Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

A Few Clouds

73°F

23°C

Humidity 74%
Wind Speed N 7 mph
Barometer 29.85 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 2:35 pm CDT
Extended Forecast for

Sac City IA

Extreme Heat Watch June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm.  High near 78. North wind around 10 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 59. West wind 6 to 9 mph.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    Showers then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 87. Southwest wind 6 to 10 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after midnight.  Partly cloudy, with a low around 70. South wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny and hot, with a high near 97. Windy, with a south wind 15 to 23 mph, with gusts as high as 32 mph.

    High: 97 °F

    Hot and Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Windy.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Windy.

    High: 99 °F

    Hot and Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 78. Windy.

    Low: 78 °F

    Clear and
    Windy

  • Sunday

    Sunday: Sunny and hot, with a high near 98. Windy.

    High: 98 °F

    Hot and Windy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 78. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 59. West wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 87. Southwest wind 6 to 10 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 70. South wind 9 to 14 mph, with gusts as high as 21 mph.
Friday
Sunny and hot, with a high near 97. Windy, with a south wind 15 to 23 mph, with gusts as high as 32 mph.
Friday Night
Mostly clear, with a low around 76. Windy.
Saturday
Sunny and hot, with a high near 99. Windy.
Saturday Night
Clear, with a low around 78. Windy.
Sunday
Sunny and hot, with a high near 98. Windy.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 72. Breezy.
Monday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.
Monday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sac City IA
 42.42°N 95°W
2:51 pm CDT Jun 18, 2025
2pm CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database