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August / Summer 2026 Climate Summary and Outlook for Sept / Fall

Hazardous Weather Conditions

Current conditions at

Burlington Regional Airport (KBRL)

Lat: 40.77°NLon: 91.13°WElev: 679ft.

Fair

93°F

34°C

Humidity	54%
Wind Speed	S 9 mph
Barometer	29.92 in (1012.2 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	3 Sep 1:53 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SE Keithsburg IL

Extreme Heat Warning September 3, 02:09pm until September 5, 07:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning September 3, 02:09pm until September 5, 07:00pm
NOW until 7:00pm Sat
Extreme Heat Warning
This Afternoon
High: 94 °F
Sunny
Tonight
Low: 76 °F
Clear
Friday
High: 95 °F
Hot
Friday Night
Low: 73 °F
Mostly Clear
then Slight
Chance
T-storms
Saturday
High: 92 °F
Sunny
Saturday Night
Low: 69 °F
Mostly Clear
Sunday
High: 87 °F
Mostly Sunny
Sunday Night
Low: 66 °F
Mostly Clear

Detailed Forecast

This Afternoon

Sunny, with a high near 94. Heat index values as high as 105. South wind around 5 mph.

Tonight

Clear, with a low around 76. South wind around 5 mph.

Friday

Sunny and hot, with a high near 95. Heat index values as high as 107. South wind around 5 mph.

Friday Night

A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 73. Calm wind. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 92.

Saturday Night

Mostly clear, with a low around 69.

Sunday

Mostly sunny, with a high near 87.

Sunday Night

Mostly clear, with a low around 66.

Labor Day

Mostly sunny, with a high near 87.

Monday Night

Partly cloudy, with a low around 68.