Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Overcast

32°F

0°C

Humidity	64%
Wind Speed	W 5 mph
Barometer	29.93 in (1015.6 mb)
Dewpoint	21°F (-6°C)
Visibility	10.00 mi
Wind Chill	27°F (-3°C)
Last update	8 Dec 7:53 pm MST

More Information:

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

Extended Forecast for

Mount Rushmore SD

Tonight
Low: 36 °F⇑
Mostly Cloudy
then Slight
Chance Snow
Tuesday
High: 49 °F⇓
Chance Rain
then Chance
Rain/Snow and
Breezy
Tuesday Night
Low: 28 °F
Partly Cloudy
and Blustery
then Partly
Cloudy
Wednesday
High: 43 °F
Snow Likely
then
Rain/Snow
Likely
Wednesday Night
Low: 41 °F
Rain Likely
Thursday
High: 43 °F⇓
Chance
Rain/Snow
Thursday Night
Low: 15 °F
Snow Likely
Friday
High: 21 °F
Chance Snow
Friday Night
Low: 13 °F
Chance Snow

Detailed Forecast

Tonight

A 10 percent chance of snow after 5am. Mostly cloudy, with a temperature rising to around 42 by 4am. West wind 6 to 15 mph, with gusts as high as 31 mph.

Tuesday

A chance of rain before 4pm, then a chance of rain and snow. Sunny, with a temperature rising to near 49 by 11am, then falling to around 38 during the remainder of the day. Breezy, with a west wind 16 to 24 mph, with gusts as high as 44 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday Night

Partly cloudy, with a low around 28. Wind chill values as low as 20. Blustery, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 45 mph.

Wednesday

Snow likely before 2pm, then rain and snow likely between 2pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 43. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain likely. Mostly cloudy, with a steady temperature around 41. Northwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

Thursday

A chance of rain and snow before noon, then a chance of rain between noon and 3pm, then a chance of rain and snow after 3pm. Mostly cloudy, with a temperature rising to near 43 by noon, then falling to around 37 during the remainder of the day. West wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 15. Northwest wind 3 to 6 mph. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

Friday

A chance of snow. Mostly cloudy, with a high near 21. Calm wind.

Friday Night

A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 13.

Saturday

Partly sunny, with a high near 33.

Saturday Night

Mostly cloudy, with a low around 19.

Sunday

Mostly sunny, with a high near 46.

Sunday Night

Partly cloudy, with a low around 29.