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

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Mostly Cloudy

82°F

28°C

Humidity 55%
Wind Speed Vrbl 6 mph
Barometer 30.00 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 27 Aug 12:35 pm CDT
Extended Forecast for

Sullivan IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. North northwest wind around 6 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 91. Light south southeast wind becoming south southwest 5 to 9 mph in the morning.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind 5 to 8 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 93. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 93 °F

    Hot

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. North northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 84. Calm wind becoming north northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 87. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 64. Calm wind.
Sunday
Sunny and hot, with a high near 91. Light south southeast wind becoming south southwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 70. South wind 5 to 8 mph.
Monday
Sunny and hot, with a high near 93. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 73. South wind 5 to 7 mph.
Tuesday
Mostly sunny and hot, with a high near 94.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 74.
Wednesday
A 10 percent chance of showers. Sunny and hot, with a high near 94.
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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:
1:45 pm EDT Aug 27, 2026
Forecast Valid:
1pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

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Chance of Precipitation