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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

63°F

17°C

Humidity	100%
Wind Speed	Calm
Barometer	30.01 in (1015.4 mb)
Dewpoint	63°F (17°C)
Visibility	6.00 mi
Last update	4 Aug 5:54 am CDT

More Information:

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

Extended Forecast for

3 Miles WSW Old Monroe MO

Today
High: 89 °F
Patchy Fog
then Sunny
Tonight
Low: 69 °F
Mostly Clear
Wednesday
High: 90 °F
Mostly Sunny
then
Scattered
T-storms
Wednesday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Thursday
High: 86 °F
Showers
Likely
Thursday Night
Low: 69 °F
Partly Cloudy
then Slight
Chance
T-storms
Friday
High: 87 °F
Partly Sunny
Friday Night
Low: 70 °F
Chance
T-storms
Saturday
High: 90 °F
Mostly Sunny

Detailed Forecast

Today

Patchy fog before 8am. Otherwise, sunny, with a high near 89. Light and variable wind.

Tonight

Mostly clear, with a low around 69. Light southeast wind.

Wednesday

Scattered showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 90. Light south wind. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 70%.

Thursday

Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 86. Light south wind. Chance of precipitation is 70%.

Thursday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

Friday

Partly sunny, with a high near 87.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70.

Saturday

Mostly sunny, with a high near 90.

Saturday Night

Mostly clear, with a low around 72.