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

2 Miles SW Peru IN

  • Tonight

    Tonight: Partly cloudy, with a low around 35. South wind 5 to 10 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 55. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 4am, then rain after 4am. Low around 54. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Rain and
    Breezy

  • Friday

    Friday: A 50 percent chance of rain before 1pm. Partly sunny, with a high near 59. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 59 °F

    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 39. North wind around 5 mph becoming northeast after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before 1am, then a slight chance of snow showers. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: A 20 percent chance of snow showers. Mostly cloudy, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. South wind 5 to 10 mph.
Thursday
A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 55. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 4am, then rain after 4am. Low around 54. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 50 percent chance of rain before 1pm. Partly sunny, with a high near 59. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 39. North wind around 5 mph becoming northeast after midnight.
Saturday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Saturday Night
A chance of rain and snow showers before 1am, then a slight chance of snow showers. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Sunday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 30.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Wednesday
A chance of rain. Cloudy, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Peru IN
 40.73°N 86.1°W (Elev. 650 ft)
Last Update:
8:01 pm EST Jan 7, 2026
Forecast Valid:
10pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
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