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 ENE Onward IN

  • This Afternoon

    This Afternoon: Cloudy, with a high near 78. Southwest wind around 5 mph.

    High: 78 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 89. Southwest wind around 5 mph.

    High: 89 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Southwest wind around 5 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 78. Southwest wind around 5 mph.
Tonight
Mostly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 89. Southwest wind around 5 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Southwest wind around 5 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 85.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 64.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Onward IN
 40.72°N 86.16°W (Elev. 738 ft)
Last Update:
9:00 am EDT Jul 25, 2026
Forecast Valid:
1pm EDT Jul 25, 2026-6pm EDT Jul 31, 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