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.

Overcast

63°F

17°C

Humidity 100%
Wind Speed E 2 mph
Barometer 29.94 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Jun 4:35 am CDT
Extended Forecast for

Sullivan IN

Flood Watch June 21, 02:00pm until June 22, 08:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 83. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Partly Sunny
    then Heavy
    Rain

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 3am, then scattered showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall. Low around 66. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 66 °F

    Heavy Rain
    then Showers
    Likely

  • Monday

    Monday: Scattered showers, mainly before 9am. Mostly cloudy, with a high near 77. West northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 77 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy during the early evening, then gradual clearing, with a low around 58. North wind 5 to 8 mph.

    Low: 58 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 80. Light north northeast wind.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 83. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 3am, then scattered showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall. Low around 66. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Scattered showers, mainly before 9am. Mostly cloudy, with a high near 77. West northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Cloudy during the early evening, then gradual clearing, with a low around 58. North wind 5 to 8 mph.
Tuesday
Sunny, with a high near 80. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 60. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 81. Light and variable wind.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 62. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.09°N 87.39°W (Elev. 499 ft)
Last Update:
5:45 am EDT Jun 21, 2026
Forecast Valid:
5am EDT Jun 21, 2026-6pm EDT Jun 27, 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