Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Light Rain

69°F

21°C

Humidity	93%
Wind Speed	W 15 mph
Barometer	29.86 in (1011.3 mb)
Dewpoint	67°F (19°C)
Visibility	9.00 mi
Last update	31 Jul 4:56 am CDT

More Information:

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

Extended Forecast for

Saint Helena NE

Today
High: 78 °F
Windy. Slight
Chance
Showers then
Partly Sunny
Tonight
Low: 60 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Saturday
High: 83 °F
Mostly Sunny
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 86 °F
Sunny
Sunday Night
Low: 66 °F
Mostly Clear
Monday
High: 89 °F
Sunny then
Sunny and
Breezy
Monday Night
Low: 66 °F
Clear then
Slight Chance
T-storms
Tuesday
High: 76 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Today

A slight chance of showers between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 78. Windy, with a north wind 20 to 29 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

Tonight

Partly cloudy, with a low around 60. Breezy, with a north northeast wind 15 to 20 mph becoming north northwest 7 to 12 mph after midnight. Winds could gust as high as 30 mph.

Saturday

Mostly sunny, with a high near 83. North wind 8 to 11 mph, with gusts as high as 20 mph.

Saturday Night

Mostly clear, with a low around 61. North northeast wind around 6 mph becoming calm in the evening.

Sunday

Sunny, with a high near 86. Light south wind becoming south southeast 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

Sunday Night

Mostly clear, with a low around 66. South southeast wind around 14 mph, with gusts as high as 23 mph.

Monday

Sunny, with a high near 89. Breezy, with a south southeast wind 14 to 20 mph, with gusts as high as 29 mph.

Monday Night

A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 66. South southeast wind 10 to 17 mph, with gusts as high as 26 mph.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. West southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

Tuesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. North wind 5 to 10 mph, with gusts as high as 16 mph.

Wednesday

A chance of showers. Mostly cloudy, with a high near 76. East northeast wind 5 to 9 mph, with gusts as high as 17 mph.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 61. East wind 7 to 9 mph.

Thursday

Mostly sunny, with a high near 83. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.