Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

72°F

22°C

Humidity	79%
Wind Speed	W 7 mph
Barometer	29.68 in
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	1 Aug 3:55 am CDT

More Information:

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

Extended Forecast for

Chesterfield IL

Today
High: 77 °F
Chance
Showers then
Showers
Tonight
Low: 64 °F
Showers then
Chance
Showers
Sunday
High: 80 °F
Partly Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Monday
High: 82 °F
Sunny
Monday Night
Low: 61 °F
Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 85 °F
Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 77. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

Tonight

Showers and thunderstorms before 10pm, then a chance of showers. Low around 64. North wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Sunday

Partly sunny, with a high near 80. North wind around 15 mph, with gusts as high as 23 mph.

Sunday Night

Mostly clear, with a low around 61. North wind 5 to 10 mph becoming light after midnight.

Monday

Sunny, with a high near 82. North wind 3 to 6 mph.

Monday Night

Clear, with a low around 61.

Tuesday

Sunny, with a high near 84.

Tuesday Night

Mostly clear, with a low around 63.