Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Heavy Rain Fog

49°F

9°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 29.95 in (1014.8 mb)
Dewpoint 48°F (9°C)
Visibility 0.63 mi
Wind Chill47°F (8°C)
Last update 5 Mar 2:55 am EST
Extended Forecast for

5 Miles SE Peru IN

Dense Fog Advisory until March 5, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 5, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 45 °F

    Showers
    Likely and
    Dense Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then a chance of showers after 4pm.  Widespread dense fog, mainly before 7am. High near 60. Southeast wind 5 to 10 mph becoming west in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers and
    Dense Fog
    then Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers before 1am, then a slight chance of showers after 4am.  Mostly cloudy, with a low around 49. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 73. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 7pm, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 61. South wind 15 to 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 67. Breezy.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Widespread dense fog. Otherwise, cloudy, with a low around 45. South wind around 5 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then a chance of showers after 4pm. Widespread dense fog, mainly before 7am. High near 60. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A slight chance of showers before 1am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Friday Night
A slight chance of showers before 7pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. South wind 15 to 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. High near 67. Breezy. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 70.
Monday Night
A 30 percent chance of rain and thunderstorms. Partly cloudy, with a low around 55.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Cloudy, with a low around 50. Breezy.
Wednesday
Rain. Mostly cloudy, with a high near 59. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Peru IN
 40.71°N 85.99°W (Elev. 794 ft)
2:01 am EST Mar 5, 2026
3am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database