Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

61°F

16°C

Humidity 97%
Wind Speed NW 7 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Jun 10:53 pm CDT
Extended Forecast for

Le Grand IA

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

    Tonight: Mostly clear, with a low around 60. West northwest wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. West wind 6 to 9 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 3am.  Partly cloudy, with a low around 67. South wind 6 to 9 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 9am.  Partly sunny, then gradually becoming sunny, with a high near 93. Windy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.  New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Chance
    T-storms and
    Breezy then
    Sunny and
    Windy

  • Friday Night

    Friday Night: Clear, with a low around 76. Breezy, with a south wind around 18 mph, with gusts as high as 29 mph.

    Low: 76 °F

    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 96. Windy.

    High: 96 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 75. Breezy.

    Low: 75 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 96. Windy.

    High: 96 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Breezy.

    Low: 75 °F

    Clear and
    Breezy then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 60. West northwest wind around 6 mph.
Juneteenth
Sunny, with a high near 86. West wind 6 to 9 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 67. South wind 6 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, then gradually becoming sunny, with a high near 93. Windy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Clear, with a low around 76. Breezy, with a south wind around 18 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 96. Windy.
Saturday Night
Clear, with a low around 75. Breezy.
Sunday
Sunny, with a high near 96. Windy.
Sunday Night
Mostly clear, with a low around 75. Breezy.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Le Grand IA
 42.01°N 92.77°W
10:49 pm CDT Jun 18, 2025
11pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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