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.

Mostly Cloudy

39°F

4°C

Humidity 68%
Wind Speed SW 8 mph
Barometer 30.10 in (1020.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 13 Feb 6:55 pm EST
Extended Forecast for

Onward IN

  • Tonight

    Tonight: Mostly clear, with a low around 30. Southwest wind 5 to 10 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 53. South wind around 5 mph.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 55. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. Northeast wind around 5 mph becoming calm.

    Low: 35 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Southwest wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 53. South wind around 5 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 55. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 35. Northeast wind around 5 mph becoming calm.
Washington's Birthday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly cloudy, with a high near 57.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 64.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 55.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37.
Friday
A slight chance of rain. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onward IN
 40.7°N 86.22°W (Elev. 751 ft)
Last Update:
6:16 pm EST Feb 13, 2026
Forecast Valid:
7pm EST Feb 13, 2026-6pm EST Feb 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation