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September Climate Summary for Central and Western Wyoming

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

66°F

19°C

Humidity	34%
Wind Speed	SSW 5 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	03 Oct 12:15 PM MDT

More Information:

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

Extended Forecast for

Norris WY

This Afternoon
High: 63 °F
Isolated
T-storms and
Breezy
Tonight
Low: 34 °F
Scattered
Showers
Saturday
High: 45 °F
Showers
Saturday Night
Low: 25 °F
Rain/Snow
Likely then
Snow Showers
Sunday
High: 40 °F
Snow Showers
Sunday Night
Low: 18 °F
Chance Snow
Showers then
Mostly Cloudy
Monday
High: 47 °F
Sunny
Monday Night
Low: 19 °F
Mostly Clear
Tuesday
High: 54 °F
Sunny

Detailed Forecast

This Afternoon

Isolated showers and thunderstorms after 3pm. Mostly sunny, with a high near 63. Breezy, with a south southwest wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

Tonight

Scattered showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 34. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

Saturday

Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 10am. Snow level 10600 feet lowering to 8300 feet in the afternoon . High near 45. Light north wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Rain and snow showers likely before midnight, then snow showers. Snow level 8100 feet lowering to 7600 feet after midnight . Low around 25. North wind 6 to 11 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Snow showers. High near 40. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Sunday Night

A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 18. North wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 47. Light and variable wind.

Monday Night

Mostly clear, with a low around 19.

Tuesday

Sunny, with a high near 54.

Tuesday Night

Mostly clear, with a low around 24.

Wednesday

Sunny, with a high near 55.