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

48°F

9°C

Humidity 86%
Wind Speed NW 6 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 21 Mar 2:53 am EDT
Extended Forecast for

Altoona PA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. North wind around 5 mph.

    Low: 44 °F

    Patchy Dense
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 60. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46. Calm wind becoming south around 5 mph after midnight.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 76. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: Rain and thunderstorms. Some of the storms could be severe. Low around 38. Northwest wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Severe
    Thunderstorms
    then Rain

  • Monday

    Monday: Rain likely before 8am. Partly sunny, with a high near 47. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Rain Likely
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °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

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. North wind around 5 mph.
Saturday
Partly sunny, with a high near 60. Northwest wind around 5 mph becoming calm in the afternoon.
Saturday Night
Mostly cloudy, with a low around 46. Calm wind becoming south around 5 mph after midnight.
Sunday
A chance of rain and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 76. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain and thunderstorms. Some of the storms could be severe. Low around 38. Northwest wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain likely before 8am. Partly sunny, with a high near 47. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 60. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Friday
A chance of rain. Partly sunny, with a high near 50. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altoona PA
 40.51°N 78.4°W (Elev. 1198 ft)
Last Update:
2:51 am EDT Mar 21, 2026
Forecast Valid:
3am EDT Mar 21, 2026-6pm EDT Mar 27, 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