Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Partly Cloudy and Breezy

89°F

32°C

Humidity 66%
Wind Speed S 23 G 30 mph
Barometer 29.79 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 29 Jun 4:35 pm CDT
Extended Forecast for

3 Miles WSW Tama IA

Extreme Heat Warning June 29, 04:45pm until July 1, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 29, 04:45pm until July 1, 10:00pm

    NOW until 10:00pm Wed

    Extreme Heat Warning

  • This Afternoon

    High: 94 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph.

    Low: 76 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 102. Breezy, with a south southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 96 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 11pm.  Partly cloudy, with a low around 74. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 95. Breezy, with a south southwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 95 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 75. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 94. Heat index values as high as 106. Windy, with a south wind around 21 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 76. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 96. Heat index values as high as 102. Breezy, with a south southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 74. South southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 95. Breezy, with a south southwest wind 9 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 93.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 70.
Independence Day
Mostly sunny, with a high near 92.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Tama IA
 41.95°N 92.63°W
3:13 pm CDT Jun 29, 2026
4pm CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database