National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

37°F

3°C

Humidity 68%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 14 Feb 5:35 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Rain, mainly after 1pm. High near 54. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 80%.

    High: 54 °F

    Chance Rain
    then Rain

  • Tonight

    Tonight: Rain. Steady temperature around 49. Southeast wind 7 to 9 mph. Chance of precipitation is 100%.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. North northeast wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 61. Calm wind becoming south around 5 mph.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 3 to 6 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. South southwest wind 14 to 18 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. Southwest wind 8 to 16 mph, with gusts as high as 28 mph.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Rain, mainly after 1pm. High near 54. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 80%.
Tonight
Rain. Steady temperature around 49. Southeast wind 7 to 9 mph. Chance of precipitation is 100%.
Sunday
Rain likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 6 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 38. North northeast wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 61. Calm wind becoming south around 5 mph.
Monday Night
Mostly cloudy, with a low around 44. South wind 3 to 6 mph.
Tuesday
Mostly cloudy, with a high near 65. South wind 6 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 56. South southwest wind 14 to 18 mph, with gusts as high as 30 mph.
Wednesday
Partly sunny, with a high near 70. Southwest wind 8 to 16 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly cloudy, with a low around 50. Southwest wind around 7 mph.
Thursday
A slight chance of rain. Mostly sunny, with a high near 71. South wind 6 to 13 mph, with gusts as high as 22 mph.
Thursday Night
A slight chance of rain and thunderstorms. Mostly cloudy, with a low around 47. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Friday
Partly sunny, with a high near 59. West wind 7 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
4:52 am CST Feb 14, 2026
Forecast Valid:
5am CST Feb 14, 2026-6pm CST Feb 20, 2026
 
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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