National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Mostly Cloudy

60°F

16°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.69 in (1005.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 18 Apr 5:55 am EDT
Extended Forecast for

2 Miles SW Somerset IN

  • Today

    Today: Showers and possibly a thunderstorm before 11am, then a chance of showers. Temperature falling to around 49 by 3pm. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F⇓

    Showers then
    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 35. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 54. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 54 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 31. North wind 5 to 10 mph.

    Low: 31 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 52. North wind around 5 mph.

    High: 52 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Today
Showers and possibly a thunderstorm before 11am, then a chance of showers. Temperature falling to around 49 by 3pm. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 35. West wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 54. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 31. North wind 5 to 10 mph.
Monday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 52. North wind around 5 mph.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 55.
Wednesday
A slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Wednesday Night
A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 55. Chance of precipitation is 10%.
Thursday
Sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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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:
6:15 am EDT Apr 18, 2026
Forecast Valid:
6am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation