20 AUG 2026

2 AM

65°

65°

Mostly Cloudy

78%
RAIN
***

0% Thunder
( 23% severe)

CALM

93%

63°

Low 63°

5 AM

64°

65°

Mostly Cloudy

SSE 3

97%

63°

High 70°

8 AM

64°

65°

Mostly Cloudy

87%
RAIN
***

0% Thunder
( 24% severe)

ESE 5

97%

63°

Mostly Cloudy

Rain Likely

11 AM

66°

66°

Mostly Cloudy

SE 5

93%

64°

2 PM

67°

67°

Mostly Cloudy

59%
RAIN
***

0% Thunder
( 22% severe)

SSE 6

93%

65°

5 PM

68°

68°

Mostly Cloudy

NNE 6

84%

63°

8 PM

65°

65°

Mostly Cloudy

4%

0% Thunder
( 2% severe)

NE 6

87%

61°

11 PM

62°

62°

Partly Cloudy

E 5

97%

61°

Friday
21 AUG 2026

2 AM

61°

61°

Mostly Cloudy

3%

0% Thunder
( 1% severe)

E 5

97%

60°

Low 58°

5 AM

60°

60°

Mostly Cloudy

E 5

96%

59°

High 73°

8 AM

60°

60°

Partly Cloudy

1%

0% Thunder
( 3% severe)

E 6

96%

59°

Partly Cloudy

11 AM

68°

68°

Clear

ESE 7

76%

60°

2 PM

71°

71°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 13% severe)

ESE 8

71%

61°

5 PM

72°

72°

Partly Cloudy

ESE 7

68%

61°

8 PM

66°

66°

Partly Cloudy

9%

0% Thunder
( 17% severe)

ESE 7

81%

60°

11 PM

64°

64°

Mostly Cloudy

SE 6

90%

61°


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 60°	Low 62°	Low 59°	Low 55°	Low 58°
High 76°	High 75°	High 73°	High 75°	High 77°

Mostly Cloudy 42% Rain	Overcast 66% Rain	Partly Cloudy 47% Rain	Partly Cloudy 22% Rain	Partly Cloudy 36% Rain

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