Heavy Rainfall and Severe Thunderstorms in the Midwest and Southwest; Heat Continues in the Southern U.S.

Heavy to excessive rainfall could bring flooding today through Thursday across parts of the central Plains into the Midwest and southern Arizona and New Mexico. Scattered strong to severe thunderstorms may impact parts of eastern Nebraska into western Iowa later today into early evening. Heat Advisories remain in place across much of east Texas into the mid-Mississippi Valley today and Tuesday. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

65°F

18°C

Humidity	70%
Wind Speed	E 5 mph
Barometer	30.19 in (1022.1 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	14 Sep 7:53 am CDT

More Information:

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

Extended Forecast for

Collinsville IL

Today
High: 88 °F
Mostly Sunny
Tonight
Low: 73 °F
Mostly Clear
Tuesday
High: 99 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 74 °F
T-storms
Likely then
Showers
Likely
Wednesday
High: 96 °F
Mostly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 76 °F
Mostly Clear
Thursday
High: 95 °F
Mostly Sunny
Thursday Night
Low: 73 °F
Partly Cloudy
Friday
High: 93 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 88. Southeast wind 9 to 11 mph.

Tonight

Mostly clear, with a low around 73. Southeast wind 8 to 11 mph, with gusts as high as 21 mph.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 107. South wind 7 to 10 mph becoming west in the afternoon.

Tuesday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

Wednesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming southwest 5 to 7 mph in the morning.

Wednesday Night

Mostly clear, with a low around 76.

Thursday

Mostly sunny, with a high near 95.

Thursday Night

Partly cloudy, with a low around 73.

Friday

Mostly sunny, with a high near 93.

Friday Night

Partly cloudy, with a low around 72.

Saturday

Mostly sunny, with a high near 92.