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.

Fair

47°F

8°C

Humidity 75%
Wind Speed W 8 mph
Barometer 29.67 in (1005.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 8 Nov 12:55 am EST
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Overnight

    Overnight: Partly cloudy, with a low around 39. North wind around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54. Northeast wind around 5 mph becoming northwest in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Rain showers before 4am, then rain and snow showers. Low around 35. East wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Showers then
    Rain/Snow

  • Sunday

    Sunday: Rain and snow showers. High near 42. Northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of rain and snow showers before 7pm, then a chance of snow showers. Mostly cloudy, with a low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 23 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Monday

    Monday: A 30 percent chance of snow showers. Mostly sunny, with a high near 38.

    High: 38 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 44. Breezy.

    High: 44 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. North wind around 5 mph.
Saturday
Mostly cloudy, with a high near 54. Northeast wind around 5 mph becoming northwest in the afternoon.
Saturday Night
Rain showers before 4am, then rain and snow showers. Low around 35. East wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday
Rain and snow showers. High near 42. Northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of rain and snow showers before 7pm, then a chance of snow showers. Mostly cloudy, with a low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Monday
A 30 percent chance of snow showers. Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 23.
Veterans Day
Mostly cloudy, with a high near 44. Breezy.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Sunny, with a high near 54. Breezy.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 32.
Friday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.65°N 86.14°W (Elev. 804 ft)
Last Update:
12:00 am EST Nov 8, 2025
Forecast Valid:
1am EST Nov 8, 2025-6pm EST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation