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

Dangerous Fire Conditions in the Southern High Plains; Severe Weather in the Central Plains and Upper Midwest; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected in the central Plains into the Upper Midwest. Heavy late-season snow and record cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Thunderstorm in Vicinity Light Rain

62°F

17°C

Humidity 96%
Wind Speed NW 12 mph
Barometer 29.51 in (1000.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 May 4:56 pm CDT
Extended Forecast for

Hartington NE

Tornado Watch May 17, 05:23pm until May 17, 10:00pm
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch May 17, 05:23pm until May 17, 10:00pm

    NOW until 10:00pm Sun

    Tornado Watch

  • This Afternoon

    High: 78 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Severe
    Thunderstorms
    and Breezy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Cloudy, with a high near 59. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers, mainly before 11pm. Low around 38. Breezy, with a north northwest wind 17 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Breezy.
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. South southeast wind around 9 mph, with gusts as high as 17 mph.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 78. Breezy, with a west southwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Cloudy, with a high near 59. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers, mainly before 11pm. Low around 38. Breezy, with a north northwest wind 17 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Partly sunny, with a high near 58. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly clear, with a low around 34. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Wednesday
Partly sunny, with a high near 65. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 42. South southeast wind around 9 mph, with gusts as high as 17 mph.
Thursday
Mostly cloudy, with a high near 69. South wind 11 to 17 mph, with gusts as high as 28 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. South southeast wind 9 to 15 mph, with gusts as high as 22 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 73. South wind 8 to 14 mph, with gusts as high as 23 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 49. South wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 80. South southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. South southeast wind around 9 mph, with gusts as high as 16 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 88. Breezy, with a south wind 9 to 18 mph, with gusts as high as 28 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hartington NE
 42.62°N 97.27°W (Elev. 1450 ft)
Last Update:
4:35 pm CDT May 17, 2026
Forecast Valid:
5pm CDT May 17, 2026-6pm CDT May 24, 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