Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

12°F

-11°C

Humidity	92%
Wind Speed	Calm
Barometer	29.95 in (1017.4 mb)
Dewpoint	10°F (-12°C)
Visibility	NA
Last update	25 Dec 2:56 am EST

More Information:

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

Extended Forecast for

3 Miles W Katahdin Iron Works State Park ME

Overnight
Low: 8 °F
Snow Likely
Christmas Day
High: 24 °F
Snow Likely
then Mostly
Cloudy
Thursday Night
Low: 1 °F
Patchy
Blowing Snow
and Blustery
Friday
High: 11 °F
Patchy
Blowing Snow
then Sunny
Friday Night
Low: -2 °F
Partly Cloudy
Saturday
High: 14 °F
Sunny
Saturday Night
Low: 4 °F
Mostly Clear
Sunday
High: 26 °F
Sunny
Sunday Night
Low: 13 °F
Partly Cloudy
then Chance
Snow

Detailed Forecast

Overnight

Snow likely. Cloudy, with a low around 8. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

Christmas Day

Snow likely, mainly before 8am. Mostly cloudy, with a high near 24. Light and variable wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

Patchy blowing snow. Partly cloudy, with a low around 1. Wind chill values as low as -19. Blustery, with a northwest wind 18 to 21 mph, with gusts as high as 36 mph.

Friday

Patchy blowing snow before 8am. Sunny, with a high near 11. Wind chill values as low as -19. Northwest wind 8 to 15 mph, with gusts as high as 28 mph.

Friday Night

Partly cloudy, with a low around -2. North wind 3 to 6 mph.

Saturday

Sunny, with a high near 14. North wind around 5 mph.

Saturday Night

Mostly clear, with a low around 4. Northwest wind around 6 mph.

Sunday

Sunny, with a high near 26.

Sunday Night

A chance of snow, mainly after 3am. Mostly cloudy, with a low around 13. Chance of precipitation is 30%.

Monday

Snow, mainly after 8am. High near 29. Chance of precipitation is 90%.