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.

Fog

33°F

1°C

Humidity 95%
Wind Speed S 5 mph
Barometer 30.00 in (1016.7 mb)
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Wind Chill28°F (-2°C)
Last update 16 Feb 6:55 am EST
Extended Forecast for

Peru IN

Dense Fog Advisory until February 16, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 16, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Washington's Birthday

    High: 58 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. South wind 5 to 10 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday

    Wednesday: A 40 percent chance of rain before 1pm. Mostly sunny, with a high near 68. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after 1pm. Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Washington's Birthday
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 58. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 56. South wind 5 to 10 mph.
Tuesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of rain before 1pm. Mostly sunny, with a high near 68. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
A 40 percent chance of rain after 1pm. Partly sunny, with a high near 64.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 50.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 36.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.76°N 86.07°W (Elev. 656 ft)
Last Update:
7:01 am EST Feb 16, 2026
Forecast Valid:
7am EST Feb 16, 2026-6pm EST Feb 22, 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