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

48°F

9°C

Humidity 54%
Wind Speed N 9 mph
Barometer 30.26 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 Apr 12:35 am CDT
Extended Forecast for

Sullivan IN

Frost Advisory April 20, 02:00am until April 20, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 35. North northeast wind around 5 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Southwest wind 8 to 14 mph, with gusts as high as 30 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Isolated showers and thunderstorms. Mostly clear, with a low around 57. Southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. West southwest wind 7 to 9 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. South southwest wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 63. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 35. North northeast wind around 5 mph.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 62. Light and variable wind.
Monday Night
Mostly clear, with a low around 45. Calm wind becoming south southeast around 6 mph after midnight.
Tuesday
Mostly sunny, with a high near 76. Southwest wind 8 to 14 mph, with gusts as high as 30 mph.
Tuesday Night
Isolated showers and thunderstorms. Mostly clear, with a low around 57. Southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 78. West southwest wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind around 6 mph.
Thursday
Sunny, with a high near 80. South southwest wind 7 to 15 mph, with gusts as high as 26 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 63. South wind around 11 mph, with gusts as high as 22 mph.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 77. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms. Low around 53. Chance of precipitation is 80%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 70.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 70.
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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:
1:15 am EDT Apr 20, 2026
Forecast Valid:
1am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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