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Current weather in Mammoth is clear sky.

Where can I find the hourly weather forecast for Mammoth?

This page shows hourly weather forecast for Mammoth, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Mammoth updated regularly?

Weather data for Mammoth is updated regularly with the latest available observations and forecasts.

Now · 11:55 PM

Mammoth Weather & Hourly Forecast

United States · Wyoming · 82190

47°F

Clear night

Feels like: 44°F

💧 Humidity 68% 🌡 Pressure 30.00 inHg 💨 Wind 1 mph 👁 Visibility 25.0 mi ☁ Clouds 3% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Mammoth

Tomorrow

12:00 AM

Clear night

47° 💧 0.000 in 💨 1 mph H 68%30.00 inHg

3:00 AM

Clear night

45° 💧 None 💨 0 mph H 71%30.00 inHg

6:00 AM

Clear night

41° 💧 None 💨 1 mph H 79%30.00 inHg

9:00 AM

Sunny

54° 💧 None 💨 2 mph H 53%30.00 inHg

12:00 PM

Sunny

69° 💧 None 💨 5 mph H 25%29.88 inHg

3:00 PM

Sunny

72° 💧 None 💨 8 mph H 20%29.83 inHg

6:00 PM

Sunny

69° 💧 None 💨 6 mph H 24%29.80 inHg

9:00 PM

Overcast night

56° 💧 None 💨 0 mph H 44%29.83 inHg

Monday

12:00 AM

Mostly cloudy night

50° 💧 0.007 in 💨 1 mph H 60%29.85 inHg

3:00 AM

Light rain

48° 💧 0.077 in 💨 2 mph H 84%29.88 inHg

6:00 AM

Mostly cloudy night

47° 💧 0.007 in 💨 1 mph H 93%29.85 inHg

9:00 AM

Mostly cloudy

50° 💧 0.007 in 💨 8 mph H 79%29.91 inHg

12:00 PM

Mostly sunny

55° 💧 0.005 in 💨 13 mph H 43%29.91 inHg

3:00 PM

Partly cloudy

57° 💧 0.002 in 💨 14 mph H 34%29.91 inHg

6:00 PM

Mostly sunny

56° 💧 None 💨 12 mph H 34%29.91 inHg

9:00 PM

Clear night

47° 💧 None 💨 6 mph H 51%30.00 inHg

Tomorrow

12:00 AM

Clear night

47° 💧 None 💨 1 mph H 68%30.00 inHg

1:00 AM

Mostly clear night

46° 💧 0.000 in 💨 1 mph H 68%30.00 inHg

2:00 AM

Clear night

46° 💧 None 💨 0 mph H 68%30.00 inHg

3:00 AM

Clear night

45° 💧 None 💨 0 mph H 71%30.00 inHg

4:00 AM

Clear night

43° 💧 None 💨 1 mph H 75%30.00 inHg

5:00 AM

Clear night

42° 💧 None 💨 1 mph H 78%30.00 inHg

6:00 AM

Clear night

41° 💧 None 💨 1 mph H 79%30.00 inHg

7:00 AM

Sunny

41° 💧 None 💨 1 mph H 79%30.00 inHg

8:00 AM

Sunny

45° 💧 None 💨 2 mph H 70%30.00 inHg

9:00 AM

Sunny

54° 💧 None 💨 2 mph H 53%30.00 inHg

10:00 AM

Sunny

61° 💧 None 💨 3 mph H 39%29.97 inHg

11:00 AM

Sunny

66° 💧 None 💨 2 mph H 32%29.91 inHg

12:00 PM

Sunny

69° 💧 None 💨 5 mph H 25%29.88 inHg

1:00 PM

Sunny

71° 💧 None 💨 7 mph H 21%29.85 inHg

2:00 PM

Sunny

72° 💧 None 💨 8 mph H 19%29.83 inHg

3:00 PM

Sunny

