Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

74°F

23°C

Humidity	96%
Wind Speed	Calm
Barometer	29.93 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	20 Aug 1:15 am CDT

More Information:

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

Extended Forecast for

Hillsboro IL

Overnight
Low: 68 °F
Scattered
Showers and
Patchy Fog
Thursday
High: 82 °F
Patchy Fog
then Mostly
Sunny
Thursday Night
Low: 62 °F
Mostly Clear
then Patchy
Fog
Friday
High: 84 °F
Patchy Fog
then Sunny
Friday Night
Low: 64 °F
Chance
T-storms
Saturday
High: 83 °F
Sunny then
Slight Chance
T-storms
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 81 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Mostly Cloudy
then Slight
Chance
Showers

Detailed Forecast

Overnight

Scattered showers and thunderstorms, mainly before 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.

Thursday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Northeast wind 3 to 6 mph.

Thursday Night

Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. Light northeast wind.

Friday

Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light and variable wind.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 64. Calm wind.

Saturday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83.

Saturday Night

Mostly clear, with a low around 61.