Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Olney-Noble Airport (KOLY)

Lat: 38.72°NLon: 88.18°WElev: 479ft.

Mostly Cloudy

83°F

28°C

Humidity 84%
Wind Speed S 8 mph
Barometer 30.04 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 29 Jun 9:15 am CDT
Extended Forecast for

3 Miles NNW Claremont IL

Heat Advisory June 29, 11:00am until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Mostly sunny, with a high near 93. Heat index values as high as 107. South wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 109. South southwest wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 73. South southwest wind 5 to 7 mph.

    Low: 73 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. South southwest wind 5 to 7 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95. South southwest wind 3 to 6 mph.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 107. South wind 8 to 11 mph, with gusts as high as 17 mph.
Tonight
Mostly clear, with a low around 74. South wind 6 to 9 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 109. South southwest wind 6 to 9 mph, with gusts as high as 15 mph.
Tuesday Night
Clear, with a low around 73. South southwest wind 5 to 7 mph.
Wednesday
Sunny and hot, with a high near 96. South southwest wind 5 to 7 mph.
Wednesday Night
Clear, with a low around 75. South wind 3 to 5 mph.
Thursday
Sunny and hot, with a high near 95. South southwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Claremont IL
 38.77°N 88.01°W (Elev. 509 ft)
2:46 am CDT Jun 29, 2026
9am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
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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