Portland · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Portland & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
88°
Thu, Sep 10
Coldest night
59°
Mon, Sep 7
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
77° 61°
90% precip chance
Sat 12 – Sun 13 Sep
83° 59°
typical range
Sat 19 – Sun 20 Sep
74° 61°
typical range
Sat 26 – Sun 27 Sep
73° 62°
typical range
30 days — Portland
14 forecast + 16 climatology
Sun · Today Showers
81°64°1.3 mm⌄
Wind11 mph SW
Gusts19 mph
UV index7 – High
Precip chance60%
Sunrise07:05
Sunset20:15
Mon · Tomorrow Mostly cloudy
84°71°0.1 mm⌄
Wind13 mph SW
Gusts27 mph
UV index8 – High
Precip chance26%
Sunrise07:06
Sunset20:14
Tuesday 1/9 Mostly cloudy
85°73°0.2 mm⌄
Wind14 mph SW
Gusts34 mph
UV index8 – Very high
Precip chance28%
Sunrise07:07
Sunset20:12
Wednesday 2/9 Sunny
86°75°8%⌄
Wind13 mph SW
Gusts35 mph
UV index8 – Very high
Precip chance8%
Sunrise07:08
Sunset20:10
Thursday 3/9 Sunny
85°72°0.9 mm⌄
Wind10 mph W
Gusts33 mph
UV index8 – Very high
Precip chance45%
Sunrise07:09
Sunset20:09
Friday 4/9 Mostly cloudy
82°71°10.2 mm⌄
Wind6 mph N
Gusts10 mph
UV index6 – High
Precip chance86%
Sunrise07:10
Sunset20:07
Saturday 5/9 Showers
77°67°106.6 mm⌄
Wind10 mph E
Gusts22 mph
UV index5 – Moderate
Precip chance90%
Sunrise07:11
Sunset20:06
Sunday 6/9 Sunny
71°61°12%⌄
Wind11 mph E
Gusts23 mph
UV index6 – High
Precip chance12%
Sunrise07:12
Sunset20:04
Monday 7/9 Mostly cloudy
70°59°25%⌄
Wind8 mph S
Gusts23 mph
UV index5 – Moderate
Precip chance25%
Sunrise07:13
Sunset20:02
Tuesday 8/9 Mostly cloudy
85°70°12%⌄
Wind23 mph SW
Gusts45 mph
UV index6 – High
Precip chance12%
Sunrise07:14
Sunset20:01
Wednesday 9/9 Sunny
84°77°8%⌄
Wind17 mph SW
Gusts40 mph
UV index7 – High
Precip chance8%
Sunrise07:15
Sunset19:59
Thursday 10/9 Sunny
88°79°6%⌄
Wind16 mph SW
Gusts36 mph
UV index8 – Very high
Precip chance6%
Sunrise07:16
Sunset19:57
Friday 11/9 Sunny
87°77°6%⌄
Wind15 mph SW
Gusts40 mph
UV index8 – Very high
Precip chance6%
Sunrise07:16
Sunset19:56
Saturday 12/9 Sunny
83°59°19.9 mm⌄
Wind23 mph SW
Gusts40 mph
UV index7 – High
Precip chance75%
Sunrise07:17
Sunset19:54
Sunday 13/9 Rain (climatological)
75°63°30.0 mm⌄
Day≈69–80°
Night≈58–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
80°66°20%⌄
Day≈74–85°
Night≈61–71°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
81°67°20%⌄
Day≈76–87°
Night≈62–73°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
79°66°36.0 mm⌄
Day≈73–84°
Night≈60–71°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
71°61°20%⌄
Day≈66–76°
Night≈56–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
72°62°20%⌄
Day≈67–77°
Night≈56–67°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
72°61°28.0 mm⌄
Day≈66–77°
Night≈56–67°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
74°63°20%⌄
Day≈69–79°
Night≈57–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
76°64°20%⌄
Day≈71–82°
Night≈59–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
77°65°23.0 mm⌄
Day≈72–83°
Night≈59–70°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
76°64°20%⌄
Day≈71–82°
Night≈59–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
70°60°20%⌄
Day≈65–76°
Night≈55–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
69°60°40.0 mm⌄
Day≈64–74°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
72°62°20%⌄
Day≈67–78°
Night≈56–67°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
73°62°20%⌄
Day≈68–79°
Night≈57–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
78°65°35.0 mm⌄
Day≈72–83°
Night≈59–70°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Portland, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.