72° 💧 None 💨 8 mph H 20%29.83 inHg

4:00 PM

Sunny

71° 💧 None 💨 7 mph H 20%29.80 inHg

5:00 PM

Sunny

70° 💧 None 💨 7 mph H 22%29.80 inHg

6:00 PM

Sunny

69° 💧 None 💨 6 mph H 24%29.80 inHg

7:00 PM

Mostly sunny

64° 💧 None 💨 2 mph H 41%29.80 inHg

8:00 PM

Partly cloudy night

59° 💧 None 💨 0 mph H 40%29.83 inHg

9:00 PM

Overcast night

56° 💧 None 💨 0 mph H 44%29.83 inHg

10:00 PM

Overcast night

54° 💧 None 💨 1 mph H 50%29.85 inHg

11:00 PM

Mostly cloudy night

51° 💧 None 💨 2 mph H 55%29.85 inHg

Monday

12:00 AM

Mostly cloudy night

50° 💧 None 💨 1 mph H 60%29.85 inHg

1:00 AM

Overcast night

50° 💧 None 💨 1 mph H 60%29.85 inHg

2:00 AM

Light rain

50° 💧 0.007 in 💨 1 mph H 67%29.88 inHg

3:00 AM

Light rain

48° 💧 0.022 in 💨 2 mph H 84%29.88 inHg

4:00 AM

Light rain

47° 💧 0.048 in 💨 2 mph H 92%29.88 inHg

5:00 AM

Light rain

47° 💧 0.007 in 💨 1 mph H 90%29.85 inHg

6:00 AM

Mostly cloudy night

47° 💧 0.004 in 💨 1 mph H 93%29.85 inHg

7:00 AM

Mostly cloudy

46° 💧 0.001 in 💨 2 mph H 94%29.85 inHg

8:00 AM

Mostly cloudy

48° 💧 0.002 in 💨 5 mph H 94%29.88 inHg

9:00 AM

Mostly cloudy

50° 💧 0.001 in 💨 8 mph H 79%29.91 inHg

10:00 AM

Light rain

51° 💧 0.005 in 💨 7 mph H 64%29.91 inHg

11:00 AM

Mostly sunny

54° 💧 0.001 in 💨 10 mph H 48%29.91 inHg

12:00 PM

Mostly sunny

55° 💧 0.001 in 💨 13 mph H 43%29.91 inHg

1:00 PM

Mostly sunny

56° 💧 0.002 in 💨 13 mph H 41%29.91 inHg

2:00 PM

Mostly sunny

57° 💧 0.001 in 💨 14 mph H 38%29.91 inHg

3:00 PM

Partly cloudy

57° 💧 0.002 in 💨 14 mph H 34%29.91 inHg

4:00 PM

Partly cloudy

58° 💧 None 💨 14 mph H 31%29.88 inHg

5:00 PM

Partly cloudy

56° 💧 None 💨 13 mph H 33%29.91 inHg

6:00 PM

Mostly sunny

56° 💧 None 💨 12 mph H 34%29.91 inHg

7:00 PM

Sunny

53° 💧 None 💨 9 mph H 37%29.94 inHg

8:00 PM

Mostly clear night

49° 💧 None 💨 6 mph H 44%29.97 inHg

9:00 PM

Clear night

47° 💧 None 💨 6 mph H 51%30.00 inHg

10:00 PM

Clear night

45° 💧 None 💨 3 mph H 57%30.03 inHg

11:00 PM

Clear night

43° 💧 None 💨 2 mph H 60%30.06 inHg

Tuesday

12:00 AM

Clear night

41° 💧 None 💨 1 mph H 65%30.06 inHg

1:00 AM

Clear night

40° 💧 None 💨 2 mph H 69%30.09 inHg

2:00 AM

Clear night

39° 💧 None 💨 2 mph H 73%30.09 inHg

3:00 AM

Clear night

38° 💧 None 💨 2 mph H 76%30.12 inHg

4:00 AM

Clear night

37° 💧 None 💨 1 mph H 78%30.12 inHg

5:00 AM

Clear night

36° 💧 None 💨 1 mph H 81%30.15 inHg

6:00 AM

Clear night

35° 💧 None 💨 1 mph H 82%30.18 inHg

3:00 PM

Partly cloudy

61° 💧 None 💨 9 mph H 24%30.09 inHg

6:00 PM

