Gresham, Oregon, United States Climate Change Severity

67
Very High
The current climate change severity in Gresham is Very High, with a 49.3% 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 Aug. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Gresham Weather Condition Changes (Historic Vs 2026)

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

Over the past 16 year(s), Gresham temperature has changed by around +14.7%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
54111
105.5%

cloudyCloudy
5215
-71.1%

rainyRainy
11052
-52.7%

snowySnowy
31
-66.6%

mistyMisty
010
100%

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

Climate Change Indicators:

Over the past 16 years, Gresham has experienced measurable shifts in key climate parameters, contributing to the current severity score of 67 (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

67/100


Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Gresham experienced significant changes:

Temperature change of

+1.74 °C


Variation in annual rainfall

+41.71 %


Change in average humidity

-5.67 %


PM2.5 levels surged by

+77.62 %


Heatwave changed by

-6 Days


Coldwave changed by

-5 Days


Wind speeds changed by

-0.57 km/h


These indicators show a dramatic increase in volatility and worsening conditions. Gresham'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 Aug.

Gresham Weather Forecast 30 Days (September - October 2026)
Gresham, Oregon, United States


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 26, Sep.
overcastOvercast

Temperature Icon19°/9°

Humidity Icon61%

Wind Icon11.2km/h
Sun. 27, Sep.
overcastOvercast

Temperature Icon21°/8°

Humidity Icon49%

Wind Icon10.1km/h
Mon. 28, Sep.
sunnySunny

Temperature Icon20°/7°

Humidity Icon59%

Wind Icon7.6km/h
Tue. 29, Sep.
overcastOvercast

Temperature Icon22°/11°

Humidity Icon65%

Wind Icon14km/h
Wed. 30, Sep.
overcastOvercast

Temperature Icon18°/10°

Humidity Icon73%

Wind Icon8.3km/h
Thu. 1, Oct.
sunnySunny

Temperature Icon16°/8°

Humidity Icon70%

Wind Icon10.8km/h
Fri. 2, Oct.
sunnySunny

Temperature Icon16°/8°

Humidity Icon70%

Wind Icon7.6km/h
Sat. 3, Oct.
heavy rain at timesHeavy Rain

Temperature Icon19°/8°

Humidity Icon65%

Wind Icon10.9km/h
Sun. 4, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon19°/9°

Humidity Icon67%

Wind Icon10.2km/h
Mon. 5, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon20°/9°

Humidity Icon65%

Wind Icon12.2km/h
Tue. 6, Oct.
heavy rain at timesHeavy Rain

Temperature Icon21°/9°

Humidity Icon60%

Wind Icon11.6km/h
Wed. 7, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon20°/10°

Humidity Icon69%

Wind Icon10.5km/h
Thu. 8, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon19°/9°

Humidity Icon72%

Wind Icon8.5km/h
Fri. 9, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon18°/9°

Humidity Icon73%

Wind Icon10.7km/h
Sat. 10, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/8°

Humidity Icon73%

Wind Icon12.9km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon16°/7°

Humidity Icon70%

Wind Icon13.2km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/7°

Humidity Icon68%

Wind Icon11.2km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/8°

Humidity Icon71%

Wind Icon13.8km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/8°

Humidity Icon72%

Wind Icon12.1km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon18°/9°

Humidity Icon66%

Wind Icon12.9km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon18°/9°

Humidity Icon67%

Wind Icon11.8km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/8°

Humidity Icon73%

Wind Icon12.3km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon18°/8°

Humidity Icon69%

Wind Icon10.9km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon17°/8°

Humidity Icon72%

Wind Icon11.7km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon16°/8°

Humidity Icon77%

Wind Icon11.3km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon16°/8°

Humidity Icon78%

Wind Icon13.7km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon16°/8°

Humidity Icon78%

Wind Icon12.4km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/7°

Humidity Icon78%

Wind Icon12.2km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/7°

Humidity Icon75%

Wind Icon14.3km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon75%

Wind Icon16.6km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon80%

Wind Icon14.7km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 29, Sep.

22°C


Low will be onSun. 25, Oct.

6°C

HumidityHumidity

High will be onMon. 26, Oct.

80%


Low will be onSun. 27, Sep.

49%

Wind SpeedWind Speed

High will be onSun. 25, Oct.

16.6km/h


Low will be onMon. 28, Sep.

7.6km/h

PrecipitationPrecipitation

High will be onMon. 26, Oct.

10.8mm


Low will be onSat. 26, Sep.

0.01mm

Ultraviolet IndexUV

High will be onThu. 1, Oct.

5


Low will be onSat. 24, Oct.

2