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

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles NW Lagro IN

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 81. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Low around 54. West wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: Showers likely before 8am. Mostly sunny, with a high near 68. West wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. West wind around 5 mph becoming south after midnight.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind.
Wednesday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 81. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Low around 54. West wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Thursday
Showers likely before 8am. Mostly sunny, with a high near 68. West wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 49. West wind around 5 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
A slight chance of showers. Mostly cloudy, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Lagro IN
 40.87°N 85.77°W (Elev. 840 ft)
Last Update:
10:31 pm EDT Sep 2, 2025
Forecast Valid:
11pm EDT Sep 2, 2025-6pm EDT Sep 9, 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