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Hazardous Weather Conditions

Current conditions at

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed S 7 mph
Barometer 30.05 in
Dewpoint 68°F (20°C)
Visibility 4.00 mi
Last update 9 Aug 5:15 am CDT
Extended Forecast for

Sullivan IN

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Heat index values as high as 101. Light south southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 73. South wind around 8 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 105. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 10%.

    High: 93 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 75. South southwest wind 6 to 8 mph.

    Low: 75 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny and hot, with a high near 92. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 92 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 74. South southwest wind 5 to 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Partly sunny, with a high near 89. West southwest wind around 8 mph. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 84 °F

    Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Heat index values as high as 101. Light south southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 73. South wind around 8 mph.
Monday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 105. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 10%.
Monday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 75. South southwest wind 6 to 8 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny and hot, with a high near 92. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 74. South southwest wind 5 to 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Partly sunny, with a high near 89. West southwest wind around 8 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 66. Northeast wind 3 to 6 mph. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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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:
6:15 am EDT Aug 9, 2026
Forecast Valid:
6am EDT Aug 9, 2026-6pm EDT Aug 15, 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