Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 16, 09:00 PM CDT

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

86°F

30°C

Humidity	70%
Wind Speed	NW 8 mph
Barometer	30.05 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	16 Aug 1:45 pm CDT

More Information:

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

Extended Forecast for

Maryville IL

Extreme Heat Warning August 16, 02:00pm until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 02:00pm until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
This Afternoon
High: 93 °F
Mostly Sunny
Tonight
Low: 72 °F
T-storms
Likely
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 66 °F
Partly Cloudy
Tuesday
High: 88 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
then Chance
Showers
Wednesday
High: 87 °F
Showers
Likely
Wednesday Night
Low: 68 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 93. Heat index values as high as 107. West wind around 8 mph.

Tonight

Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 72. North wind 3 to 6 mph. Chance of precipitation is 70%.

Monday

Mostly sunny, with a high near 85. North wind 6 to 8 mph.

Monday Night

Partly cloudy, with a low around 66. North wind around 6 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 88. Light and variable wind.

Tuesday Night

A 40 percent chance of showers after 1am. Partly cloudy, with a low around 71.

Wednesday

Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 82.

Thursday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.

Friday Night

Mostly clear, with a low around 65.

Saturday

Sunny, with a high near 86.