Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

96°F

36°C

Humidity	40%
Wind Speed	S 17 G 31 mph
Barometer	29.48 in (997.6 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	101°F (38°C)
Last update	21 Jun 1:56 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Niobrara NE

Extreme Heat Warning June 21, 02:49pm until June 22, 07:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning June 21, 02:49pm until June 22, 07:00pm
NOW until 7:00pm Sun
Extreme Heat Warning
This Afternoon
High: 106 °F
Hot
Tonight
Low: 83 °F
Mostly Clear
Sunday
High: 104 °F
Breezy. Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 66 °F
T-storms
Likely then
Showers
Likely
Monday
High: 80 °F
Slight Chance
T-storms
Monday Night
Low: 63 °F
Chance
T-storms
Tuesday
High: 78 °F
Showers
Likely
Tuesday Night
Low: 66 °F
T-storms

Detailed Forecast

This Afternoon

Sunny and hot, with a high near 106. Heat index values as high as 109. South southwest wind around 17 mph, with gusts as high as 26 mph.

Tonight

Mostly clear, with a low around 83. South wind 13 to 16 mph, with gusts as high as 26 mph.

Sunday

A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 104. Heat index values as high as 109. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 32 mph.

Sunday Night

Showers and thunderstorms likely, mainly between 7pm and 10pm, then showers likely and possibly a thunderstorm after 10pm. Increasing clouds, with a low around 66. South wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. North northwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Monday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. East northeast wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. East wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 70%.

Tuesday Night

Showers and possibly a thunderstorm. Cloudy, with a low around 66. East wind 6 to 9 mph.

Wednesday

Showers and possibly a thunderstorm. Cloudy, with a high near 81. South wind 6 to 10 mph, with gusts as high as 16 mph.

Wednesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South wind 6 to 8 mph becoming north in the evening.

Thursday

A slight chance of showers and thunderstorms. Partly sunny, with a high near 82. Northwest wind 6 to 8 mph.

Thursday Night

Partly cloudy, with a low around 64. North wind 5 to 7 mph becoming light and variable after midnight.

Friday

Mostly sunny, with a high near 88. South wind 5 to 11 mph, with gusts as high as 17 mph.