Sunny

58° 💧 None 💨 8 mph H 25%30.15 inHg

9:00 PM

Clear night

45° 💧 None 💨 2 mph H 52%30.24 inHg

Wednesday

12:00 AM

Clear night

39° 💧 None 💨 2 mph H 69%30.30 inHg

3:00 AM

Clear night

37° 💧 None 💨 2 mph H 75%30.33 inHg

6:00 AM

Clear night

36° 💧 None 💨 1 mph H 75%30.36 inHg

9:00 AM

Sunny

48° 💧 None 💨 2 mph H 52%30.36 inHg

12:00 PM

Sunny

61° 💧 None 💨 7 mph H 26%30.27 inHg

3:00 PM

Sunny

66° 💧 None 💨 9 mph H 23%30.18 inHg

6:00 PM

Sunny

63° 💧 None 💨 8 mph H 26%30.15 inHg

9:00 PM

Clear night

49° 💧 None 💨 4 mph H 47%30.18 inHg

Thursday

12:00 AM

Clear night

43° 💧 None 💨 3 mph H 55%30.18 inHg

3:00 AM

Clear night

40° 💧 None 💨 2 mph H 59%30.18 inHg

6:00 AM

Clear night

37° 💧 None 💨 2 mph H 63%30.18 inHg

9:00 AM

Sunny

49° 💧 None 💨 2 mph H 46%30.15 inHg

12:00 PM

Sunny

63° 💧 None 💨 7 mph H 27%30.03 inHg

3:00 PM

Sunny

67° 💧 None 💨 10 mph H 23%29.91 inHg

6:00 PM

Sunny

64° 💧 None 💨 10 mph H 26%29.88 inHg

9:00 PM

Clear night

50° 💧 None 💨 3 mph H 44%29.88 inHg

Friday

12:00 AM

Clear night

46° 💧 None 💨 3 mph H 61%29.88 inHg

3:00 AM

Partly cloudy night

43° 💧 None 💨 2 mph H 69%29.88 inHg

6:00 AM

Mostly cloudy night

41° 💧 None 💨 3 mph H 82%29.88 inHg

9:00 AM

Mostly sunny

47° 💧 None 💨 1 mph H 73%29.88 inHg

12:00 PM

Light rain

50° 💧 None 💨 8 mph H 65%29.91 inHg

6:00 PM

Light rain

65° 💧 None 💨 11 mph H 34%29.83 inHg

Saturday

12:00 AM

Light rain

57° 💧 None 💨 2 mph H 73%29.71 inHg

6:00 AM

Mostly cloudy night

42° 💧 None 💨 4 mph H 97%29.88 inHg

12:00 PM

Mostly sunny

35° 💧 None 💨 4 mph H 94%29.97 inHg

6:00 PM

Sleet

46° 💧 None 💨 7 mph H 49%29.97 inHg

Sunday

12:00 AM

Moderate rain

41° 💧 None 💨 6 mph H 72%30.03 inHg

6:00 AM

Partly cloudy night

31° 💧 None 💨 6 mph H 95%30.30 inHg

12:00 PM

Mostly sunny

24° 💧 None 💨 1 mph H 96%30.39 inHg

6:00 PM

Sunny

48° 💧 None 💨 3 mph H 36%30.18 inHg

Monday

12:00 AM

Clear night

57° 💧 None 💨 5 mph H 18%30.00 inHg

6:00 AM

Clear night

36° 💧 None 💨 2 mph H 53%30.12 inHg

12:00 PM

Sunny

34° 💧 None 💨 2 mph H 55%30.15 inHg

6:00 PM

Sunny

61° 💧 None 💨 4 mph H 23%30.06 inHg

Tuesday

12:00 AM

Clear night

65° 💧 None 💨 5 mph H 22%29.94 inHg

6:00 AM

Clear night

41° 💧 None 💨 1 mph H 58%30.09 inHg

12:00 PM

Sunny

39° 💧 None 💨 2 mph H 53%30.15 inHg

6:00 PM

Mostly sunny

67° 💧 None 💨 2 mph H 22%30.03 inHg

Wednesday

12:00 AM

Mostly clear night

70° 💧 None 💨 3 mph H 22%29.91 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 0 mph H 53%30.12 inHg

