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.

Rain Fog/Mist

70°F

21°C

Humidity 88%
Wind Speed SW 7 mph
Barometer 29.75 in (1007.0 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 1 Aug 5:55 am EDT
Extended Forecast for

Mexico IN

  • Today

    Today: Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 76 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 65. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 65 °F

    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before noon. High near 77. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of thunderstorms before 8pm. Partly cloudy, with a low around 62. Northeast wind around 10 mph. Chance of precipitation is 10%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. North wind 5 to 10 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and possibly a thunderstorm. Low around 65. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday
Showers and thunderstorms, mainly before noon. High near 77. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of thunderstorms before 8pm. Partly cloudy, with a low around 62. Northeast wind around 10 mph. Chance of precipitation is 10%.
Monday
Mostly sunny, with a high near 78. North wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 62.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mexico IN
 40.82°N 86.1°W (Elev. 699 ft)
Last Update:
5:01 am EDT Aug 1, 2026
Forecast Valid:
6am EDT Aug 1, 2026-6pm EDT Aug 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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