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.

Mostly Cloudy

41°F

5°C

Humidity 72%
Wind Speed S 3 mph
Barometer 29.97 in (1015.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 14 Feb 6:55 pm EST
Extended Forecast for

2 Miles SW Somerset IN

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 37. South wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Cloudy then
    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: A 20 percent chance of rain before 8am. Patchy fog before noon. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 52 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 56. South wind 5 to 10 mph.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. South wind 5 to 10 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain and thunderstorms before 1pm, then a slight chance of rain. Mostly sunny, with a high near 67. Breezy. Chance of precipitation is 30%.

    High: 67 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 37. South wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of rain before 8am. Patchy fog before noon. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 32. Calm wind.
Washington's Birthday
Partly sunny, with a high near 56. South wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 39. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 57.
Tuesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 50.
Wednesday
A chance of rain and thunderstorms before 1pm, then a slight chance of rain. Mostly sunny, with a high near 67. Breezy. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 42.
Thursday
A 30 percent chance of rain after 1pm. Mostly sunny, with a high near 61.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 48.
Friday Night
A chance of rain. Partly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
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:
6:31 pm EST Feb 14, 2026
Forecast Valid:
7pm EST Feb 14, 2026-6pm EST Feb 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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