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

81°F

27°C

Humidity 34%
Wind Speed SW 18 G 24 mph
Barometer 29.81 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Mar 4:15 pm CDT
Extended Forecast for

Sullivan IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. West wind 5 to 13 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Northeast wind around 6 mph becoming south in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. South southwest wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82. South southwest wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of rain and thunderstorms before 11pm, then a chance of rain between 11pm and 2am. Mostly cloudy, with a low around 37. North wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 37 °F

    Chance Rain

  • Monday

    Monday: Sunny, with a high near 54. North wind around 10 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. North northeast wind 3 to 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. East southeast wind around 6 mph.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 41. Light and variable wind becoming west northwest around 5 mph after midnight.

    Low: 41 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. West wind 5 to 13 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 76. Northeast wind around 6 mph becoming south in the afternoon.
Saturday Night
Mostly clear, with a low around 59. South southwest wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 82. South southwest wind 8 to 11 mph, with gusts as high as 23 mph.
Sunday Night
A chance of rain and thunderstorms before 11pm, then a chance of rain between 11pm and 2am. Mostly cloudy, with a low around 37. North wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Monday
Sunny, with a high near 54. North wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 35. North northeast wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 58. East southeast wind around 6 mph.
Tuesday Night
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 41. Light and variable wind becoming west northwest around 5 mph after midnight.
Wednesday
A 20 percent chance of rain before 2pm. Mostly cloudy, with a high near 59. East northeast wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 75.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.09°N 87.39°W (Elev. 499 ft)
Last Update:
5:15 pm EDT Mar 20, 2026
Forecast Valid:
5pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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