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 >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Osceola Municipal Airport (KI75)

Lat: 41.05°NLon: 93.69°WElev: 1109ft.

Mostly Cloudy

75°F

24°C

Humidity	90%
Wind Speed	Calm
Barometer	29.91 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	19 Aug 6:15 pm CDT

More Information:

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

Extended Forecast for

Saint Charles IA

Tonight
Low: 63 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 81 °F
Mostly Sunny
Thursday Night
Low: 67 °F
Partly Cloudy
then Slight
Chance
T-storms
Friday
High: 85 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 66 °F
Chance
T-storms
Saturday
High: 82 °F
Sunny
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 79 °F
Slight Chance
Showers
Sunday Night
Low: 63 °F
Mostly Cloudy

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 81. Light and variable wind.

Thursday Night

A slight chance of showers and thunderstorms between 2am and 4am. Partly cloudy, with a low around 67. South southwest wind 3 to 6 mph. Chance of precipitation is 20%.

Friday

A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 85. Southwest wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light northwest wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Sunny, with a high near 82.

Saturday Night

Mostly clear, with a low around 62.

Sunday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 79.

Sunday Night

Mostly cloudy, with a low around 63.

Monday

Mostly sunny, with a high near 81.

Monday Night

Partly cloudy, with a low around 64.