12:00 PM

Mostly sunny

44° 💧 None 💨 1 mph H 73%30.18 inHg

6:00 PM

Mostly cloudy

66° 💧 None 💨 3 mph H 41%30.15 inHg

Thursday

12:00 AM

Mostly cloudy night

60° 💧 None 💨 6 mph H 64%30.18 inHg

6:00 AM

Partly cloudy night

48° 💧 None 💨 1 mph H 89%30.21 inHg

12:00 PM

Light rain

44° 💧 None 💨 2 mph H 91%30.21 inHg

6:00 PM

Mostly sunny

69° 💧 None 💨 3 mph H 36%30.09 inHg

Friday

12:00 AM

Partly cloudy night

67° 💧 None 💨 3 mph H 35%30.06 inHg

6:00 AM

Mostly clear night

51° 💧 None 💨 1 mph H 64%30.15 inHg

12:00 PM

Sunny

44° 💧 None 💨 0 mph H 82%30.21 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 1 mph H 40%30.09 inHg

Saturday

12:00 AM

Mostly clear night

66° 💧 None 💨 6 mph H 30%29.97 inHg

6:00 AM

Mostly clear night

48° 💧 None 💨 1 mph H 72%30.06 inHg

12:00 PM

Partly cloudy

41° 💧 None 💨 1 mph H 83%30.09 inHg

6:00 PM

Mostly sunny

60° 💧 None 💨 4 mph H 43%30.06 inHg

Sunday

12:00 AM

Clear night

59° 💧 None 💨 4 mph H 38%30.00 inHg

6:00 AM

Clear night

43° 💧 None 💨 0 mph H 70%30.12 inHg

12:00 PM

Partly cloudy

37° 💧 None 💨 3 mph H 92%30.18 inHg

In Mammoth and, more broadly, across the state of Wyoming: This evening will feature a mix of sun and clouds, with temperatures holding steady around 78 degrees. Light southwest winds will blow at up to 9 mph, with gusts reaching 16 mph. No precipitation is anticipated during the next few hours, making for a largely dry evening. Temperatures are expected to remain mild to warm throughout the night, creating comfortable conditions. Overall, it looks like a calm and pleasant evening with gentle breezes and stable weather.

15-Day Weather Outlook for Mammoth

Monday, Sep 7Mon Sep 7

Mostly sunny 69°/46° 💧 None 💨 14 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 61°/35° 💧 0.106 in 💨 12 mph

Wednesday, Sep 9Wed Sep 9

Sunny 66°/36° 💧 None 💨 9 mph

Thursday, Sep 10Thu Sep 10

Sunny 67°/37° 💧 None 💨 10 mph

Friday, Sep 11Fri Sep 11

Light rain 64°/41° 💧 0.149 in 💨 10 mph

Saturday, Sep 12Sat Sep 12

Light rain 65°/35° 💧 0.151 in 💨 11 mph

Sunday, Sep 13Sun Sep 13

Sleet 46°/24° 💧 0.275 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Sunny 57°/34° 💧 None 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Sunny 65°/39° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 70°/44° 💧 0.001 in 💨 3 mph

Thursday, Sep 17Thu Sep 17

Light rain 66°/44° 💧 0.049 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 69°/44° 💧 0.031 in 💨 3 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 66°/41° 💧 0.006 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 60°/37° 💧 0.017 in 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mammoth

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mammoth

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 2,8µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 5,4µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 41,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,2µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Mammoth

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,2High —Unavailable

Tomorrow UV 7,3High 🙂Fair

Monday UV 6,9High 🙂Fair

Tuesday UV 6,5High 🙂Fair

Wednesday UV 6,5High 😐Moderate

Thursday UV 6,0High —Unavailable

Friday UV 4,0Moderate —Unavailable

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Mammoth

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MAMMOTH, WYOMING

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:36 PM–5:08 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 30% Waning Crescent · Moon about 16° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 62° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min70%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Mammoth were last refreshed today at 11:55 PM. The current forecast period extends through 07/09/2026 at 9:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.