As of 03:26 MDT

Weather in Mammoth, UT

41°

Mammoth, Tuesday, 13 October, 03:26

Light rain. Feels like 34°. High 41°, low 37°.

Pressure29.85 inHg

Wind10 mph S

Humidity86%

Visibility5.7 mi

Dew point37°

See detailed hourly forecast

Wed, 1445° / 36°

45 °

Mammoth, Wednesday, 14 October

Overcast. High 45°, low 36°.

Pressure30.12 inHg

Wind10.3 mph NW

Humidity60%

Visibility6.2 mi

Dew point33°

Thu, 1556° / 35°

56 °

Mammoth, Thursday, 15 October

Clear. High 56°, low 35°.

Pressure30.45 inHg

Wind6.2 mph N

Humidity52%

Visibility6.2 mi

Dew point34°

Fri, 1663° / 39°

63 °

Mammoth, Friday, 16 October

Clear. High 63°, low 39°.

Pressure30.47 inHg

Wind3.1 mph NE

Humidity32%

Visibility6.2 mi

Dew point18°

Sat, 1764° / 41°

64 °

Mammoth, Saturday, 17 October

Clear. High 64°, low 41°.

Pressure30.21 inHg

Wind5.6 mph S

Humidity30%

Visibility—

Dew point26°

Sun, 1862° / 38°

62 °

Mammoth, Sunday, 18 October

Clear. High 62°, low 38°.

Pressure30.06 inHg

Wind5 mph SW

Humidity34%

Visibility—

Dew point28°

Mon, 1964° / 47°

64 °

Mammoth, Monday, 19 October

Clear. High 64°, low 47°.

Pressure29.88 inHg

Wind22.9 mph SW

Humidity25%

Visibility—

Dew point23°

Tue, 2049° / 33°

0.72

49 °

Mammoth, Tuesday, 20 October

Snow. High 49°, low 33°.

Pressure29.74 inHg

Wind12.3 mph S

Humidity83%

Visibility—

Dew point40°

Wed, 2136° / 31°

0.4

36 °

Mammoth, Wednesday, 21 October

Snow. High 36°, low 31°.

Pressure29.97 inHg

Wind6.8 mph NW

Humidity74%

Visibility—

Dew point27°

Thu, 2243° / 27°

43 °

Mammoth, Thursday, 22 October

Mostly clear. High 43°, low 27°.

Pressure30.09 inHg

Wind6.4 mph SW

Humidity58%

Visibility—

Dew point24°

Fri, 2340° / 33°

0.01

40 °

Mammoth, Friday, 23 October

Light rain. High 40°, low 33°.

Pressure30.21 inHg

Wind9.5 mph N

Humidity76%

Visibility—

Dew point29°

Sat, 2438° / 29°

0.02

38 °

Mammoth, Saturday, 24 October

Snow. High 38°, low 29°.

Pressure30.33 inHg

Wind7.9 mph N

Humidity63%

Visibility—

Dew point25°

Sun, 2545° / 29°

45 °

Mammoth, Sunday, 25 October

Overcast. High 45°, low 29°.

Pressure30.24 inHg

Wind4 mph S

Humidity48%

Visibility—

Dew point21°

Mon, 2643° / 31°

43 °

Mammoth, Monday, 26 October

Overcast. High 43°, low 31°.

Pressure29.94 inHg

Wind9.1 mph N

Humidity59%

Visibility—

Dew point25°

Tue, 2757° / 34°

57 °

Mammoth, Tuesday, 27 October

Partly cloudy. High 57°, low 34°.

Pressure30.06 inHg

Wind6.8 mph N

Humidity49%

Visibility—

Dew point30°

Wed, 2856° / 42°

56 °

Mammoth, Wednesday, 28 October

Overcast. High 56°, low 42°.

Pressure29.97 inHg

Wind9.1 mph SW

Humidity55%

Visibility—

Dew point35°

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, UT 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, UT 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.