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

74°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 74°F (23°C)
Visibility 7.00 mi
Last update 15 Aug 6:55 am CDT
Extended Forecast for

Omaha IL

Extreme Heat Warning August 15, 07:14am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 07:14am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. South southwest wind 3 to 6 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Heat index values as high as 107. West wind 5 to 7 mph.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North northwest wind 3 to 7 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Light south wind.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming west southwest around 6 mph in the morning.
Tonight
Clear, with a low around 76. South southwest wind 3 to 6 mph.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 107. West wind 5 to 7 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North northwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Mostly clear, with a low around 70. Light south wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. South southwest wind 5 to 11 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind 6 to 9 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North northeast wind 5 to 8 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Northeast wind 3 to 6 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Northeast wind 3 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Omaha IL
 37.89°N 88.32°W
Last Update:
7:01 am CDT Aug 15, 2026
Forecast Valid:
7am CDT Aug 15, 2026-6pm CDT Aug 21, 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