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.

Partly Cloudy

34°F

1°C

Humidity 93%
Wind Speed SE 3 mph
Barometer 30.36 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 29 Mar 2:15 am CDT
Extended Forecast for

Sullivan IN

  • Overnight

    Overnight: Partly cloudy, with a low around 36. South southeast wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. South southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. South wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Decreasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 76. South southwest wind 10 to 17 mph, with gusts as high as 32 mph.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. South southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms after 2pm. Partly sunny, with a high near 81. Breezy, with a south southwest wind 15 to 22 mph becoming north northeast in the morning. Winds could gust as high as 39 mph.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Chance
    T-storms then
    Rain Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 61. North northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 61 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm before 8pm, then a chance of rain and thunderstorms between 8pm and 2am, then rain likely and possibly a thunderstorm after 2am. Cloudy, with a low around 48. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. South southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 66. South southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. South wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Partly sunny, with a high near 76. South southwest wind 10 to 17 mph, with gusts as high as 32 mph.
Monday Night
Partly cloudy, with a low around 63. South southwest wind around 14 mph, with gusts as high as 25 mph.
Tuesday
A 30 percent chance of rain and thunderstorms after 2pm. Partly sunny, with a high near 81. Breezy, with a south southwest wind 15 to 22 mph becoming north northeast in the morning. Winds could gust as high as 39 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Wednesday
Rain and possibly a thunderstorm. High near 61. North northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm before 8pm, then a chance of rain and thunderstorms between 8pm and 2am, then rain likely and possibly a thunderstorm after 2am. Cloudy, with a low around 48. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 66. East southeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Thursday Night
Rain likely. Cloudy, with a low around 49. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 72.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 57.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.1°N 87.41°W (Elev. 502 ft)
Last Update:
2:45 am EDT Mar 29, 2026
Forecast Valid:
3am EDT Mar 29, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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