National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Rain Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed SE 12 G 23 mph
Barometer 29.82 in (1009.1 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 31 Jul 6:54 am CDT
Extended Forecast for

Reinbeck IA

  • Today

    Today: Showers and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 75. Breezy, with a southeast wind 13 to 16 mph becoming south southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 75 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 4am, then a chance of showers after 4am. Low around 61. Windy, with a north northeast wind 16 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers and
    Windy

  • Saturday

    Saturday: A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 78. Windy, with a north wind 18 to 25 mph, with gusts as high as 32 mph.

    High: 78 °F

    Windy. Slight
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. North wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. North northeast wind 6 to 8 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 75. Breezy, with a southeast wind 13 to 16 mph becoming south southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 4am, then a chance of showers after 4am. Low around 61. Windy, with a north northeast wind 16 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 78. Windy, with a north wind 18 to 25 mph, with gusts as high as 32 mph.
Saturday Night
Mostly clear, with a low around 61. North wind 6 to 13 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 79. North northeast wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 78.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reinbeck IA
 42.32°N 92.59°W
Last Update:
6:01 am CDT Jul 31, 2026
Forecast Valid:
7am CDT Jul 31, 2026-6pm CDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation