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.

Partly Cloudy

71°F

22°C

Humidity 88%
Wind Speed NW 5 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 10 Jul 11:55 pm EDT
Extended Forecast for

Mexico IN

  • Overnight

    Overnight: A slight chance of showers and thunderstorms between 3am and 5am, then a slight chance of showers after 5am. Cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 3pm. Cloudy, with a high near 83. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. Northeast wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84. Northeast wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 61. Northeast wind around 5 mph.

    Low: 61 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms between 3am and 5am, then a slight chance of showers after 5am. Cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
Saturday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 3pm. Cloudy, with a high near 83. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 64. Northeast wind around 5 mph.
Sunday
Sunny, with a high near 84. Northeast wind 5 to 10 mph.
Sunday Night
Clear, with a low around 61. Northeast wind around 5 mph.
Monday
Sunny, with a high near 87.
Monday Night
Clear, with a low around 65.
Tuesday
Sunny and hot, with a high near 90.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 90.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 88.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 68.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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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:
12:17 am EDT Jul 11, 2026
Forecast Valid:
12am EDT Jul 11, 2026-6pm EDT Jul 17, 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