As of 21:53 MDT

Weather in Mammoth, UT

46°

Mammoth, Sunday, 11 October, 21:53

Rain. Feels like 45°. High 60°, low 45°.

Pressure29.71 inHg

Wind3.4 mph S

Humidity94%

Visibility1.9 mi

Dew point43°

See detailed hourly forecast

Mon, 1250° / 43°

0.49

50 °

Mammoth, Monday, 12 October

Rain. High 50°, low 43°.

Pressure29.77 inHg

Wind12 mph S

Humidity65%

Visibility6.2 mi

Dew point42°

Tue, 1347° / 37°

0.47

47 °

Mammoth, Tuesday, 13 October

Rain. High 47°, low 37°.

Pressure29.94 inHg

Wind0.7 mph SW

Humidity73%

Visibility6.2 mi

Dew point37°

Wed, 1448° / 35°

48 °

Mammoth, Wednesday, 14 October

Overcast. High 48°, low 35°.

Pressure30.09 inHg

Wind12.3 mph NW

Humidity69%

Visibility6.2 mi

Dew point34°

Thu, 1556° / 36°

56 °

Mammoth, Thursday, 15 October

Clear. High 56°, low 36°.

Pressure30.39 inHg

Wind6 mph N

Humidity52%

Visibility6.2 mi

Dew point34°

Fri, 1660° / 40°

60 °

Mammoth, Friday, 16 October

Clear. High 60°, low 40°.

Pressure30.45 inHg

Wind13.3 mph NE

Humidity40%

Visibility—

Dew point27°

Sat, 1765° / 41°

65 °

Mammoth, Saturday, 17 October

Clear. High 65°, low 41°.

Pressure30.15 inHg

Wind4.9 mph S

Humidity36%

Visibility—

Dew point31°

Sun, 1865° / 47°

65 °

Mammoth, Sunday, 18 October

Clear. High 65°, low 47°.

Pressure30.06 inHg

Wind8.2 mph SW

Humidity26%

Visibility—

Dew point24°

Mon, 1965° / 48°

65 °

Mammoth, Monday, 19 October

Clear. High 65°, low 48°.

Pressure29.94 inHg

Wind23.4 mph SW

Humidity31%

Visibility—

Dew point29°

Tue, 2053° / 40°

0.06

53 °

Mammoth, Tuesday, 20 October

Light rain. High 53°, low 40°.

Pressure29.97 inHg

Wind15.9 mph SW

Humidity41%

Visibility—

Dew point23°

Wed, 2145° / 31°

0.01

45 °

Mammoth, Wednesday, 21 October

Light rain. High 45°, low 31°.

Pressure30.27 inHg

Wind9.6 mph NW

Humidity40%

Visibility—

Dew point16°

Thu, 2255° / 33°

55 °

Mammoth, Thursday, 22 October

Clear. High 55°, low 33°.

Pressure30.36 inHg

Wind4.3 mph NE

Humidity23%

Visibility—

Dew point10°

Fri, 2363° / 41°

63 °

Mammoth, Friday, 23 October

Overcast. High 63°, low 41°.

Pressure30.03 inHg

Wind7.3 mph S

Humidity17%

Visibility—

Dew point11°

Sat, 2462° / 48°

62 °

Mammoth, Saturday, 24 October

Overcast. High 62°, low 48°.

Pressure29.74 inHg

Wind21.4 mph SW

Humidity18%

Visibility—

Dew point15°

Sun, 2556° / 45°

56 °

Mammoth, Sunday, 25 October

Overcast. High 56°, low 45°.

Pressure29.88 inHg

Wind8.9 mph SW

Humidity51%

Visibility—

Dew point33°

Mon, 2659° / 42°

59 °

Mammoth, Monday, 26 October

Partly cloudy. High 59°, low 42°.

Pressure30.00 inHg

Wind5.3 mph NE

Humidity37%

Visibility—

Dew point27°

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.