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

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

A Few Clouds

48°F

9°C

Humidity 58%
Wind Speed SE 7 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 21 Mar 2:54 pm EDT
Extended Forecast for

Arnot PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 4pm. High near 64. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 2am, then a chance of rain and snow showers. Low around 27. North wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Showers then
    Rain/Snow

  • Monday

    Monday: A chance of snow showers before 8am. Mostly cloudy, with a high near 37. North wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 37 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 22. North wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 21 mph.
Sunday
Showers, mainly after 4pm. High near 64. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain showers before 2am, then a chance of rain and snow showers. Low around 27. North wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A chance of snow showers before 8am. Mostly cloudy, with a high near 37. North wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 22. North wind 5 to 8 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers before 8am, then a chance of rain showers after 2pm. Mostly cloudy, with a high near 51. Chance of precipitation is 40%.
Thursday Night
Rain and snow showers likely. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arnot PA
 41.67°N 77.12°W (Elev. 1791 ft)
Last Update:
2:21 pm EDT Mar 21, 2026
Forecast Valid:
3pm 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