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As of 14:59 MDT

Weather in Mammoth, WY

69°Current weather

Mammoth, Thursday, 8 October, 14:59

Clear. Feels like 67°. High 69°, low 33°.

Pressure29.97 inHg
Wind4.5 mph SW
Humidity22%
Visibility6.2 mi
Dew point29°
Fri, 0971° / 31°0Overcast
71 °Overcast

Mammoth, Friday, 9 October

Overcast. High 71°, low 31°.

Pressure29.77 inHg
Wind7.7 mph S
Humidity32%
Visibility6.2 mi
Dew point26°
Sat, 1051° / 32°0.11Light rain
51 °Light rain

Mammoth, Saturday, 10 October

Light rain. High 51°, low 32°.

Pressure29.62 inHg
Wind9.1 mph S
Humidity58%
Visibility6.2 mi
Dew point36°
Sun, 1138° / 26°1.01Snow
38 °Snow

Mammoth, Sunday, 11 October

Snow. High 38°, low 26°.

Pressure29.88 inHg
Wind2.6 mph NW
Humidity93%
Visibility2.0 mi
Dew point30°
Mon, 1238° / 24°0.18Snow
38 °Snow

Mammoth, Monday, 12 October

Snow. High 38°, low 24°.

Pressure29.91 inHg
Wind1 mph NE
Humidity85%
Visibility6.2 mi
Dew point31°
Tue, 1344° / 28°0.01Light rain
44 °Light rain

Mammoth, Tuesday, 13 October

Light rain. High 44°, low 28°.

Pressure29.94 inHg
Wind2.5 mph SE
Humidity81%
Visibility—
Dew point32°
Wed, 1435° / 28°0.42Snow
35 °Snow

Mammoth, Wednesday, 14 October

Snow. High 35°, low 28°.

Pressure29.80 inHg
Wind16.8 mph SW
Humidity100%
Visibility—
Dew point34°
Thu, 1529° / 11°0.05Light snow
29 °Light snow

Mammoth, Thursday, 15 October

Light snow. High 29°, low 11°.

Pressure30.42 inHg
Wind8.8 mph N
Humidity80%
Visibility—
Dew point22°
Fri, 1634° / 4°0Overcast
34 °Overcast

Mammoth, Friday, 16 October

Overcast. High 34°, low 4°.

Pressure30.65 inHg
Wind3.5 mph N
Humidity88%
Visibility—
Dew point20°
Sat, 1739° / 17°0Clear
39 °Clear

Mammoth, Saturday, 17 October

Clear. High 39°, low 17°.

Pressure30.33 inHg
Wind4.4 mph SE
Humidity99%
Visibility—
Dew point36°
Sun, 1841° / 30°0Light rain
41 °Light rain

Mammoth, Sunday, 18 October

Light rain. High 41°, low 30°.

Pressure30.12 inHg
Wind5.9 mph SE
Humidity99%
Visibility—
Dew point39°
Mon, 1938° / 30°0.14Light snow
38 °Light snow

Mammoth, Monday, 19 October

Light snow. High 38°, low 30°.

Pressure30.15 inHg
Wind4.1 mph SW
Humidity100%
Visibility—
Dew point37°
Tue, 2041° / 29°0Overcast
41 °Overcast

Mammoth, Tuesday, 20 October

Overcast. High 41°, low 29°.

Pressure30.27 inHg
Wind5.9 mph S
Humidity90%
Visibility—
Dew point35°
Wed, 2146° / 28°0Partly cloudy
46 °Partly cloudy

Mammoth, Wednesday, 21 October

Partly cloudy. High 46°, low 28°.

Pressure30.21 inHg
Wind5.3 mph S
Humidity75%
Visibility—
Dew point34°
Thu, 2249° / 29°0Clear
49 °Clear

Mammoth, Thursday, 22 October

Clear. High 49°, low 29°.

Pressure30.18 inHg
Wind4.7 mph S
Humidity65%
Visibility—
Dew point33°
Fri, 2351° / 32°0Overcast
51 °Overcast

Mammoth, Friday, 23 October

Overcast. High 51°, low 32°.

Pressure30.03 inHg
Wind6.2 mph SW
Humidity55%
Visibility—
Dew point31°

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.