National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed S 6 mph
Barometer 29.66 in
Dewpoint 72°F (22°C)
Visibility 2.00 mi
Last update 1 Aug 9:15 am CDT
Extended Forecast for

Sullivan IN

  • Today

    Today: Scattered showers and thunderstorms. Mostly cloudy, with a high near 77. South southeast wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Cloudy, with a high near 77. North wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. North wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 79. North wind around 7 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. North wind 3 to 5 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Light north northeast wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly cloudy, with a high near 77. South southeast wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Cloudy, with a high near 77. North wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. North wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 79. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. North wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 66. Light north northeast wind.
Wednesday
Mostly sunny, with a high near 84. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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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:
10:15 am EDT Aug 1, 2026
Forecast Valid:
10am EDT Aug 1, 2026-6pm EDT Aug 7, 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