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.

A Few Clouds

11°C

52°F

Humidity 50%
Wind Speed S 22 km/h
Barometer 1013.1 mb (29.90 in)
Dewpoint 1°C (34°F)
Visibility 16 km
Wind Chill8°C (47°F)
Last update 18 Mar 9:55 am EDT
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Today

    Today: Mostly sunny, with a high near 21. South wind around 25 km/h, with gusts as high as 40 km/h.

    High: 21 °C

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 12. South wind around 25 km/h, with gusts as high as 45 km/h.

    Low: 12 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 5pm. High near 18. Windy, with a south wind 25 to 35 km/h increasing to 35 to 45 km/h in the afternoon. Winds could gust as high as 65 km/h. Chance of precipitation is 80%.

    High: 18 °C

    Mostly Sunny
    and Breezy
    then Showers
    and Windy

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain and snow showers. Some thunder is also possible. Low around 1. Breezy, with a southwest wind 30 to 35 km/h, with gusts as high as 55 km/h. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 1 °C

    Showers and
    Breezy then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers before 11am, then a chance of snow showers between 11am and 2pm. High near 6. Breezy, with a northwest wind 30 to 35 km/h, with gusts as high as 45 km/h. Chance of precipitation is 80%. New snow accumulation of less than one centimeter possible.

    High: 6 °C

    Breezy.
    Rain/Snow
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -2.

    Low: -2 °C

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 13.

    High: 13 °C

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 4.

    Low: 4 °C

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 9.

    High: 9 °C

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 21. South wind around 25 km/h, with gusts as high as 40 km/h.
Tonight
Partly cloudy, with a low around 12. South wind around 25 km/h, with gusts as high as 45 km/h.
Wednesday
Showers and possibly a thunderstorm after 5pm. High near 18. Windy, with a south wind 25 to 35 km/h increasing to 35 to 45 km/h in the afternoon. Winds could gust as high as 65 km/h. Chance of precipitation is 80%.
Wednesday Night
Rain showers before 5am, then rain and snow showers. Some thunder is also possible. Low around 1. Breezy, with a southwest wind 30 to 35 km/h, with gusts as high as 55 km/h. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Rain and snow showers before 11am, then a chance of snow showers between 11am and 2pm. High near 6. Breezy, with a northwest wind 30 to 35 km/h, with gusts as high as 45 km/h. Chance of precipitation is 80%. New snow accumulation of less than one centimeter possible.
Thursday Night
Mostly clear, with a low around -2.
Friday
Mostly sunny, with a high near 13.
Friday Night
A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 4.
Saturday
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 9.
Saturday Night
Partly cloudy, with a low around -1.
Sunday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 12. Chance of precipitation is 40%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 3. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 8.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.65°N 86.14°W (Elev. 804 m)
Last Update:
8:17 am EDT Mar 18, 2025
Forecast Valid:
10am EDT Mar 18, 2025-6pm EDT Mar 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation