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.

Fog/Mist

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.22 in
Dewpoint 57°F (14°C)
Visibility 1.50 mi
Last update 14 Oct 10:15 pm CDT
Extended Forecast for

Sullivan IN

  • Tonight

    Tonight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming north northeast around 5 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Light east northeast wind.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74. East southeast wind around 6 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. East southeast wind 3 to 5 mph.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 76. South southeast wind 5 to 7 mph.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. South wind around 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely after 2pm. Partly sunny, with a high near 77. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 52. Southwest wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming north northeast around 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Light east northeast wind.
Thursday
Sunny, with a high near 74. East southeast wind around 6 mph.
Thursday Night
Mostly clear, with a low around 50. East southeast wind 3 to 5 mph.
Friday
Partly sunny, with a high near 76. South southeast wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 59. South wind around 7 mph.
Saturday
A chance of showers and thunderstorms, then showers likely after 2pm. Partly sunny, with a high near 77. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 52. Southwest wind 6 to 8 mph. Chance of precipitation is 70%.
Sunday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Mostly sunny, with a high near 66. West northwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 69.
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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:
11:15 pm EDT Oct 14, 2025
Forecast Valid:
11pm EDT Oct 14, 2025-6pm EDT Oct 21, 2025
 
Forecast Discussion
 
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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