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Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

36°F

2°C

Humidity 76%
Wind Speed Calm
Barometer 30.55 in (1034.8 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 9 Apr 4:56 am EDT
Extended Forecast for

Lower Allen PA

Freeze Warning April 9, 05:02am until April 9, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning April 9, 05:02am until April 9, 09:00am

    NOW until 9:00am Thu

    Freeze Warning

  • Today

    High: 59 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Southeast wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 72. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 48. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 63. North wind 7 to 9 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Today
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming south 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 37. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 72. Calm wind becoming south 5 to 9 mph in the afternoon.
Friday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 48. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 63. North wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Mostly cloudy, with a high near 78.
Monday Night
Mostly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lower Allen PA
 40.23°N 76.91°W (Elev. 400 ft)
Last Update:
4:37 am EDT Apr 9, 2026
Forecast Valid:
5am EDT Apr 9, 2026-6pm EDT Apr 15, 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