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 and Breezy

76°F

24°C

Humidity 35%
Wind Speed W 23 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Mar 2:55 pm EDT
Extended Forecast for

2 Miles SW Somerset IN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 76. West wind around 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. North wind 5 to 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. East wind around 5 mph becoming south in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. Southwest wind 5 to 10 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 76. West wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 40. North wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 69. East wind around 5 mph becoming south in the afternoon.
Saturday Night
Mostly clear, with a low around 56. Southwest wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Somerset IN
 40.68°N 85.91°W (Elev. 748 ft)
Last Update:
3:00 pm EDT Mar 20, 2026
Forecast Valid:
3pm EDT Mar 20, 2026-6pm EDT Mar 26, 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