Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Mostly Cloudy

71°F

22°C

Humidity 80%
Wind Speed S 18 G 32 mph
Barometer 29.91 in (1012.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 May 5:55 pm EDT
Extended Forecast for

5 Miles W Somerset IN

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 69. South wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 85. Southwest wind around 20 mph, with gusts as high as 35 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers.  Low around 57. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    T-storms then
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am.  Partly sunny, with a high near 67. North wind around 10 mph.

    High: 67 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47. North wind around 10 mph.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers.  Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 69. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 85. Southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 57. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 67. North wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 47. North wind around 10 mph.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Somerset IN
 40.71°N 85.96°W (Elev. 748 ft)
5:46 pm EDT May 18, 2026
6pm EDT May 18, 2026-6pm EDT May 25, 2026
 
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Additional Resources

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