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

75°F

24°C

Humidity 94%
Wind Speed S 3 mph
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 5.00 mi
Last update 5 Aug 8:15 pm CDT
Extended Forecast for

Sullivan IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: Scattered showers and thunderstorms before 11am, then scattered showers between 11am and 2pm, then scattered showers and thunderstorms after 2pm. Cloudy, with a high near 83. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 70. Light south southeast wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Partly Cloudy
    then
    Scattered
    Showers

  • Friday

    Friday: Scattered showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 86. South southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 70. South southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Saturday

    Saturday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 2pm. Partly sunny, with a high near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Light south wind.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87. Light south wind becoming south southwest 5 to 9 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. Calm wind.
Thursday
Scattered showers and thunderstorms before 11am, then scattered showers between 11am and 2pm, then scattered showers and thunderstorms after 2pm. Cloudy, with a high near 83. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Scattered showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 70. Light south southeast wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Scattered showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 86. South southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 70. South southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 2pm. Partly sunny, with a high near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 69. Light south wind.
Sunday
Mostly sunny, with a high near 87. Light south wind becoming south southwest 5 to 9 mph in the morning.
Sunday Night
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 73. South wind around 6 mph.
Monday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
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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:
9:15 pm EDT Aug 5, 2026
Forecast Valid:
9pm EDT Aug 5, 2026-6pm EDT Aug 12, 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