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

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Mostly Cloudy

65°F

18°C

Humidity 78%
Wind Speed S 10 G 18 mph
Barometer 29.92 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 9 Mar 10:55 pm CDT
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 66. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 78. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 78 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 66 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 73. South southwest wind 15 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

    High: 73 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 54. North northwest wind around 6 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Light south wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 24 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. West southwest wind around 5 mph becoming light and variable.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 66. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 78. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 73. South southwest wind 15 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 54. North northwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 41. Light south wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 24 mph.
Friday
Mostly cloudy, with a high near 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 41. West southwest wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 71. East southeast wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 54. South wind 9 to 13 mph, with gusts as high as 24 mph.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 68. South southwest wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 31. North northwest wind around 15 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 44. North northwest wind around 11 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
7:51 pm CDT Mar 9, 2026
Forecast Valid:
11pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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