National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

63°F

17°C

Humidity 35%
Wind Speed S 7 mph
Barometer 29.85 in (1010.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 21 Mar 5:53 pm EDT
Extended Forecast for

Cassville PA

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Calm wind becoming south around 5 mph after midnight.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Increasing clouds, with a high near 78. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Some of the storms could be severe. Low around 40. North wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Severe
    Thunderstorms
    then Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 49. Northwest wind around 11 mph, with gusts as high as 25 mph.

    High: 49 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. Calm wind becoming south around 5 mph after midnight.
Sunday
A chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Increasing clouds, with a high near 78. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Some of the storms could be severe. Low around 40. North wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 49. Northwest wind around 11 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 28. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 61. Chance of precipitation is 30%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Friday
A chance of showers. Mostly sunny, with a high near 50. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cassville PA
 40.3°N 78.03°W (Elev. 1198 ft)
Last Update:
2:21 pm EDT Mar 21, 2026
Forecast Valid:
6pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation