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

21°F

-6°C

Humidity 86%
Wind Speed S 6 mph
Barometer 29.92 in
Dewpoint 18°F (-8°C)
Visibility 9.00 mi
Wind Chill13°F (-11°C)
Last update 5 Feb 10:55 pm CST
Extended Forecast for

Sullivan IN

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 25. South southwest wind around 8 mph.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of freezing rain before 11am. Cloudy, with a high near 38. Southwest wind 6 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Freezing Rain
    then Cloudy

  • Friday Night

    Friday Night: Cloudy during the early evening, then gradual clearing, with a low around 14. North wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 27. North northeast wind 3 to 6 mph.

    High: 27 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16. Calm wind becoming southeast around 5 mph after midnight.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 37. South southeast wind 6 to 8 mph.

    High: 37 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21. East southeast wind 3 to 5 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. Light and variable wind becoming south southeast around 5 mph in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. South wind 3 to 5 mph.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 25. South southwest wind around 8 mph.
Friday
A slight chance of freezing rain before 11am. Cloudy, with a high near 38. Southwest wind 6 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.
Friday Night
Cloudy during the early evening, then gradual clearing, with a low around 14. North wind 8 to 13 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 27. North northeast wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 16. Calm wind becoming southeast around 5 mph after midnight.
Sunday
Mostly cloudy, with a high near 37. South southeast wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 21. East southeast wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 45. Light and variable wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 30. South wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 54. South wind around 7 mph.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of rain. Cloudy, with a high near 51.
Wednesday Night
A 30 percent chance of rain. Cloudy, with a low around 32.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
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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:
12:01 am EST Feb 6, 2026
Forecast Valid:
12am EST Feb 6, 2026-6pm EST Feb 12, 2026
 
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Additional Resources

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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