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

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Partly Cloudy

84°F

29°C

Humidity 61%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Jun 12:55 pm CDT
Extended Forecast for

5 Miles N Brooklyn IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 86. South wind around 7 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. West southwest wind around 7 mph becoming northwest in the morning. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. North northeast wind 5 to 7 mph becoming light and variable. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 66 °F

    Heavy Rain

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Southwest wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 89. Breezy.

    High: 89 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 86. South wind around 7 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. West southwest wind around 7 mph becoming northwest in the morning. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. North northeast wind 5 to 7 mph becoming light and variable. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Southwest wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Partly cloudy, with a low around 59.
Juneteenth
Sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 89. Breezy.
Friday Night
Mostly clear, with a low around 73. Breezy.
Saturday
Sunny, with a high near 93. Breezy.
Saturday Night
Clear, with a low around 74. Breezy.
Sunday
Sunny, with a high near 92. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Brooklyn IA
 41.81°N 92.45°W
Last Update:
12:23 pm CDT Jun 16, 2025
Forecast Valid:
1pm CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
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