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

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Mostly Cloudy

77°F

25°C

Humidity 69%
Wind Speed N 9 G 18 mph
Barometer 29.80 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Jun 2:55 pm CDT
Extended Forecast for

Lewis 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: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 79. Northwest wind 8 to 10 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 59. North northwest wind 5 to 9 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 89. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 3am.  Mostly clear, with a low around 69. South wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny and hot, with a high near 97. Windy, with a south wind 15 to 25 mph, with gusts as high as 33 mph.

    High: 97 °F

    Hot and Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Windy.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Saturday

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

    High: 98 °F

    Hot and Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 77. Windy.

    Low: 77 °F

    Clear and
    Windy

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Windy.

    High: 97 °F

    Hot and Windy

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Northwest wind 8 to 10 mph. 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. North northwest wind 5 to 9 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 89. Calm wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms after 3am. Mostly clear, with a low around 69. South wind 9 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny and hot, with a high near 97. Windy, with a south wind 15 to 25 mph, with gusts as high as 33 mph.
Friday Night
Mostly clear, with a low around 77. Windy.
Saturday
Sunny and hot, with a high near 98. Windy.
Saturday Night
Clear, with a low around 77. Windy.
Sunday
Sunny and hot, with a high near 97. Windy.
Sunday Night
Mostly clear, with a low around 74. Windy.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 95. Breezy.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lewis IA
 41.31°N 95.09°W
2:51 pm CDT Jun 18, 2025
3pm CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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Additional Resources

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