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Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

68°F

20°C

Humidity 33%
Wind Speed W 16 G 33 mph
Barometer 30.24 in (1023.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Apr 11:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 70. West wind around 16 mph, with gusts as high as 25 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly before midnight. Mostly cloudy, with a low around 41. Northwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 58. Northwest wind around 10 mph.

    High: 58 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. Calm wind becoming southeast around 6 mph after midnight.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 70. South wind around 11 mph, with gusts as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 70. West wind around 16 mph, with gusts as high as 25 mph.
Tonight
Showers likely, mainly before midnight. Mostly cloudy, with a low around 41. Northwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 58. Northwest wind around 10 mph.
Saturday Night
Mostly clear, with a low around 40. Calm wind becoming southeast around 6 mph after midnight.
Sunday
Partly sunny, with a high near 70. South wind around 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
10:07 am EDT Apr 10, 2026
Forecast Valid:
12pm EDT Apr 10, 2026-6pm EDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation