Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

55°F

13°C

Humidity 96%
Wind Speed NW 3 mph
Barometer 30.14 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Aug 7:35 am CDT
Extended Forecast for

Montezuma IA

  • Today

    Today: Mostly sunny, with a high near 80. North northwest wind 3 to 5 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between 10am and noon.  Mostly sunny, with a high near 80. Calm wind.  Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. Light southeast wind.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

    High: 84 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. North northwest wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 57. Calm wind.
Monday
A slight chance of showers between 10am and noon. Mostly sunny, with a high near 80. Calm wind. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 61. Light southeast wind.
Tuesday
Partly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 63.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.6°N 92.55°W
6:02 am CDT Aug 23, 2026
7am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
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