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

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Fair

58°F

14°C

Humidity 50%
Wind Speed Calm
Barometer 29.92 in (1013.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 21 Mar 2:53 pm EDT
Extended Forecast for

Gettysburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 78. Southwest wind 5 to 9 mph.

    High: 78 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Some of the storms could be severe. Low around 44. North wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Severe
    Thunderstorms
    then Showers

  • Monday

    Monday: Showers before 8am. High near 53. Northwest wind 9 to 11 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: 53 °F

    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Calm wind.
Sunday
Partly sunny, with a high near 78. Southwest wind 5 to 9 mph.
Sunday Night
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Some of the storms could be severe. Low around 44. North wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers before 8am. High near 53. Northwest wind 9 to 11 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.
Monday Night
Mostly clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 62. Chance of precipitation is 30%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 50.
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Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gettysburg PA
 39.82°N 77.21°W (Elev. 495 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