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

82°F

28°C

Humidity 41%
Wind Speed SW 15 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 7 Oct 5:55 pm EDT
Extended Forecast for

2 Miles N Grissom Air Force Base / Peru IN

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind 5 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. West wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. North wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77. South wind around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southeast wind 5 to 10 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm. High near 72. Chance of precipitation is 80%.

    High: 72 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 53. West wind 5 to 10 mph.
Thursday
Sunny, with a high near 73. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 50. North wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 77. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 58. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 84.
Saturday Night
Showers likely, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm. High near 72. Chance of precipitation is 80%.
Sunday Night
Mostly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 80.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 54.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Grissom Air Force Base / Peru IN
 40.69°N 86.14°W (Elev. 748 ft)
Last Update:
5:16 pm EDT Oct 7, 2026
Forecast Valid:
6pm EDT Oct 7, 2026-6pm EDT Oct 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