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

30°F

-1°C

Humidity 74%
Wind Speed SE 8 mph
Barometer 30.01 in (1017.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 4 Jan 10:55 pm EST
Extended Forecast for

Mexico IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. South wind 5 to 10 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. Southwest wind 5 to 10 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. South wind around 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 49. South wind 5 to 10 mph becoming west in the afternoon.

    High: 49 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. West wind around 5 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 41. Southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 34. South wind around 5 mph.
Tuesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 49. South wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. West wind around 5 mph.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 54.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 48.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 38.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mexico IN
 40.82°N 86.13°W (Elev. 679 ft)
Last Update:
10:46 pm EST Jan 4, 2026
Forecast Valid:
11pm EST Jan 4, 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