As of 04:54 MDT

Weather in Mammoth, WY

34°

Mammoth, Thursday, 8 October, 04:54

Clear. Feels like 34°. High 71°, low 34°.

Pressure30.15 inHg

Wind1.7 mph SE

Humidity69%

Visibility6.2 mi

Dew point26°

See detailed hourly forecast

Fri, 0971° / 31°

71 °

Mammoth, Friday, 9 October

Partly cloudy. High 71°, low 31°.

Pressure29.77 inHg

Wind7.6 mph S

Humidity31%

Visibility6.2 mi

Dew point25°

Sat, 1050° / 34°

0.1

50 °

Mammoth, Saturday, 10 October

Light rain. High 50°, low 34°.

Pressure29.62 inHg

Wind7.8 mph S

Humidity66%

Visibility6.2 mi

Dew point37°

Sun, 1138° / 23°

1.15

38 °

Mammoth, Sunday, 11 October

Snow. High 38°, low 23°.

Pressure29.88 inHg

Wind5.3 mph NW

Humidity97%

Visibility1.1 mi

Dew point30°

Mon, 1240° / 21°

0.46

40 °

Mammoth, Monday, 12 October

Snow. High 40°, low 21°.

Pressure30.00 inHg

Wind5.2 mph NW

Humidity93%

Visibility—

Dew point26°

Tue, 1343° / 19°

43 °

Mammoth, Tuesday, 13 October

Overcast. High 43°, low 19°.

Pressure29.91 inHg

Wind4 mph SE

Humidity72%

Visibility—

Dew point25°

Wed, 1442° / 26°

0.07

42 °

Mammoth, Wednesday, 14 October

Snow. High 42°, low 26°.

Pressure29.53 inHg

Wind14.9 mph SW

Humidity88%

Visibility—

Dew point38°

Thu, 1532° / 26°

0.16

32 °

Mammoth, Thursday, 15 October

Light snow. High 32°, low 26°.

Pressure30.15 inHg

Wind7.8 mph NW

Humidity81%

Visibility—

Dew point26°

Fri, 1644° / 22°

44 °

Mammoth, Friday, 16 October

Partly cloudy. High 44°, low 22°.

Pressure30.36 inHg

Wind3.7 mph SW

Humidity67%

Visibility—

Dew point26°

Sat, 1749° / 26°

49 °

Mammoth, Saturday, 17 October

Clear. High 49°, low 26°.

Pressure30.21 inHg

Wind5.7 mph S

Humidity60%

Visibility—

Dew point28°

Sun, 1853° / 29°

53 °

Mammoth, Sunday, 18 October

Mostly clear. High 53°, low 29°.

Pressure30.15 inHg

Wind5.9 mph S

Humidity46%

Visibility—

Dew point26°

Mon, 1953° / 32°

53 °

Mammoth, Monday, 19 October

Overcast. High 53°, low 32°.

Pressure30.15 inHg

Wind5.2 mph S

Humidity44%

Visibility—

Dew point26°

Tue, 2054° / 33°

54 °

Mammoth, Tuesday, 20 October

Clear. High 54°, low 33°.

Pressure30.12 inHg

Wind10.2 mph SW

Humidity38%

Visibility—

Dew point24°

Wed, 2144° / 35°

0.42

44 °

Mammoth, Wednesday, 21 October

Snow. High 44°, low 35°.

Pressure29.62 inHg

Wind18.4 mph SW

Humidity53%

Visibility—

Dew point28°

Thu, 2238° / 27°

0.31

38 °

Mammoth, Thursday, 22 October

Snow. High 38°, low 27°.

Pressure29.62 inHg

Wind11.3 mph SW

Humidity83%

Visibility—

Dew point28°

Fri, 2339° / 30°

0.11

39 °

Mammoth, Friday, 23 October

Snow. High 39°, low 30°.

Pressure29.74 inHg

Wind13.2 mph SW

Humidity78%

Visibility—

Dew point28°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mammoth, WY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Mammoth, WY since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.