West Yellowstone, Montana, United States Climate Change Severity

76
Very High
The current climate change severity in West Yellowstone is Very High, with a 73.9% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


West Yellowstone Weather Condition Changes (Historic Vs 2026)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), West Yellowstone temperature has changed by around +155.3%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
2961
110.3%

cloudyCloudy
4027
-32.5%

rainyRainy
8332
-61.4%

snowySnowy
2121
0%

mistyMisty
019
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, West Yellowstone has experienced measurable shifts in key climate parameters, contributing to the current severity score of 76 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

76/100


Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, West Yellowstone experienced significant changes:

Temperature change of

+2.32 °C


Variation in annual rainfall

+56.73 %


Change in average humidity

-13.68 %


PM2.5 levels surged by

-32.64 %


Heatwave changed by

+14 Days


Coldwave changed by

-6 Days


Wind speeds changed by

+2.09 km/h


These indicators show a dramatic increase in volatility and worsening conditions. West Yellowstone's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

West Yellowstone Weather Forecast 30 Days (August - September 2026)
West Yellowstone, Montana, United States


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 15, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon22°/6°

Humidity Icon66%

Wind Icon14.8km/h
Sun. 16, Aug.
sunnySunny

Temperature Icon25°/7°

Humidity Icon57%

Wind Icon18.7km/h
Mon. 17, Aug.
sunnySunny

Temperature Icon25°/9°

Humidity Icon51%

Wind Icon21.6km/h
Tue. 18, Aug.
sunnySunny

Temperature Icon23°/7°

Humidity Icon58%

Wind Icon21.2km/h
Wed. 19, Aug.
sunnySunny

Temperature Icon23°/5°

Humidity Icon51%

Wind Icon13km/h
Thu. 20, Aug.
sunnySunny

Temperature Icon26°/7°

Humidity Icon31%

Wind Icon14.8km/h
Fri. 21, Aug.
sunnySunny

Temperature Icon29°/9°

Humidity Icon25%

Wind Icon11.9km/h
Sat. 22, Aug.
sunnySunny

Temperature Icon31°/11°

Humidity Icon22%

Wind Icon27.7km/h
Sun. 23, Aug.
heavy rain at timesHeavy Rain

Temperature Icon22°/8°

Humidity Icon53%

Wind Icon18.2km/h
Mon. 24, Aug.
moderate rain at timesRain

Temperature Icon22°/8°

Humidity Icon50%

Wind Icon19.3km/h
Tue. 25, Aug.
patchy rain possibleRain Possible

Temperature Icon22°/7°

Humidity Icon49%

Wind Icon17.3km/h
Wed. 26, Aug.
patchy rain possibleRain Possible

Temperature Icon22°/8°

Humidity Icon51%

Wind Icon18.2km/h
Thu. 27, Aug.
moderate or heavy rain showerRain Showers

Temperature Icon22°/8°

Humidity Icon54%

Wind Icon17.4km/h
Fri. 28, Aug.
moderate or heavy rain showerRain Showers

Temperature Icon22°/8°

Humidity Icon52%

Wind Icon15.8km/h
Sat. 29, Aug.
patchy rain possibleRain Possible

Temperature Icon23°/8°

Humidity Icon48%

Wind Icon18.7km/h
Sun. 30, Aug.
moderate rain at timesRain

Temperature Icon22°/8°

Humidity Icon47%

Wind Icon19.5km/h
Mon. 31, Aug.
heavy rain at timesHeavy Rain

Temperature Icon21°/7°

Humidity Icon48%

Wind Icon17km/h
Tue. 1, Sep.
heavy rain at timesHeavy Rain

Temperature Icon22°/7°

Humidity Icon50%

Wind Icon18.1km/h
Wed. 2, Sep.
patchy rain possibleRain Possible

Temperature Icon22°/8°

Humidity Icon44%

Wind Icon19km/h
Thu. 3, Sep.
moderate rain at timesRain

Temperature Icon22°/8°

Humidity Icon43%

Wind Icon18km/h
Fri. 4, Sep.
moderate or heavy rain showerRain Showers

Temperature Icon21°/7°

Humidity Icon46%

Wind Icon16km/h
Sat. 5, Sep.
moderate rain at timesRain

Temperature Icon21°/6°

Humidity Icon46%

Wind Icon16.7km/h
Sun. 6, Sep.
patchy rain possibleRain Possible

Temperature Icon21°/6°

Humidity Icon44%

Wind Icon17.1km/h
Mon. 7, Sep.
heavy rain at timesHeavy Rain

Temperature Icon21°/6°

Humidity Icon48%

Wind Icon17.1km/h
Tue. 8, Sep.
moderate or heavy rain showerRain Showers

Temperature Icon20°/6°

Humidity Icon50%

Wind Icon18.4km/h
Wed. 9, Sep.
moderate or heavy rain showerRain Showers

Temperature Icon19°/6°

Humidity Icon51%

Wind Icon17.2km/h
Thu. 10, Sep.
moderate rain at timesRain

Temperature Icon20°/5°

Humidity Icon51%

Wind Icon16.6km/h
Fri. 11, Sep.
moderate rain at timesRain

Temperature Icon19°/5°

Humidity Icon50%

Wind Icon17.1km/h
Sat. 12, Sep.
heavy rain at timesHeavy Rain

Temperature Icon18°/5°

Humidity Icon53%

Wind Icon16.6km/h
Sun. 13, Sep.
moderate or heavy rain showerRain Showers

Temperature Icon18°/5°

Humidity Icon54%

Wind Icon17.7km/h
Mon. 14, Sep.
moderate or heavy rain showerRain Showers

Temperature Icon19°/5°

Humidity Icon55%

Wind Icon17.2km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 22, Aug.

31°C


Low will be onWed. 19, Aug.

5°C

HumidityHumidity

High will be onSat. 15, Aug.

66%


Low will be onSat. 22, Aug.

22%

Wind SpeedWind Speed

High will be onSat. 22, Aug.

27.7km/h


Low will be onFri. 21, Aug.

11.9km/h

PrecipitationPrecipitation

High will be onTue. 8, Sep.

1.8mm


Low will be onWed. 19, Aug.

0.02mm

Ultraviolet IndexUV

High will be onSun. 16, Aug.

8.4


Low will be onSun. 23, Aug.

3