Hamilton, Montana, United States Climate Change Severity

43
High
The current climate change severity in Hamilton is High, with a -7.7% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Hamilton Weather Condition Changes (Historic Vs 2025)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Hamilton temperature has changed by around +1.9%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4438
-13.6%

cloudyCloudy
5235
-32.6%

rainyRainy
8565
-23.5%

snowySnowy
1110
-9.09%

mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 15 years, Hamilton has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

43/100


High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Hamilton experienced significant changes:

Temperature change of

+0.1 °C


Variation in annual rainfall

-8.9 %


Change in average humidity

-7.1 %


PM2.5 levels surged by

-29.5 %


Heatwave changed by

-1.9 day(s)


Coldwave changed by

-2.4 day(s)


Wind speeds changed by

-0.3 km/h


These indicators show improvement in key parametes of climate, but Hamilton remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Hamilton Weather Forecast 30 Days (August - September 2025)
Hamilton, Montana, United States


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 8, Aug.
cloudyCloudy

Temperature Icon20°/1°

Humidity Icon65%

Wind Icon16km/h
Sat. 9, Aug.
partly cloudyPartly Cloudy

Temperature Icon23°/6°

Humidity Icon53%

Wind Icon14km/h
Sun. 10, Aug.
sunnySunny

Temperature Icon29°/7°

Humidity Icon47%

Wind Icon15km/h
Mon. 11, Aug.
sunnySunny

Temperature Icon28°/13°

Humidity Icon44%

Wind Icon17km/h
Tue. 12, Aug.
sunnySunny

Temperature Icon27°/15°

Humidity Icon38%

Wind Icon18km/h
Wed. 13, Aug.
sunnySunny

Temperature Icon29°/16°

Humidity Icon32%

Wind Icon21km/h
Thu. 14, Aug.
sunnySunny

Temperature Icon28°/14°

Humidity Icon38%

Wind Icon17km/h
Fri. 15, Aug.
sunnySunny

Temperature Icon26°/13°

Humidity Icon48%

Wind Icon12km/h
Sat. 16, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon21°/10°

Humidity Icon61%

Wind Icon9km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon21°/9°

Humidity Icon58%

Wind Icon13km/h
Mon. 18, Aug.
sunnySunny

Temperature Icon25°/14°

Humidity Icon35%

Wind Icon21km/h
Tue. 19, Aug.
sunnySunny

Temperature Icon30°/12°

Humidity Icon27%

Wind Icon13km/h
Wed. 20, Aug.
sunnySunny

Temperature Icon27°/14°

Humidity Icon24%

Wind Icon18km/h
Thu. 21, Aug.
sunnySunny

Temperature Icon30°/13°

Humidity Icon29%

Wind Icon14km/h
Fri. 22, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon25°/12°

Humidity Icon52%

Wind Icon12km/h
Sat. 23, Aug.
moderate rain at timesModerate rain at times

Temperature Icon24°/11°

Humidity Icon53%

Wind Icon12km/h
Sun. 24, Aug.
moderate rain at timesModerate rain at times

Temperature Icon25°/10°

Humidity Icon50%

Wind Icon12km/h
Mon. 25, Aug.
moderate rain at timesModerate rain at times

Temperature Icon26°/10°

Humidity Icon48%

Wind Icon12km/h
Tue. 26, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon27°/10°

Humidity Icon48%

Wind Icon12km/h
Wed. 27, Aug.
moderate rain at timesModerate rain at times

Temperature Icon26°/11°

Humidity Icon48%

Wind Icon11km/h
Thu. 28, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon27°/11°

Humidity Icon45%

Wind Icon10km/h
Fri. 29, Aug.
moderate rain at timesModerate rain at times

Temperature Icon26°/11°

Humidity Icon49%

Wind Icon12km/h
Sat. 30, Aug.
moderate rain at timesModerate rain at times

Temperature Icon24°/11°

Humidity Icon54%

Wind Icon11km/h
Sun. 31, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon23°/9°

Humidity Icon54%

Wind Icon12km/h
Mon. 1, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon24°/9°

Humidity Icon52%

Wind Icon13km/h
Tue. 2, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon24°/9°

Humidity Icon46%

Wind Icon14km/h
Wed. 3, Sep.
heavy rain at timesHeavy rain at times

Temperature Icon24°/9°

Humidity Icon47%

Wind Icon12km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/9°

Humidity Icon50%

Wind Icon11km/h
Fri. 5, Sep.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/9°

Humidity Icon50%

Wind Icon11km/h
Sat. 6, Sep.
moderate rain at timesModerate rain at times

Temperature Icon23°/9°

Humidity Icon50%

Wind Icon11km/h
Sun. 7, Sep.
moderate rain at timesModerate rain at times

Temperature Icon24°/8°

Humidity Icon52%

Wind Icon11km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 21, Aug.

29.6°C


Low will be onFri. 8, Aug.

1.1°C

HumidityHumidity

High will be onFri. 8, Aug.

65%


Low will be onWed. 20, Aug.

24%

Wind SpeedWind Speed

High will be onWed. 13, Aug.

21.2km/h


Low will be onSat. 16, Aug.

9.4km/h

PrecipitationPrecipitation

High will be onThu. 4, Sep.

1.8mm


Low will be onFri. 15, Aug.

0.02mm

Ultraviolet IndexUV

High will be onWed. 13, Aug.

6


Low will be onSat. 16, Aug.

4