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.

Overcast

55°F

13°C

Humidity 40%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 14 Feb 12:55 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: Showers. High near 56. East wind 3 to 6 mph. Chance of precipitation is 80%.

    High: 56 °F

    Showers

  • Tonight

    Tonight: Showers. Steady temperature around 50. East wind 3 to 6 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 9am. Mostly cloudy, with a high near 57. Light east northeast wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. North wind around 6 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.

    High: 62 °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 59. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 31 mph.

    Low: 59 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 71. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 71 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers. High near 56. East wind 3 to 6 mph. Chance of precipitation is 80%.
Tonight
Showers. Steady temperature around 50. East wind 3 to 6 mph. Chance of precipitation is 100%.
Sunday
Showers likely, mainly before 9am. Mostly cloudy, with a high near 57. Light east northeast wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Partly cloudy, with a low around 38. North wind around 6 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.
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 59. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 31 mph.
Wednesday
Partly sunny, with a high near 71. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 71. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. South southwest wind 6 to 9 mph becoming west after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 58. West wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
1:01 pm CST Feb 14, 2026
Forecast Valid:
1pm CST Feb 14, 2026-6pm CST Feb 20, 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