Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Heat Advisory until August 16, 09:00 PM CDT

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

78°F

26°C

Humidity	94%
Wind Speed	Calm
Barometer	30.03 in
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	16 Aug 5:15 am CDT

More Information:

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

Extended Forecast for

Mount Clare IL

Heat Advisory August 16, 05:22am until August 16, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 16, 05:22am until August 16, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
Overnight
Low: 73 °F
Chance
T-storms
Sunday
High: 88 °F
Chance
T-storms
Sunday Night
Low: 68 °F
Chance
T-storms
Monday
High: 83 °F
Mostly Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 68 °F
Slight Chance
T-storms then
Showers
Likely
Wednesday
High: 84 °F
Chance
Showers

Detailed Forecast

Overnight

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light west wind.

Sunday

A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 88. Heat index values as high as 100. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 68. North wind around 6 mph.

Monday

Mostly sunny, with a high near 83. North wind 6 to 8 mph.

Monday Night

Mostly clear, with a low around 63. Light north wind.

Tuesday

Sunny, with a high near 86.

Tuesday Night

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

Wednesday

A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84.

Wednesday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.

Thursday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 80.

Thursday Night

A 20 percent chance of showers. Partly cloudy, with a low around 61.

Friday

Mostly sunny, with a high near 81.

Friday Night

Partly cloudy, with a low around 62.