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.

A Few Clouds

81°F

27°C

Humidity 70%
Wind Speed S 20 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 17 May 12:15 pm CDT
Extended Forecast for

Sullivan IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. South wind 14 to 16 mph, with gusts as high as 22 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. South wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 86. South wind 10 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before midnight, then a chance of showers. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. South southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Chance
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 62. Southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 72. North wind around 9 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 51. North northeast wind around 9 mph.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Partly sunny, with a high near 71. East northeast wind around 9 mph.

    High: 71 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. South wind 14 to 16 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 66. South wind 7 to 11 mph, with gusts as high as 18 mph.
Monday
Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 86. South wind 10 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before midnight, then a chance of showers. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. South southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 62. Southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 72. North wind around 9 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 51. North northeast wind around 9 mph.
Thursday
A 20 percent chance of showers before 2pm. Partly sunny, with a high near 71. East northeast wind around 9 mph.
Thursday Night
Mostly cloudy, with a low around 54. East northeast wind 6 to 8 mph.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 75.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
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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:
1:15 pm EDT May 17, 2026
Forecast Valid:
1pm EDT May 17, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation