National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Fair

23°F

-5°C

Humidity 93%
Wind Speed SW 3 mph
Barometer 30.25 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 8 Dec 7:55 pm CST
Extended Forecast for

Sullivan IN

  • Tonight

    Tonight: Increasing clouds, with a temperature falling to near 22 by midnight, then rising to around 27 during the remainder of the night. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 22 °F⇑

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 46. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 46 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South southwest wind 11 to 17 mph, with gusts as high as 33 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 45. West northwest wind 15 to 18 mph, with gusts as high as 34 mph.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. West northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 33. West wind around 7 mph.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 22. Light and variable wind becoming north around 6 mph in the evening.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 32. North northeast wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 32 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12. West northwest wind around 9 mph.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a temperature falling to near 22 by midnight, then rising to around 27 during the remainder of the night. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 46. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South southwest wind 11 to 17 mph, with gusts as high as 33 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 45. West northwest wind 15 to 18 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly cloudy, with a low around 25. West northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 33. West wind around 7 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22. Light and variable wind becoming north around 6 mph in the evening.
Friday
A 30 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 32. North northeast wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 12. West northwest wind around 9 mph.
Saturday
Mostly cloudy, with a high near 21. Northwest wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 15.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.1°N 87.41°W (Elev. 502 ft)
Last Update:
8:47 pm EST Dec 8, 2025
Forecast Valid:
9pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation