Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Hazardous Weather Conditions

Air Quality Alert

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

67°F

19°C

Humidity	81%
Wind Speed	Calm
Barometer	30.07 in (1017.5 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Last update	7 Sep 9:54 pm CDT

More Information:

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

Extended Forecast for

Valley Park MO

Tonight
Low: 65 °F
Mostly Clear
Tuesday
High: 96 °F
Mostly Sunny
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 99 °F
Slight Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 70 °F
Showers
Likely then
Showers
Thursday
High: 83 °F
Showers
Likely
Thursday Night
Low: 65 °F
Partly Cloudy
Friday
High: 87 °F
Mostly Sunny
then Slight
Chance
Showers
Friday Night
Low: 68 °F
Partly Cloudy
then Chance
Showers

Detailed Forecast

Tonight

Mostly clear, with a low around 65. Light southeast wind.

Tuesday

Mostly sunny, with a high near 96. Heat index values as high as 100. Calm wind becoming south around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 74. South wind 3 to 6 mph.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind 5 to 7 mph. Chance of precipitation is 50%.

Wednesday Night

Showers and possibly a thunderstorm. Low around 70. Light and variable wind. Chance of precipitation is 90%.

Thursday

Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

Thursday Night

Partly cloudy, with a low around 65.

Friday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 87.

Friday Night

A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

Saturday

A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

Saturday Night

A 20 percent chance of showers. Mostly clear, with a low around 68.

Sunday

A 20 percent chance of showers. Sunny, with a high near 90.