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.

Partly Cloudy

28°C

83°F

Humidity 75%
Wind Speed SE 7 km/h
Barometer 30.05 in
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index32°C (90°F)
Last update 13 Jul 10:35 am CDT
Extended Forecast for

Harrisburg IL

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 30. Light southwest wind increasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 29 km/h. Chance of precipitation is 80%.

    High: 30 °C

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Patchy fog after 11pm. Low around 22. Calm wind. Chance of precipitation is 80%.

    Low: 22 °C

    Showers and
    Patchy Fog
    then Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 31. Calm wind.

    High: 31 °C

    Slight Chance
    T-storms and
    Patchy Fog
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 32. Calm wind becoming south southwest 5 to 10 km/h in the morning.

    High: 32 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °C

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. Southwest wind 5 to 11 km/h.

    High: 33 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 23. Southwest wind 5 to 10 km/h.

    Low: 23 °C

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. Southwest wind 5 to 11 km/h.

    High: 33 °C

    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 30. Light southwest wind increasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 29 km/h. Chance of precipitation is 80%.
Tonight
Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Patchy fog after 11pm. Low around 22. Calm wind. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 31. Calm wind.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 32. Calm wind becoming south southwest 5 to 10 km/h in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 23. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. Southwest wind 5 to 11 km/h.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 23. Southwest wind 5 to 10 km/h.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. Southwest wind 5 to 11 km/h.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 22. West wind 5 to 8 km/h becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 32. Northeast wind 5 to 10 km/h becoming southwest in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 22. Calm wind.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32. Calm wind becoming southwest 5 to 8 km/h in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.72°N 88.55°W
Last Update:
9:46 am CDT Jul 13, 2025
Forecast Valid:
10am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
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