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.

A Few Clouds

63°F

17°C

Humidity 81%
Wind Speed SW 16 mph
Barometer 29.75 in (1007.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 1:55 pm EST
Extended Forecast for

2 Miles SW Somerset IN

  • This Afternoon

    This Afternoon: A chance of rain before 4pm, then rain likely and possibly a thunderstorm between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 68. West wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 68 °F

    Rain Likely

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 59. Chance of precipitation is 90%.

    Low: 59 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 67. Breezy. Chance of precipitation is 100%.

    High: 67 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
A chance of rain before 4pm, then rain likely and possibly a thunderstorm between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 68. West wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Tonight
Mostly cloudy, with a low around 37. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
A 20 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 74.
Tuesday Night
Rain and possibly a thunderstorm. Low around 59. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 67. Breezy. Chance of precipitation is 100%.
Wednesday Night
A chance of rain and snow before 1am, then a slight chance of snow. Mostly cloudy, with a low around 28. Blustery. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 43. Breezy.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
A slight chance of rain. Mostly cloudy, with a high near 58. Breezy.
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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:
1:30 pm EST Mar 7, 2026
Forecast Valid:
2pm EST Mar 7, 2026-6pm EDT Mar 13, 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