As of 20:21 BST

Weather in Portland

+23°Weather now

Portland, Saturday, 8 August, 20:21

Partly cloudy. Feels like 22°C. High 27°C, low 11°C.

Pressure1016 mb
Wind1 mph S
Humidity42%
Visibility6.2 mi
Dew point9°C
Sun, 09+13 ° /28 °0Clear sky
+28 °Clear sky

Portland, Sunday, 9 August

Clear sky. High 28°C, low 13°C.

Pressure1014 mb
Wind10 mph NW
Humidity30%
Visibility6.2 mi
Dew point7°C
Mon, 10+12 ° /27 °0Overcast
+27 °Overcast

Portland, Monday, 10 August

Overcast. High 27°C, low 12°C.

Pressure1020 mb
Wind8 mph N
Humidity41%
Visibility6.2 mi
Dew point10°C
Tue, 11+12 ° /30 °0Clear sky
+30 °Clear sky

Portland, Tuesday, 11 August

Clear sky. High 30°C, low 12°C.

Pressure1023 mb
Wind11 mph SE
Humidity29%
Visibility6.2 mi
Dew point8°C
Wed, 12+13 ° /36 °0Overcast
+36 °Overcast

Portland, Wednesday, 12 August

Overcast. High 36°C, low 13°C.

Pressure1021 mb
Wind8 mph SE
Humidity19%
Visibility6.2 mi
Dew point6°C
Thu, 13+19 ° /38 °0Clear sky
+38 °Clear sky

Portland, Thursday, 13 August

Clear sky. High 38°C, low 19°C.

Pressure1016 mb
Wind17 mph SE
Humidity11%
Visibility—
Dew point0°C
Fri, 14+16 ° /27 °0Partly cloudy
+27 °Partly cloudy

Portland, Friday, 14 August

Partly cloudy. High 27°C, low 16°C.

Pressure1018 mb
Wind17 mph NW
Humidity49%
Visibility—
Dew point14°C
Sat, 15+15 ° /27 °0Overcast
+27 °Overcast

Portland, Saturday, 15 August

Overcast. High 27°C, low 15°C.

Pressure1016 mb
Wind15 mph NW
Humidity45%
Visibility—
Dew point12°C
Sun, 16+15 ° /25 °0.1Light rain
+25 °Light rain

Portland, Sunday, 16 August

Light rain. High 25°C, low 15°C.

Pressure1018 mb
Wind13 mph NW
Humidity52%
Visibility—
Dew point12°C
Mon, 17+16 ° /23 °0.3Light rain
+23 °Light rain

Portland, Monday, 17 August

Light rain. High 23°C, low 16°C.

Pressure1013 mb
Wind19 mph NW
Humidity51%
Visibility—
Dew point11°C
Tue, 18+13 ° /21 °0Mainly clear
+21 °Mainly clear

Portland, Tuesday, 18 August

Mainly clear. High 21°C, low 13°C.

Pressure1011 mb
Wind18 mph W
Humidity50%
Visibility—
Dew point9°C
Wed, 19+12 ° /23 °0Partly cloudy
+23 °Partly cloudy

Portland, Wednesday, 19 August

Partly cloudy. High 23°C, low 12°C.

Pressure1014 mb
Wind13 mph NW
Humidity42%
Visibility—
Dew point8°C
Thu, 20+15 ° /22 °0.3Light rain
+22 °Light rain

Portland, Thursday, 20 August

Light rain. High 22°C, low 15°C.

Pressure1007 mb
Wind19 mph W
Humidity64%
Visibility—
Dew point13°C
Fri, 21+11 ° /20 °0Overcast
+20 °Overcast

Portland, Friday, 21 August

Overcast. High 20°C, low 11°C.

Pressure1015 mb
Wind18 mph W
Humidity47%
Visibility—
Dew point7°C
Sat, 22+13 ° /20 °0.6Light rain
+20 °Light rain

Portland, Saturday, 22 August

Light rain. High 20°C, low 13°C.

Pressure1016 mb
Wind23 mph W
Humidity60%
Visibility—
Dew point11°C
Sun, 23+13 ° /21 °0Overcast
+21 °Overcast

Portland, Sunday, 23 August

Overcast. High 21°C, low 13°C.

Pressure1022 mb
Wind19 mph NW
Humidity38%
Visibility—
Dew point5°C

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Portland are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Portland since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.