Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

87°F

31°C

Humidity	46%
Wind Speed	E 5 mph
Barometer	29.99 in (1015.1 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	4 Aug 2:54 pm CDT

More Information:

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

Extended Forecast for

2 Miles S Dow IL

Tonight
Low: 68 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 69 °F
T-storms
Likely
Thursday
High: 83 °F
T-storms then
Chance
T-storms
Thursday Night
Low: 69 °F
Chance
T-storms
Friday
High: 85 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 69 °F
Chance
T-storms
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 72 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 68. Southeast wind 3 to 6 mph.

Wednesday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Light southeast wind becoming south 5 to 9 mph in the morning.

Wednesday Night

Showers and thunderstorms likely, mainly after 3am. Mostly cloudy, with a low around 69. North wind 5 to 10 mph becoming light and variable. Chance of precipitation is 70%.

Thursday

Showers and thunderstorms, mainly before 10am. High near 83. West wind around 6 mph becoming south in the morning. Chance of precipitation is 80%.

Thursday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light and variable wind.

Friday

A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Chance of precipitation is 30%.

Friday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 69.

Saturday

Mostly sunny, with a high near 88.

Saturday Night

Mostly clear, with a low around 72.

Sunday

Mostly sunny, with a high near 91.

Sunday Night

Mostly clear, with a low around 75.

Monday

Sunny, with a high near 94.