Helena, Montana, United States Climate Change Severity

62
Very High
The current climate change severity in Helena is Very High, with a 16.9% 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 Jan. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Helena Weather Condition Changes (Historic Vs 2026)

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

Over the past 16 year(s), Helena temperature has changed by around -53.6%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
42
-50%
cloudyCloudy
1111
0%
rainyRainy
70
-100%
snowySnowy
20
-100%
mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 16 years, Helena has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (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

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Helena experienced significant changes:

Temperature change of

+3.1 °C

Variation in annual rainfall

-100 %

Change in average humidity

-21.05 %

PM2.5 levels surged by

+100 %

Heatwave changed by

+2.7 day(s)

Coldwave changed by

-1.5 day(s)

Wind speeds changed by

-1.2 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Helena'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 Jan.

Helena Weather Forecast 30 Days (February - March 2026)
Helena, Montana, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 14, Feb.
sunnySunny
Temperature Icon12°/-1°
Humidity Icon60%
Wind Icon10km/h
Sun. 15, Feb.
cloudyCloudy
Temperature Icon7°/-2°
Humidity Icon79%
Wind Icon23km/h
Mon. 16, Feb.
partly cloudyPartly Cloudy
Temperature Icon10°/-6°
Humidity Icon76%
Wind Icon8km/h
Tue. 17, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon4°/-8°
Humidity Icon82%
Wind Icon11km/h
Wed. 18, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-11°
Humidity Icon81%
Wind Icon8km/h
Thu. 19, Feb.
partly cloudyPartly Cloudy
Temperature Icon2°/-7°
Humidity Icon61%
Wind Icon20km/h
Fri. 20, Feb.
patchy moderate snowPatchy moderate snow
Temperature Icon-3°/-8°
Humidity Icon79%
Wind Icon12km/h
Sat. 21, Feb.
patchy light snowPatchy light snow
Temperature Icon-5°/-10°
Humidity Icon80%
Wind Icon12km/h
Sun. 22, Feb.
partly cloudyPartly Cloudy
Temperature Icon-1°/-11°
Humidity Icon77%
Wind Icon3km/h
Mon. 23, Feb.
patchy moderate snowPatchy moderate snow
Temperature Icon-2°/-9°
Humidity Icon79%
Wind Icon14km/h
Tue. 24, Feb.
light freezing rainLight freezing rain
Temperature Icon-3°/-12°
Humidity Icon80%
Wind Icon10km/h
Wed. 25, Feb.
partly cloudyPartly Cloudy
Temperature Icon3°/-10°
Humidity Icon73%
Wind Icon7km/h
Thu. 26, Feb.
sunnySunny
Temperature Icon4°/-7°
Humidity Icon62%
Wind Icon19km/h
Fri. 27, Feb.
partly cloudyPartly Cloudy
Temperature Icon5°/-3°
Humidity Icon60%
Wind Icon22km/h
Sat. 28, Feb.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-9°
Humidity Icon80%
Wind Icon14km/h
Sun. 1, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-9°
Humidity Icon81%
Wind Icon15km/h
Mon. 2, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-9°
Humidity Icon83%
Wind Icon16km/h
Tue. 3, Mar.
light freezing rainLight freezing rain
Temperature Icon2°/-7°
Humidity Icon80%
Wind Icon17km/h
Wed. 4, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-7°
Humidity Icon79%
Wind Icon14km/h
Thu. 5, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon3°/-7°
Humidity Icon78%
Wind Icon14km/h
Fri. 6, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-7°
Humidity Icon79%
Wind Icon15km/h
Sat. 7, Mar.
light freezing rainLight freezing rain
Temperature Icon4°/-8°
Humidity Icon77%
Wind Icon14km/h
Sun. 8, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon3°/-7°
Humidity Icon78%
Wind Icon14km/h
Mon. 9, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon3°/-7°
Humidity Icon76%
Wind Icon13km/h
Tue. 10, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon4°/-8°
Humidity Icon76%
Wind Icon16km/h
Wed. 11, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon4°/-7°
Humidity Icon76%
Wind Icon15km/h
Thu. 12, Mar.
light freezing rainLight freezing rain
Temperature Icon6°/-6°
Humidity Icon76%
Wind Icon15km/h
Fri. 13, Mar.
moderate snowModerate snow
Temperature Icon6°/-5°
Humidity Icon80%
Wind Icon16km/h
Sat. 14, Mar.
patchy moderate snowPatchy moderate snow
Temperature Icon6°/-4°
Humidity Icon78%
Wind Icon16km/h
Sun. 15, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon7°/-4°
Humidity Icon79%
Wind Icon17km/h
Mon. 16, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon6°/-3°
Humidity Icon75%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 14, Feb.

11.5°C

Low will be onTue. 24, Feb.

-11.6°C

HumidityHumidity

High will be onMon. 2, Mar.

83%

Low will be onSat. 14, Feb.

60%

Wind SpeedWind Speed

High will be onSun. 15, Feb.

22.7km/h

Low will be onSun. 22, Feb.

3.2km/h

PrecipitationPrecipitation

High will be onSun. 15, Mar.

1.9mm

Low will be onFri. 27, Feb.

0.01mm

Ultraviolet IndexUV

High will be onThu. 19, Feb.

2

Low will be onFri. 20, Feb.

1

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