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 >

Hazardous Weather Conditions

High Wind Warning in effect from December 9, 08:00 AM MST until December 10, 02:00 AM MST

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05° N Lon: 103.05° W Elev: 3202 ft.

Fair

46°F

8°C

Humidity	42%
Wind Speed	NW 10 mph
Barometer	29.94 in (1016.0 mb)
Dewpoint	24°F (-4°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	8 Dec 3:52 pm MST

More Information:

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

Detailed forecast for

Pennington Co Plains

Late This Afternoon

Mostly cloudy. Highs in the lower 50s. West winds 10 to 15 mph with gusts up to 30 mph.

Tonight

Mostly cloudy. Lows in the lower 30s. Southwest winds 10 to 20 mph with gusts up to 30 mph.

Tuesday

Mostly cloudy with a slight chance of rain in the morning, then partly cloudy with a chance of rain in the afternoon. Strong winds with highs in the upper 50s. Southwest winds 20 to 30 mph with gusts up to 50 mph, increasing to northwest 35 to 50 mph with gusts up to 65 mph in the afternoon. Chance of rain 30 percent.

Tuesday Night

Partly cloudy and windy. Lows in the upper 20s. Northwest winds 25 to 40 mph with gusts up to 60 mph, diminishing to 15 to 25 mph with gusts up to 45 mph after midnight.

Wednesday

Mostly cloudy. A chance of rain and snow in the afternoon. Little or no snow accumulation. Highs in the lower 40s. West winds 10 to 15 mph, becoming south in the afternoon. Gusts up to 25 mph. Chance of precipitation 50 percent.

Wednesday Night

Cloudy with a chance of rain and snow. Lows in the upper 20s. South winds 10 to 15 mph, becoming west after midnight. Gusts up to 25 mph. Chance of precipitation 50 percent.

Thursday

Mostly cloudy with a 50 percent chance of rain. Highs in the mid 40s.

Thursday Night

A chance of rain in the evening. Cloudy with a chance of snow. Breezy, cooler with lows 5 to 10 above. Chance of precipitation 50 percent.

Friday

Mostly cloudy with a 50 percent chance of snow. Much cooler with highs 15 to 20.

Friday Night

Cloudy with a 40 percent chance of snow. Lows 5 to 10 above.

Saturday

Mostly cloudy. A slight chance of snow in the morning. Highs in the lower 20s. Chance of snow 20 percent.

Saturday Night

Becoming partly cloudy. Lows 5 to 10 above.