Currently: 54 °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 1992–2021.
All Year Climate & Weather Averages in Portland
High Temp: 82 °F
Low Temp: 36 °F
Mean Temp: 55 °F
Precipitation: 3.13"
Humidity: 71%
Dew Point: 45 °F
Wind: 11 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Portland
High Temp: 47 °F
Low Temp: 37 °F
Mean Temp: 42 °F
Precipitation: 5.20"
Humidity: 82%
Dew Point: 36 °F
Wind: 15 mph
Pressure: 30.11 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Portland
High Temp: 51 °F
Low Temp: 37 °F
Mean Temp: 44 °F
Precipitation: 3.82"
Humidity: 77%
Dew Point: 36 °F
Wind: 13 mph
Pressure: 30.10 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Portland
High Temp: 56 °F
Low Temp: 40 °F
Mean Temp: 48 °F
Precipitation: 3.90"
Humidity: 73%
Dew Point: 39 °F
Wind: 11 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Portland
High Temp: 61 °F
Low Temp: 44 °F
Mean Temp: 52 °F
Precipitation: 2.79"
Humidity: 69%
Dew Point: 42 °F
Wind: 10 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Portland
High Temp: 69 °F
Low Temp: 50 °F
Mean Temp: 59 °F
Precipitation: 2.45"
Humidity: 65%
Dew Point: 46 °F
Wind: 9 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
June Climate & Weather Averages in Portland
High Temp: 74 °F
Low Temp: 54 °F
Mean Temp: 64 °F
Precipitation: 1.63"
Humidity: 63%
Dew Point: 50 °F
Wind: 10 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
July Climate & Weather Averages in Portland
High Temp: 81 °F
Low Temp: 58 °F
Mean Temp: 70 °F
Precipitation: 0.53"
Humidity: 58%
Dew Point: 54 °F
Wind: 11 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
August Climate & Weather Averages in Portland
High Temp: 82 °F
Low Temp: 59 °F
Mean Temp: 70 °F
Precipitation: 0.55"
Humidity: 59%
Dew Point: 54 °F
Wind: 10 mph
Pressure: 30.01 "Hg
Visibility: 11 mi
September Climate & Weather Averages in Portland
High Temp: 76 °F
Low Temp: 54 °F
Mean Temp: 65 °F
Precipitation: 1.76"
Humidity: 65%
Dew Point: 52 °F
Wind: 9 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Portland
High Temp: 64 °F
Low Temp: 47 °F
Mean Temp: 55 °F
Precipitation: 3.53"
Humidity: 76%
Dew Point: 47 °F
Wind: 9 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Portland
High Temp: 53 °F
Low Temp: 41 °F
Mean Temp: 47 °F
Precipitation: 5.48"
Humidity: 82%
Dew Point: 41 °F
Wind: 12 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Portland
High Temp: 46 °F
Low Temp: 36 °F
Mean Temp: 41 °F
Precipitation: 5.89"
Humidity: 83%
Dew Point: 36 °F
Wind: 14 mph
Pressure: 30.13 "Hg
Visibility: 9 mi