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

32°F

0°C

Humidity 65%
Wind Speed S 10 mph
Barometer 29.92 in (1014.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 5 Jan 3:55 am EST
Extended Forecast for

2 Miles SW Somerset IN

  • Today

    Today: Mostly sunny, with a high near 42. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 34. South wind 5 to 10 mph.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A 30 percent chance of rain before 1pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 48. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. West wind 5 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. Southwest wind 5 to 10 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 42. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 34. South wind 5 to 10 mph.
Tuesday
A 30 percent chance of rain before 1pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 48. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 48. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Thursday Night
Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 80%.
Friday
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 32.
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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:
4:16 am EST Jan 5, 2026
Forecast Valid:
4am EST Jan 5, 2026-6pm EST Jan 11, 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