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.

Overcast and Breezy

35°F

2°C

Humidity 53%
Wind Speed SW 21 G 28 mph
Barometer 29.96 in (1015.7 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 21 Jan 10:55 am EST
Extended Forecast for

Mexico IN

  • Today

    Today: A 20 percent chance of snow showers before noon. Partly sunny, with a high near 37. West wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 37 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. Southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 17 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. West wind around 15 mph, with gusts as high as 25 mph.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -10. Southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 6. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 6 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy and cold, with a high near 10.

    High: 10 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 5.

    Low: 5 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.

    High: 15 °F

    Slight Chance
    Snow

Detailed Forecast

Today
A 20 percent chance of snow showers before noon. Partly sunny, with a high near 37. West wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 17. Southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 25. West wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -10. Southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.
Friday
Mostly cloudy and cold, with a high near 6. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy and cold, with a high near 10.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 5.
Sunday
A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Sunny and cold, with a high near 15.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mexico IN
 40.82°N 86.1°W (Elev. 699 ft)
Last Update:
7:16 am EST Jan 21, 2026
Forecast Valid:
11am EST Jan 21, 2026-6pm EST Jan 27, 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