Currently: 55 °F. Overcast. (Weather station: Portland International Airport, USA). See more current weatherAnnual Weather Averages Near Portland
Averages are for Portland International Airport, which is 7 miles from Portland.
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Portland
High Temp: 81 °F
Low Temp: 36 °F
Mean Temp: 55 °F
Precipitation: 2.05"
Humidity: 72%
Dew Point: 45 °F
Wind: 6 mph
Pressure: 30.07 "Hg
Visibility: 12 mi
January Climate & Weather Averages in Portland
High Temp: 47 °F
Low Temp: 36 °F
Mean Temp: 41 °F
Precipitation: 3.72"
Humidity: 82%
Dew Point: 36 °F
Wind: 8 mph
Pressure: 30.13 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Portland
High Temp: 51 °F
Low Temp: 37 °F
Mean Temp: 44 °F
Precipitation: 2.48"
Humidity: 77%
Dew Point: 37 °F
Wind: 7 mph
Pressure: 30.10 "Hg
Visibility: 11 mi
March Climate & Weather Averages in Portland
High Temp: 56 °F
Low Temp: 40 °F
Mean Temp: 48 °F
Precipitation: 2.94"
Humidity: 74%
Dew Point: 40 °F
Wind: 6 mph
Pressure: 30.07 "Hg
Visibility: 12 mi
April Climate & Weather Averages in Portland
High Temp: 61 °F
Low Temp: 43 °F
Mean Temp: 52 °F
Precipitation: 2.08"
Humidity: 70%
Dew Point: 42 °F
Wind: 5 mph
Pressure: 30.07 "Hg
Visibility: 12 mi
May Climate & Weather Averages in Portland
High Temp: 68 °F
Low Temp: 49 °F
Mean Temp: 58 °F
Precipitation: 1.69"
Humidity: 67%
Dew Point: 47 °F
Wind: 5 mph
Pressure: 30.05 "Hg
Visibility: 13 mi
June Climate & Weather Averages in Portland
High Temp: 73 °F
Low Temp: 54 °F
Mean Temp: 64 °F
Precipitation: 0.77"
Humidity: 64%
Dew Point: 51 °F
Wind: 6 mph
Pressure: 30.04 "Hg
Visibility: 14 mi
July Climate & Weather Averages in Portland
High Temp: 81 °F
Low Temp: 58 °F
Mean Temp: 69 °F
Precipitation: 0.17"
Humidity: 60%
Dew Point: 54 °F
Wind: 6 mph
Pressure: 30.04 "Hg
Visibility: 14 mi
August Climate & Weather Averages in Portland
High Temp: 81 °F
Low Temp: 58 °F
Mean Temp: 70 °F
Precipitation: 0.17"
Humidity: 60%
Dew Point: 55 °F
Wind: 6 mph
Pressure: 30.01 "Hg
Visibility: 14 mi
September Climate & Weather Averages in Portland
High Temp: 76 °F
Low Temp: 54 °F
Mean Temp: 65 °F
Precipitation: 0.62"
Humidity: 65%
Dew Point: 52 °F
Wind: 5 mph
Pressure: 30.02 "Hg
Visibility: 13 mi
October Climate & Weather Averages in Portland
High Temp: 64 °F
Low Temp: 47 °F
Mean Temp: 55 °F
Precipitation: 1.89"
Humidity: 76%
Dew Point: 47 °F
Wind: 5 mph
Pressure: 30.09 "Hg
Visibility: 11 mi
November Climate & Weather Averages in Portland
High Temp: 53 °F
Low Temp: 41 °F
Mean Temp: 47 °F
Precipitation: 3.97"
Humidity: 83%
Dew Point: 42 °F
Wind: 6 mph
Pressure: 30.11 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Portland
High Temp: 46 °F
Low Temp: 36 °F
Mean Temp: 41 °F
Precipitation: 4.09"
Humidity: 83%
Dew Point: 36 °F
Wind: 8 mph
Pressure: 30.14 "Hg
Visibility: 10 mi