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Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

50°F

10°C

Humidity 68%
Wind Speed NW 16 G 33 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Apr 2:53 am EDT
Extended Forecast for

Mount Union PA

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Overnight

    Overnight: Showers likely, mainly after 4am. Cloudy, with a low around 43. Northwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly before 8am. High near 52. Northwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain showers before 1am, then a chance of rain and snow showers between 1am and 3am, then a slight chance of rain showers after 3am. Partly cloudy, with a low around 34. West wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Monday

    Monday: Widespread frost, mainly between 7am and 8am. Otherwise, mostly sunny, with a high near 46. Northwest wind around 10 mph, with gusts as high as 24 mph.

    High: 46 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Widespread frost after 5am. Otherwise, mostly clear, with a low around 26. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear
    then Frost

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Partly cloudy, with a low around 44. Chance of precipitation is 30%.

    Low: 44 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly after 4am. Cloudy, with a low around 43. Northwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly before 8am. High near 52. Northwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of rain showers before 1am, then a chance of rain and snow showers between 1am and 3am, then a slight chance of rain showers after 3am. Partly cloudy, with a low around 34. West wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Widespread frost, mainly between 7am and 8am. Otherwise, mostly sunny, with a high near 46. Northwest wind around 10 mph, with gusts as high as 24 mph.
Monday Night
Widespread frost after 5am. Otherwise, mostly clear, with a low around 26. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 59.
Tuesday Night
A chance of showers after 2am. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 79.
Friday Night
A chance of showers. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
Saturday
Showers likely. Partly sunny, with a high near 72. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Union PA
 40.4°N 77.9°W (Elev. 666 ft)
Last Update:
2:21 am EDT Apr 19, 2026
Forecast Valid:
3am EDT Apr 19, 2026-6pm EDT Apr 25, 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