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.

Fair

27°F

-3°C

Humidity 100%
Wind Speed Calm
Barometer 30.26 in
Dewpoint 27°F (-3°C)
Visibility 9.00 mi
Last update 13 Feb 12:35 am CST
Extended Forecast for

Sullivan IN

  • Overnight

    Overnight: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Calm wind becoming south 5 to 9 mph in the morning.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 32. Light south wind.

    Low: 32 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 41. East southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Sunday

    Sunday: A 30 percent chance of rain before 1pm. Partly sunny, with a high near 55. East northeast wind around 7 mph.

    High: 55 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind 3 to 5 mph.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 27. Calm wind.
Friday
Sunny, with a high near 54. Calm wind becoming south 5 to 9 mph in the morning.
Friday Night
Increasing clouds, with a low around 32. Light south wind.
Saturday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Rain. Low around 41. East southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 55. East northeast wind around 7 mph.
Sunday Night
Mostly clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 41. South wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 67.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 45.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IN
 39.1°N 87.41°W (Elev. 502 ft)
Last Update:
1:45 am EST Feb 13, 2026
Forecast Valid:
1am EST Feb 13, 2026-6pm EST Feb 19, 2026
 
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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