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.

Fair

9°F

-13°C

Humidity 48%
Wind Speed W 12 mph
Barometer 30.54 in
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 26 Jan 11:15 am CST
Extended Forecast for

Harrisburg IL

Extreme Cold Warning January 26, 11:23am until January 27, 10:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 11:23am until January 27, 10:00am

    NOW until 10:00am Tue

    Extreme Cold Warning

  • Today

    High: 13 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a temperature rising to around 8 by 3am. Wind chill values as low as -12. Light southwest wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 23 mph.

    Low: 1 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 29. Wind chill values as low as -6. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 29 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. West northwest wind around 5 mph becoming calm in the evening.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 3. Light and variable wind.

    Low: 3 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 21. Light north wind.

    High: 21 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light north wind.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 13. Wind chill values as low as -6. West northwest wind 5 to 10 mph becoming light west southwest in the afternoon.
Tonight
Mostly clear, with a temperature rising to around 8 by 3am. Wind chill values as low as -12. Light southwest wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 29. Wind chill values as low as -6. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around -3. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 27. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 3. Light and variable wind.
Thursday
Mostly cloudy, with a high near 21. Light north wind.
Thursday Night
Mostly cloudy, with a low around 2. Light north wind.
Friday
Mostly sunny, with a high near 18. North wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around -3. Northwest wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 21. Northwest wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 3. Calm wind.
Sunday
Partly sunny, with a high near 28. Calm wind becoming south southwest around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
11:01 am CST Jan 26, 2026
Forecast Valid:
11am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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