Boulder, Colorado, United States Climate Change Severity

81
Extreme
The current climate change severity in Boulder is Extreme, with a 62% 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 Jun. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Boulder 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), Boulder temperature has changed by around +71.3%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
6088
46.6%
cloudyCloudy
5124
-52.9%
rainyRainy
7042
-40%
snowySnowy
95
-44.4%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 16 years, Boulder has experienced measurable shifts in key climate parameters, contributing to the current severity score of 81 (within the Extreme severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

81/100

Extreme

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Boulder experienced significant changes:

Temperature change of

+4.01 °C

Variation in annual rainfall

-12.87 %

Change in average humidity

-25.05 %

PM2.5 levels surged by

-59.58 %

Heatwave changed by

+27 Days

Coldwave changed by

-5 Days

Wind speeds changed by

+7.24 km/h

These indicators show extreme climate changes, including key climate parametes. The Extreme severity score necessitates immediate action, including large-scale mitigation efforts, climate resilience strategies, and extensive disaster preparedness.

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

Boulder Weather Forecast 30 Days (August 2026)
Boulder, Colorado, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 1, Aug.
sunnySunny
Temperature Icon33°/14°
Humidity Icon35%
Wind Icon17.3km/h
Sun. 2, Aug.
sunnySunny
Temperature Icon37°/17°
Humidity Icon21%
Wind Icon19.8km/h
Mon. 3, Aug.
sunnySunny
Temperature Icon37°/18°
Humidity Icon24%
Wind Icon24.5km/h
Tue. 4, Aug.
sunnySunny
Temperature Icon28°/10°
Humidity Icon40%
Wind Icon15.1km/h
Wed. 5, Aug.
sunnySunny
Temperature Icon30°/12°
Humidity Icon38%
Wind Icon23km/h
Thu. 6, Aug.
sunnySunny
Temperature Icon33°/12°
Humidity Icon38%
Wind Icon22.7km/h
Fri. 7, Aug.
sunnySunny
Temperature Icon34°/13°
Humidity Icon36%
Wind Icon23.4km/h
Sat. 8, Aug.
sunnySunny
Temperature Icon37°/15°
Humidity Icon14%
Wind Icon20.9km/h
Sun. 9, Aug.
moderate rain at timesRain
Temperature Icon27°/15°
Humidity Icon44%
Wind Icon13.4km/h
Mon. 10, Aug.
moderate rain at timesRain
Temperature Icon27°/14°
Humidity Icon44%
Wind Icon14km/h
Tue. 11, Aug.
patchy rain possibleRain Possible
Temperature Icon28°/15°
Humidity Icon41%
Wind Icon14.5km/h
Wed. 12, Aug.
patchy rain possibleRain Possible
Temperature Icon28°/15°
Humidity Icon37%
Wind Icon14.3km/h
Thu. 13, Aug.
patchy rain possibleRain Possible
Temperature Icon28°/15°
Humidity Icon40%
Wind Icon15.1km/h
Fri. 14, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/15°
Humidity Icon44%
Wind Icon16.3km/h
Sat. 15, Aug.
moderate rain at timesRain
Temperature Icon29°/15°
Humidity Icon41%
Wind Icon16.9km/h
Sun. 16, Aug.
moderate rain at timesRain
Temperature Icon27°/15°
Humidity Icon44%
Wind Icon15.6km/h
Mon. 17, Aug.
moderate rain at timesRain
Temperature Icon29°/15°
Humidity Icon37%
Wind Icon15.6km/h
Tue. 18, Aug.
heavy rain at timesHeavy Rain
Temperature Icon28°/15°
Humidity Icon38%
Wind Icon15km/h
Wed. 19, Aug.
heavy rain at timesHeavy Rain
Temperature Icon27°/14°
Humidity Icon45%
Wind Icon15.3km/h
Thu. 20, Aug.
moderate rain at timesRain
Temperature Icon27°/14°
Humidity Icon42%
Wind Icon14.7km/h
Fri. 21, Aug.
moderate rain at timesRain
Temperature Icon28°/15°
Humidity Icon40%
Wind Icon17km/h
Sat. 22, Aug.
heavy rain at timesHeavy Rain
Temperature Icon28°/15°
Humidity Icon44%
Wind Icon16km/h
Sun. 23, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/15°
Humidity Icon47%
Wind Icon14.6km/h
Mon. 24, Aug.
moderate rain at timesRain
Temperature Icon27°/15°
Humidity Icon46%
Wind Icon14.7km/h
Tue. 25, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/15°
Humidity Icon46%
Wind Icon15km/h
Wed. 26, Aug.
moderate rain at timesRain
Temperature Icon27°/15°
Humidity Icon47%
Wind Icon13.5km/h
Thu. 27, Aug.
patchy rain possibleRain Possible
Temperature Icon28°/15°
Humidity Icon44%
Wind Icon14.6km/h
Fri. 28, Aug.
moderate rain at timesRain
Temperature Icon27°/15°
Humidity Icon47%
Wind Icon14.7km/h
Sat. 29, Aug.
patchy rain possibleRain Possible
Temperature Icon27°/14°
Humidity Icon45%
Wind Icon13.9km/h
Sun. 30, Aug.
moderate rain at timesRain
Temperature Icon28°/14°
Humidity Icon42%
Wind Icon14.2km/h
Mon. 31, Aug.
patchy rain possibleRain Possible
Temperature Icon28°/14°
Humidity Icon42%
Wind Icon14.8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 2, Aug.

37°C

Low will be onTue. 4, Aug.

10°C

HumidityHumidity

High will be onSun. 23, Aug.

47%

Low will be onSat. 8, Aug.

14%

Wind SpeedWind Speed

High will be onMon. 3, Aug.

24.5km/h

Low will be onSun. 9, Aug.

13.4km/h

PrecipitationPrecipitation

High will be onTue. 25, Aug.

3.1mm

Low will be onMon. 3, Aug.

0.06mm

Ultraviolet IndexUV

High will be onSat. 1, Aug.

10.4

Low will be onSun. 9, Aug.

5

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