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.

Partly Cloudy

49°F

9°C

Humidity 65%
Wind Speed N 14 mph
Barometer 30.09 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 28 Feb 11:55 pm CST
Extended Forecast for

Harrisburg IL

  • Overnight

    Overnight: Partly cloudy, with a low around 36. North wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers. Cloudy, with a low around 36. East northeast wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Monday

    Monday: Showers likely, mainly before noon. Cloudy, with a high near 48. East wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 48 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers. Cloudy, with a low around 43. East wind 5 to 9 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 70. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 70 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58. South wind 6 to 8 mph.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 72. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South southwest wind around 8 mph.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. North wind 5 to 11 mph, with gusts as high as 18 mph.
Sunday
Partly sunny, with a high near 50. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers. Cloudy, with a low around 36. East northeast wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Showers likely, mainly before noon. Cloudy, with a high near 48. East wind 5 to 8 mph. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers. Cloudy, with a low around 43. East wind 5 to 9 mph becoming south after midnight. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 70. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58. South wind 6 to 8 mph.
Wednesday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 72. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South southwest wind around 8 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 71. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. South southwest wind around 7 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 68. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
11:36 pm CST Feb 28, 2026
Forecast Valid:
12am CST Mar 1, 2026-6pm CST Mar 7, 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