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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Sullivan IN

  • Overnight

    Overnight: Mostly cloudy, with a low around 23. South wind 7 to 11 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 42. West southwest wind 14 to 17 mph, with gusts as high as 32 mph.

    High: 42 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 34. Northwest wind around 6 mph.

    High: 34 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11. Calm wind becoming north northwest 5 to 8 mph after midnight.

    Low: 11 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 15. North wind around 11 mph, with gusts as high as 20 mph.

    High: 15 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 3. North northeast wind around 10 mph, with gusts as high as 18 mph.

    Low: 3 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow, mainly after 1pm. Cloudy, with a high near 15. Northeast wind around 10 mph, with gusts as high as 18 mph.

    High: 15 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 10. North northeast wind around 7 mph.

    Low: 10 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. South wind 7 to 11 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of snow before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 42. West southwest wind 14 to 17 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 22. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 34. Northwest wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 11. Calm wind becoming north northwest 5 to 8 mph after midnight.
Friday
Mostly cloudy, with a high near 15. North wind around 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 3. North northeast wind around 10 mph, with gusts as high as 18 mph.
Saturday
A 40 percent chance of snow, mainly after 1pm. Cloudy, with a high near 15. Northeast wind around 10 mph, with gusts as high as 18 mph.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 10. North northeast wind around 7 mph.
Sunday
Partly sunny, with a high near 21. North wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Mostly sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.1°N 87.41°W (Elev. 502 ft)
Last Update:
1:15 am EST Jan 21, 2026
Forecast Valid:
1am EST Jan 21, 2026-6pm EST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation