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.

Mostly Cloudy

50°F

10°C

Humidity 51%
Wind Speed NW 10 mph
Barometer 29.98 in (1015.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 1 May 1:55 pm EDT
Extended Forecast for

Mexico IN

Frost Advisory May 2, 02:00am until May 2, 09:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: A 10 percent chance of showers after 4pm. Mostly cloudy, with a high near 52. Northwest wind around 10 mph.

    High: 52 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 33. North wind 5 to 10 mph.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 54. North wind 5 to 10 mph.

    High: 54 °F

    Frost then
    Partly Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 35. Northwest wind 5 to 10 mph becoming light and variable.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Partly sunny, with a high near 61. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 10 percent chance of showers after 4pm. Mostly cloudy, with a high near 52. Northwest wind around 10 mph.
Tonight
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 33. North wind 5 to 10 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 54. North wind 5 to 10 mph.
Saturday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 35. Northwest wind 5 to 10 mph becoming light and variable.
Sunday
Partly sunny, with a high near 61. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 60.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 58.
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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:
2:30 pm EDT May 1, 2026
Forecast Valid:
2pm EDT May 1, 2026-6pm EDT May 7, 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