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June 21, 2026 Severe Storm Summary

Hazardous Weather Conditions

Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Overcast

70°F

21°C

Humidity	97%
Wind Speed	E 5 mph
Barometer	29.90 in (1011.9 mb)
Dewpoint	69°F (21°C)
Visibility	8.00 mi
Last update	28 Jun 3:54 am CDT

More Information:

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

Extended Forecast for

Forest City IL

Heat Advisory June 29, 11:00am until July 3, 12:00am

Heat Advisory June 28, 01:00pm until June 28, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 89 °F
Slight Chance
T-storms and
Patchy Fog
then Mostly
Sunny
Tonight
Low: 75 °F
Mostly Clear
Monday
High: 93 °F
Mostly Sunny
Monday Night
Low: 76 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 75 °F
Clear
Wednesday
High: 94 °F
Sunny
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 95 °F
Hot

Detailed Forecast

Today

A slight chance of showers and thunderstorms between 9am and 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 100. Light east southeast wind becoming south southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 75. South southeast wind 6 to 8 mph, with gusts as high as 18 mph.

Monday

Mostly sunny, with a high near 93. Heat index values as high as 106. South wind 6 to 10 mph, with gusts as high as 22 mph.

Monday Night

Mostly clear, with a low around 76. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

Tuesday

Sunny, with a high near 94. South southwest wind 6 to 10 mph, with gusts as high as 21 mph.

Tuesday Night

Clear, with a low around 75. South southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

Wednesday

Sunny, with a high near 94. South southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.