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

34°F

1°C

Humidity 56%
Wind Speed N 6 mph
Barometer 29.91 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 2 Jan 1:55 pm CST
Extended Forecast for

Sullivan IN

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 35. North northeast wind around 7 mph.

    High: 35 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 27. Northeast wind around 5 mph.

    Low: 27 °F

    Cloudy

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 39. North wind around 6 mph.

    High: 39 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. Light north northwest wind.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 38. Light and variable wind.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. Southwest wind 6 to 9 mph.

    High: 58 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 35. North northeast wind around 7 mph.
Tonight
Cloudy, with a low around 27. Northeast wind around 5 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 39. North wind around 6 mph.
Saturday Night
Mostly clear, with a low around 21. Light north northwest wind.
Sunday
Mostly sunny, with a high near 38. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 27. Calm wind becoming south southeast around 6 mph after midnight.
Monday
Sunny, with a high near 51. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 39. South wind around 6 mph.
Tuesday
Partly sunny, with a high near 58. Southwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 44.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 60.
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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:
2:45 pm EST Jan 2, 2026
Forecast Valid:
3pm EST Jan 2, 2026-6pm EST Jan 8, 2026
 
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Additional Resources

Radar & Satellite Image

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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