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

72°F

22°C

Humidity 92%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 5:15 am CDT
Extended Forecast for

3 Miles NW Herald IL

Heat Advisory August 18, 05:24am until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 05:24am until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light east wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Light and variable wind.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming north 5 to 8 mph in the morning.

    High: 91 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. North wind 5 to 8 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89. North northeast wind 5 to 9 mph.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. North northeast wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 96. Calm wind becoming southeast around 6 mph.
Tonight
Mostly clear, with a low around 73. Light east wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Light and variable wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming north 5 to 8 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 67. North wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 89. North northeast wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 66. North northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 91. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Clear, with a low around 65. Light north wind.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. Calm wind becoming north northwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Herald IL
 38.02°N 88.25°W
Last Update:
4:30 am CDT Aug 18, 2025
Forecast Valid:
5am CDT Aug 18, 2025-6pm CDT Aug 24, 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