Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

31°F

-1°C

Humidity	56%
Wind Speed	W 10 mph
Barometer	29.95 in (1017.4 mb)
Dewpoint	17°F (-8°C)
Visibility	10.00 mi
Wind Chill	22°F (-6°C)
Last update	8 Dec 7:53 am MST

More Information:

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

Extended Forecast for

4 Miles NNE Keystone SD

Today
High: 44 °F
Slight Chance
Snow then
Partly Sunny
Tonight
Low: 30 °F
Mostly Cloudy
Tuesday
High: 52 °F
Chance Rain
then Chance
Rain/Snow and
Breezy
Tuesday Night
Low: 27 °F
Slight Chance
Snow then
Mostly Cloudy
Wednesday
High: 41 °F
Snow Likely
then
Rain/Snow
Likely
Wednesday Night
Low: 30 °F
Rain Likely
then Chance
Rain/Snow
Thursday
High: 37 °F
Chance Snow
Thursday Night
Low: 11 °F
Snow Likely
Friday
High: 18 °F
Chance Snow

Detailed Forecast

Today

A 20 percent chance of snow before 9am. Mostly sunny, with a high near 44. Northwest wind 7 to 10 mph, with gusts as high as 30 mph.

Tonight

Mostly cloudy, with a low around 30. West wind 6 to 11 mph, with gusts as high as 23 mph.

Tuesday

A chance of rain after 11am, mixing with snow after 4pm. Mostly sunny, with a high near 52. Breezy, with a west wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

Tuesday Night

A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.

Wednesday

Snow likely before 3pm, then rain and snow likely. Mostly cloudy, with a high near 41. South wind 5 to 7 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Northwest wind 7 to 9 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday

A 50 percent chance of snow. Mostly cloudy, with a high near 37. Northwest wind around 8 mph, with gusts as high as 23 mph.

Thursday Night

Snow likely. Mostly cloudy, with a low around 11. Northwest wind around 6 mph, with gusts as high as 17 mph.

Friday

A chance of snow. Mostly cloudy, with a high near 18.

Friday Night

A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 8.

Saturday

A slight chance of snow. Partly sunny, with a high near 30.

Saturday Night

Partly cloudy, with a low around 16.