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Review of August 18, 2026 line of severe thunderstorms

Hazardous Weather Conditions

Current conditions at

Monroe Municipal Airport (KEFT)

Lat: 42.62°NLon: 89.59°WElev: 1082ft.

Fair

78°F

26°C

Humidity	79%
Wind Speed	SW 7 mph
Barometer	29.93 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	21 Aug 5:35 pm CDT

More Information:

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

Extended Forecast for

3 Miles N Orangeville IL

Severe T-storm Watch August 21, 05:42pm until August 21, 10:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch August 21, 05:42pm until August 21, 10:00pm
NOW until 10:00pm Fri
Severe T-storm Watch
This Afternoon
High: 80 °F
Severe
Thunderstorms
Tonight
Low: 60 °F
Severe
Thunderstorms
then Mostly
Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 53 °F
Clear
Sunday
High: 75 °F
Sunny
Sunday Night
Low: 53 °F
Mostly Clear
Monday
High: 76 °F
Mostly Sunny
Monday Night
Low: 57 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Showers and thunderstorms likely. Some of the storms could be severe. Partly sunny, with a high near 80. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 9pm. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 60. West wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Sunny, with a high near 79. Northwest wind 5 to 15 mph.

Saturday Night

Clear, with a low around 53. North wind 5 to 10 mph.

Sunday

Sunny, with a high near 75. Northwest wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 53. Calm wind.

Monday

Mostly sunny, with a high near 76. Calm wind.

Monday Night

Partly cloudy, with a low around 57. Calm wind.

Tuesday

A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.

Tuesday Night

A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.

Wednesday Night

Mostly clear, with a low around 61.

Thursday

Sunny, with a high near 79.

Thursday Night

Mostly clear, with a low around 60.

Friday

Mostly sunny, with a high near 79.