Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mondell Field (KECS)

Lat: 43.89°NLon: 104.32°WElev: 4173ft.

Overcast

32°F

0°C

Humidity	87%
Wind Speed	NW 13 G 18 mph
Barometer	30.06 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	22°F (-6°C)
Last update	9 Dec 10:15 pm MST

More Information:

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

Extended Forecast for

15 Miles SE Newcastle WY

Tonight
Low: 29 °F
Partly Cloudy
and Blustery
then Partly
Cloudy
Wednesday
High: 41 °F
Chance Snow
then Chance
Rain/Snow
Wednesday Night
Low: 36 °F⇑
Chance Rain
Thursday
High: 52 °F
Partly Sunny
Thursday Night
Low: 26 °F
Chance
Rain/Snow
then Chance
Snow
Friday
High: 28 °F
Chance Snow
Friday Night
Low: 18 °F
Slight Chance
Snow
Saturday
High: 26 °F
Slight Chance
Snow then
Mostly Sunny
Saturday Night
Low: 15 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a steady temperature around 29. Wind chill values as low as 16. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 38 mph.

Wednesday

A chance of snow before 3pm, then a chance of rain and snow between 3pm and 4pm, then a chance of rain after 4pm. Cloudy, with a high near 41. Wind chill values as low as 17. Northwest wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 30%.

Wednesday Night

A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a temperature rising to around 42 by 4am. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

Thursday

Partly sunny, with a high near 52. Northwest wind 10 to 14 mph, with gusts as high as 28 mph.

Thursday Night

A chance of rain before 9pm, then a chance of rain and snow between 9pm and 10pm, then a chance of snow after 10pm. Mostly cloudy, with a low around 26. Northwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow. Cloudy, with a high near 28. West wind around 8 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. New snow accumulation of less than a half inch possible.

Friday Night

A 20 percent chance of snow. Mostly cloudy, with a low around 18. Southeast wind around 7 mph becoming north after midnight.

Saturday

A slight chance of snow before 11am. Partly sunny, with a high near 26. Northwest wind around 8 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

Saturday Night

Partly cloudy, with a low around 15.

Sunday

Mostly sunny, with a high near 42.

Sunday Night

Partly cloudy, with a low around 29.

Monday

Mostly sunny, with a high near 44.

Monday Night

Partly cloudy, with a low around 31.

Tuesday

Mostly sunny, with a high near 46.