Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Hazardous Weather Conditions

High Wind Watch in effect from December 17, 11:00 AM MST until December 18, 05:00 AM MST

Current conditions at

BIG SHEEP MOUNTAIN (LCFM8)

Lat: 47.02819°NLon: 105.80472°WElev: 3172.0ft.

46°F

8°C

Humidity	44%
Wind Speed	WSW 16 MPH
Barometer	NA
Dewpoint	25°F (-4°C)
Visibility	NA
Wind Chill	39°F (4°C)
Last update	15 Dec 05:08 PM MST

More Information:

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

Extended Forecast for

10 Miles NW Rock Springs MT

High Wind Watch December 17, 11:00am until December 18, 05:00am

Click here for hazard details and duration

High Wind Watch

Tonight
Low: 38 °F
Mostly Cloudy
and Breezy
Tuesday
High: 42 °F⇓
Mostly Sunny
and Breezy
then Mostly
Sunny
Tuesday Night
Low: 35 °F
Slight Chance
Rain then
Mostly Cloudy
Wednesday
High: 46 °F
Chance Rain
and Breezy
then Chance
Rain/Snow and
Windy
Wednesday Night
Low: 10 °F
Windy. Slight
Chance Snow
then Mostly
Cloudy
Thursday
High: 33 °F
Mostly Sunny
Thursday Night
Low: 25 °F
Chance Snow
then Chance
Rain/Snow
Friday
High: 46 °F
Chance Rain
then Chance
Rain/Snow
Friday Night
Low: 16 °F
Chance Snow

Detailed Forecast

Tonight

Mostly cloudy, with a low around 38. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 36 mph.

Tuesday

Mostly sunny, with a temperature rising to near 42 by noon, then falling to around 34 during the remainder of the day. Breezy, with a west wind 19 to 24 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 34 mph.

Tuesday Night

A 20 percent chance of rain before 11pm. Mostly cloudy, with a steady temperature around 35. South southwest wind 9 to 17 mph, with gusts as high as 24 mph.

Wednesday

A chance of rain before 2pm, then a chance of snow. Mostly cloudy, with a high near 46. Windy, with a south southwest wind 17 to 27 mph becoming west 27 to 37 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 10. Windy, with a northwest wind 33 to 38 mph decreasing to 23 to 28 mph after midnight. Winds could gust as high as 50 mph.

Thursday

Mostly sunny, with a high near 33. North northwest wind around 10 mph becoming south in the morning.

Thursday Night

A chance of snow before 2am, then a chance of rain. Mostly cloudy, with a low around 25. South wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday

A chance of rain before 2pm, then a chance of snow. Mostly cloudy, with a high near 46. West wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Friday Night

A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 16. Northwest wind around 11 mph, with gusts as high as 18 mph.

Saturday

Mostly sunny, with a high near 35. West wind 9 to 11 mph.

Saturday Night

Partly cloudy, with a low around 18. West southwest wind 8 to 10 mph.

Sunday

Mostly sunny, with a high near 34.

Sunday Night

A slight chance of snow. Mostly cloudy, with a low around 14.

Monday

A slight chance of snow. Partly sunny, with a high near 31.