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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles NW Lagro IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Southwest wind around 10 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 78. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 47. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm. Cloudy, with a high near 54. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely. Cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. Southwest wind around 10 mph.
Monday
Partly sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 78. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 47. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Cloudy, with a high near 54. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 64. Chance of precipitation is 80%.
Thursday Night
Showers likely. Cloudy, with a low around 45. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 51.
Sunday
Showers likely. Mostly cloudy, with a high near 60. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Lagro IN
 40.87°N 85.77°W (Elev. 840 ft)
Last Update:
6:15 pm EDT Mar 29, 2026
Forecast Valid:
6pm EDT Mar 29, 2026-6pm EDT Apr 5, 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