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

Reedsville / Mifflin (KRVL)

Lat: 40.68°NLon: 77.63°WElev: 820ft.

Fog

45°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.79 in
Dewpoint 45°F (7°C)
Visibility 0.15 mi
Last update 21 Mar 4:15 am EDT
Extended Forecast for

Lewistown PA

  • Today

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

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms after 2pm. Partly sunny, with a high near 78. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 11pm, then rain after 11pm. Low around 40. North wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain

  • Monday

    Monday: Rain before 8am. High near 49. Northwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °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 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 60. North wind around 5 mph becoming calm in the afternoon.
Tonight
Mostly cloudy, with a low around 44. Calm wind.
Sunday
A chance of rain and thunderstorms after 2pm. Partly sunny, with a high near 78. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 11pm, then rain after 11pm. Low around 40. North wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain before 8am. High near 49. Northwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
A chance of rain. Partly sunny, with a high near 52. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown PA
 40.61°N 77.57°W (Elev. 515 ft)
Last Update:
3:36 am EDT Mar 21, 2026
Forecast Valid:
4am 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