Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

30°F

-1°C

Humidity	100%
Wind Speed	N 5 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Wind Chill	25°F (-4°C)
Last update	11 Oct 05:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Tonight
Low: 31 °F
Wintry Mix
Columbus Day
High: 52 °F
Mostly Cloudy
then Chance
Showers
Monday Night
Low: 34 °F
Slight Chance
Showers then
Mostly Cloudy
Tuesday
High: 51 °F
Decreasing
Clouds
Tuesday Night
Low: 29 °F
Partly Cloudy
Wednesday
High: 55 °F
Sunny
Wednesday Night
Low: 31 °F
Mostly Clear
Thursday
High: 57 °F
Sunny
Thursday Night
Low: 31 °F
Mostly Clear

Detailed Forecast

Tonight

Rain showers and snow showers, possibly mixed with sleet before 2am, then a chance of rain and snow showers between 2am and 5am. Snow level 10000 feet lowering to 5900 feet after midnight . Low around 31. Northwest wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total nighttime snow and sleet accumulation of less than one inch possible.

Columbus Day

A 40 percent chance of showers, mainly between 1pm and 5pm. Snow level rising to 8800 feet in the afternoon. Mostly cloudy, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.

Monday Night

A 20 percent chance of showers before 7pm. Mostly cloudy, with a low around 34. Light and variable wind.

Tuesday

Cloudy, then gradually becoming mostly sunny, with a high near 51. North northwest wind 3 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 29. North northwest wind 5 to 7 mph becoming light and variable after midnight.

Wednesday

Sunny, with a high near 55. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 31. Southwest wind around 6 mph.

Thursday

Sunny, with a high near 57.