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

Reading, Reading Regional Airport (KRDG)

Lat: 40.37°NLon: 75.96°WElev: 344ft.

Fog/Mist

50°F

10°C

Humidity 93%
Wind Speed Calm
Barometer 29.75 in (1007.7 mb)
Dewpoint 48°F (9°C)
Visibility 1.00 mi
Last update 21 Mar 1:54 am EDT
Extended Forecast for

3 Miles SSE Lenhartsville PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 45. West wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. North wind 5 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers likely after 11pm. Mostly cloudy, with a low around 45. Southwest wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Monday

    Monday: A slight chance of showers before 2pm. Partly sunny, with a high near 49. Breezy. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

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

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 45. West wind around 5 mph.
Saturday
Mostly sunny, with a high near 57. North wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 41. Calm wind.
Sunday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers likely after 11pm. Mostly cloudy, with a low around 45. Southwest wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers before 2pm. Partly sunny, with a high near 49. Breezy. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
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:
3 Miles SSE Lenhartsville PA
 40.52°N 75.86°W (Elev. 449 ft)
Last Update:
4:09 pm EDT Mar 20, 2026
Forecast Valid:
2am 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