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Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Ottawa Municipal Airport (KOWI)

Lat: 38.54°NLon: 95.25°WElev: 958ft.

Thunderstorm

59°F

15°C

Humidity 100%
Wind Speed NW 13 mph
Barometer 29.88 in
Dewpoint 59°F (15°C)
Visibility NA
Last update 19 May 3:15 am CDT
Extended Forecast for

Rantoul KS

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe. Cloudy, with a low around 55. Southwest wind around 10 mph becoming west. Chance of precipitation is 70%.

    Low: 55 °F

    Severe
    Thunderstorms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Some of the storms could be severe. Cloudy, with a high near 64. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Severe
    Thunderstorms
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 48. North wind 5 to 10 mph.

    Low: 48 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. East wind 5 to 10 mph.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 66. East wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 55. East wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 74. Northeast wind 5 to 10 mph.

    High: 74 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe. Cloudy, with a low around 55. Southwest wind around 10 mph becoming west. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Some of the storms could be severe. Cloudy, with a high near 64. North wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 48. North wind 5 to 10 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. East wind 5 to 10 mph.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 66. East wind 5 to 10 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 55. East wind 5 to 10 mph. Chance of precipitation is 80%.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 74. Northeast wind 5 to 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 78.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Memorial Day
Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rantoul KS
 38.55°N 95.11°W
Last Update:
2:36 am CDT May 19, 2026
Forecast Valid:
3am CDT May 19, 2026-6pm CDT May 25, 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