Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Mostly Cloudy

63°F

17°C

Humidity 65%
Wind Speed SW 6 mph
Barometer 30.05 in (1017.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 31 Mar 8:56 am EDT
Extended Forecast for

Mechanicsburg PA

  • Today

    Today: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 78. Northwest wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 20%.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 63. Southwest wind around 7 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 74. Southwest wind 6 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely.  Patchy fog after 2am. Low around 54. North wind 3 to 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 5pm.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 65. Light east wind becoming southeast 5 to 9 mph in the morning.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 52. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Northwest wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 63. Southwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 74. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Patchy fog after 2am. Low around 54. North wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 65. Light east wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Sunday
Showers likely. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 53. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.2°N 77.03°W (Elev. 436 ft)
8:05 am EDT Mar 31, 2026
9am EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
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Additional Resources

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