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Tropical Depression Nine in the Gulf of America; California October Heat Wave Continues

Tropical Depression Nine is forecast to track toward the central U.S. Gulf Coast while strengthening into a tropical storm by early Wednesday and a hurricane on Thursday. Stay tuned to forecast updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday in Coastal California. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

60°F

16°C

Humidity 86%
Wind Speed SW 7 mph
Barometer 29.88 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Oct 1:15 am CDT
Extended Forecast for

Brooklyn IA

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, clear, with a low around 55. West southwest wind 6 to 8 mph.

    Low: 55 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 76. Northwest wind 3 to 6 mph.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Calm wind becoming northwest around 5 mph after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Light north wind.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, clear, with a low around 55. West southwest wind 6 to 8 mph.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 76. Northwest wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 52. Calm wind becoming northwest around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 70. Light north wind.
Thursday Night
Partly cloudy, with a low around 52. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 57.
Columbus Day
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IA
 41.72°N 92.43°W
Last Update:
10:26 pm CDT Oct 6, 2026
Forecast Valid:
1am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation