Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

88°F

31°C

Humidity	50%
Wind Speed	S 8 mph
Barometer	29.89 in (1011.5 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	20 Sep 12:54 pm CDT

More Information:

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

Extended Forecast for

Elsah IL

This Afternoon
High: 90 °F
Partly Sunny
Tonight
Low: 66 °F
Chance
T-storms then
Showers
Likely
Monday
High: 74 °F
Chance
Showers then
Mostly Cloudy
Monday Night
Low: 60 °F
Mostly Cloudy
Tuesday
High: 74 °F
Mostly Cloudy
Tuesday Night
Low: 54 °F
Partly Cloudy
Wednesday
High: 75 °F
Sunny
Wednesday Night
Low: 54 °F
Partly Cloudy
Thursday
High: 76 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 90. West wind 6 to 8 mph.

Tonight

A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. North wind 6 to 9 mph. Chance of precipitation is 60%.

Monday

A 30 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 74. North wind 6 to 9 mph.

Monday Night

Mostly cloudy, with a low around 60. Northeast wind 6 to 10 mph.

Tuesday

Mostly cloudy, with a high near 74. Northeast wind 8 to 11 mph.

Tuesday Night

Partly cloudy, with a low around 54.

Wednesday

Sunny, with a high near 75.

Wednesday Night

Partly cloudy, with a low around 54.