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

73°F

23°C

Humidity 57%
Wind Speed N 7 mph
Barometer 30.18 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Jun 11:35 am CDT
Extended Forecast for

Sullivan IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. North wind around 6 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 64. South wind 3 to 5 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 66. Light south southeast wind. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 66 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 81. South southwest wind 3 to 6 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 85. Southwest wind 5 to 7 mph.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 79. North wind around 6 mph.
Tonight
Partly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 64. South wind 3 to 5 mph.
Thursday
A chance of showers before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 66. Light south southeast wind. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers and possibly a thunderstorm. High near 81. South southwest wind 3 to 6 mph. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 85. Southwest wind 5 to 7 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny and hot, with a high near 92.
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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:
12:46 pm EDT Jun 23, 2026
Forecast Valid:
12pm EDT Jun 23, 2026-6pm EDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation