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. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Partly Cloudy

78°F

26°C

Humidity	90%
Wind Speed	E 5 mph
Barometer	30.01 in (1015.5 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	15 Aug 4:54 am CDT

More Information:

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

Extended Forecast for

Rockbridge IL

Heat Advisory August 15, 04:58am until August 16, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 15, 04:58am until August 16, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
Overnight
Low: 75 °F
T-storms
Likely
Saturday
High: 89 °F
T-storms
Likely then
Partly Sunny
Saturday Night
Low: 73 °F
Partly Cloudy
then Chance
T-storms
Sunday
High: 90 °F
Chance
T-storms then
Mostly Sunny
Sunday Night
Low: 67 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday
High: 84 °F
Mostly Sunny
Monday Night
Low: 63 °F
Partly Cloudy
Tuesday
High: 87 °F
Sunny

Detailed Forecast

Overnight

Showers and thunderstorms likely, mainly after 5am. Mostly cloudy, with a low around 75. Southeast wind around 5 mph. Chance of precipitation is 60%.

Saturday

Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 89. Heat index values as high as 103. Light and variable wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 70%.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 73. Light and variable wind.

Sunday

A 30 percent chance of showers and thunderstorms before 7am. Partly sunny, with a high near 90. Heat index values as high as 102. West wind 3 to 7 mph.

Sunday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 67. North wind 3 to 7 mph. Chance of precipitation is 20%.

Monday

Mostly sunny, with a high near 84.

Monday Night

Partly cloudy, with a low around 63.

Tuesday

Sunny, with a high near 87.

Tuesday Night

A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.