Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Mostly Cloudy

32°F

0°C

Humidity	69%
Wind Speed	N 0 MPH
Barometer	30.2 in (1022.69 mb)
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Last update	31 Dec 01:55 PM PST

More Information:

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

Extended Forecast for

12 Miles E Mammoth Lakes CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am

Winter Weather Advisory December 31, 04:00pm until January 1, 12:00pm

Click here for hazard details and duration

Winter Storm Watch

Winter Weather Advisory

This Afternoon
High: 44 °F
Rain Likely
Tonight
Low: 27 °F
Wintry Mix
New Year's Day
High: 42 °F
Wintry Mix
Thursday Night
Low: 19 °F
Chance
Rain/Snow
then Partly
Cloudy
Friday
High: 46 °F
Mostly Sunny
Friday Night
Low: 22 °F
Chance
Rain/Snow
Saturday
High: 44 °F
Rain/Snow
Saturday Night
Low: 23 °F
Rain/Snow
Sunday
High: 42 °F
Rain/Snow

Detailed Forecast

This Afternoon

Rain likely. Snow level 9200 feet. Cloudy, with a high near 44. Calm wind. Chance of precipitation is 60%.

Tonight

Rain, snow, and freezing rain before 1am, then rain and snow likely between 1am and 4am, then a chance of rain or freezing rain after 4am. Snow level 8700 feet. Low around 27. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.

New Year's Day

Rain, snow, and freezing rain before 1pm, then rain likely between 1pm and 4pm, then a chance of rain and snow after 4pm. Snow level 8400 feet lowering to 7700 feet in the afternoon . High near 42. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday Night

A chance of rain and snow before 7pm, then a chance of snow between 7pm and 10pm. Partly cloudy, with a low around 19. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday

Mostly sunny, with a high near 46. Calm wind becoming south around 5 mph in the afternoon.

Friday Night

A chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Snow level 7000 feet. Mostly cloudy, with a low around 22. South wind around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Saturday

A chance of snow before 7am, then rain and snow between 7am and 1pm, then rain after 1pm. Snow level 7000 feet rising to 7800 feet in the afternoon. High near 44. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday Night

Rain before 7pm, then rain and snow between 7pm and 1am, then snow after 1am. Snow level 7200 feet. Mostly cloudy, with a low around 23.

Sunday

Snow likely before 10am, then rain and snow. Snow level 6800 feet. Cloudy, with a high near 42.

Sunday Night

Snow. Mostly cloudy, with a low around 19.

Monday

Snow likely. Mostly cloudy, with a high near 41.

Monday Night

Snow likely. Mostly cloudy, with a low around 17.

Tuesday

A chance of snow. Partly sunny, with a high near 40.