Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

81°F

27°C

Humidity	58%
Wind Speed	W 9 mph
Barometer	30.06 in (1017.2 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	18 Aug 11:54 am CDT

More Information:

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

Extended Forecast for

3 Miles SE Defiance MO

This Afternoon
High: 87 °F
Mostly Sunny
Tonight
Low: 69 °F
Partly Cloudy
then Showers
Wednesday
High: 79 °F
Showers then
Chance
T-storms
Wednesday Night
Low: 66 °F
Slight Chance
T-storms then
Mostly Cloudy
Thursday
High: 83 °F
Partly Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 85 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
then Slight
Chance
Showers
Saturday
High: 86 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 87. Calm wind.

Tonight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 69. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%.

Wednesday

Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 5pm. High near 79. Light and variable wind. Chance of precipitation is 90%.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 66. Light northeast wind.

Thursday

Partly sunny, with a high near 83. Calm wind.

Thursday Night

Mostly clear, with a low around 64.

Friday

Sunny, with a high near 85.

Friday Night

A 20 percent chance of showers after 1am. Mostly clear, with a low around 66.

Saturday

Sunny, with a high near 86.