Monthly outlook for Portland, CO: average high 45.7°, average low 25.7°. That is 1.1° above the climate normal for November. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 12 November (60.6°), the coolest 21 November (7.5°).
45.7°/25.7°
Average high / low
+1.1°
Above normal
6 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
48.4°
45.2°
+1.8°
21 November – 30 November
41.2°
39.8°
+0.8°
1 December – 10 December
at normal
38.2°
—
November records over 66 years
71.1°3 November 2025All-time high
-25.1°25 November 2010All-time low
Climate normals and records are computed from the nearest reference point — Ridgway (6 mi).
Thu, 1261° / 38°0
61 °
Portland, Thursday, 12 November
Clear. High 61°, low 38°.
Pressure30.12 inHg
Wind3.7 mph N
Humidity38%
Visibility6.2 mi
Dew point21°
Fri, 1359° / 30°0
59 °
Portland, Friday, 13 November
Overcast. High 59°, low 30°.
Pressure29.85 inHg
Wind2.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point15°
Sat, 1450° / 37°0.32
50 °
Portland, Saturday, 14 November
Snow. High 50°, low 37°.
Pressure29.71 inHg
Wind2.1 mph N
Humidity70%
Visibility6.2 mi
Dew point32°
Sun, 1545° / 26°0.06
45 °
Portland, Sunday, 15 November
Snow. High 45°, low 26°.
Pressure30.12 inHg
Wind3.7 mph NW
Humidity79%
Visibility—
Dew point37°
Mon, 1653° / 25°0
53 °
Portland, Monday, 16 November
Clear. High 53°, low 25°.
Pressure30.12 inHg
Wind7 mph S
Humidity56%
Visibility—
Dew point31°
Tue, 1750° / 34°0.21
50 °
Portland, Tuesday, 17 November
Snow. High 50°, low 34°.
Pressure29.80 inHg
Wind7.9 mph S
Humidity59%
Visibility—
Dew point33°
Wed, 1834° / 25°0.22
34 °
Portland, Wednesday, 18 November
Snow. High 34°, low 25°.
Pressure29.88 inHg
Wind7.1 mph S
Humidity77%
Visibility—
Dew point25°
Thu, 1941° / 23°0.28
41 °
Portland, Thursday, 19 November
Snow. High 41°, low 23°.
Pressure29.97 inHg
Wind9.4 mph S
Humidity47%
Visibility—
Dew point20°
Fri, 2032° / 11°0.38
32 °
Portland, Friday, 20 November
Snow. High 32°, low 11°.
Pressure30.12 inHg
Wind9.8 mph NW
Humidity90%
Visibility—
Dew point25°
Sat, 2128° / 7°0
28 °
Portland, Saturday, 21 November
Clear. High 28°, low 7°.
Pressure30.30 inHg
Wind8.7 mph S
Humidity56%
Visibility—
Dew point11°
Sun, 2237° / 12°0
37 °
Portland, Sunday, 22 November
Clear. High 37°, low 12°.
Pressure30.27 inHg
Wind8.7 mph S
Humidity55%
Visibility—
Dew point18°
Mon, 2340° / 20°0
40 °
Portland, Monday, 23 November
Partly cloudy. High 40°, low 20°.
Pressure30.24 inHg
Wind8.1 mph S
Humidity62%
Visibility—
Dew point25°
Tue, 2446° / 29°0
46 °
Portland, Tuesday, 24 November
Overcast. High 46°, low 29°.
Pressure30.27 inHg
Wind7.1 mph S
Humidity80%
Visibility—
Dew point38°
Wed, 2546° / 31°0
46 °
Portland, Wednesday, 25 November
Clear. High 46°, low 31°.
Pressure30.30 inHg
Wind8.2 mph S
Humidity70%
Visibility—
Dew point34°
Thu, 2650° / 33°0
50 °
Portland, Thursday, 26 November
Partly cloudy. High 50°, low 33°.
Pressure30.24 inHg
Wind6.8 mph S
Humidity68%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2738° / 12°0.08
38 °
Portland, Friday, 27 November
Climate normal for this date — 60-year average.
Average high38°
Average low12°
Average precipitation0.08 in
Chance of precipitation42%
Record high65° (2017)
Record low-8° (2003)
Sat, 2838° / 11°0.06
38 °
Portland, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high38°
Average low11°
Average precipitation0.06 in
Chance of precipitation27%
Record high54° (1999)
Record low-12° (1965)
Sun, 2938° / 12°0.09
38 °
Portland, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high38°
Average low12°
Average precipitation0.09 in
Chance of precipitation38%
Record high58° (2021)
Record low-14° (1979)
Mon, 3038° / 11°0.06
38 °
Portland, Monday, 30 November
Climate normal for this date — 60-year average.
Average high38°
Average low11°
Average precipitation0.06 in
Chance of precipitation25%
Record high58° (1999)
Record low-23° (2006)
Tue, 0139° / 12°0.06
39 °
Portland, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high39°
Average low12°
Average precipitation0.06 in
Chance of precipitation25%
Record high55° (2021)
Record low-10° (2004)
Wed, 0239° / 13°0.06
39 °
Portland, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high39°
Average low13°
Average precipitation0.06 in
Chance of precipitation33%
Record high58° (2021)
Record low-17° (2004)
Thu, 0339° / 13°0.05
39 °
Portland, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high39°
Average low13°
Average precipitation0.05 in
Chance of precipitation22%
Record high57° (2017)
Record low-19° (2006)
Fri, 0440° / 12°0.04
40 °
Portland, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low12°
Average precipitation0.04 in
Chance of precipitation15%
Record high56° (1987)
Record low-8° (2009)
Sat, 0539° / 13°0.07
39 °
Portland, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low13°
Average precipitation0.07 in
Chance of precipitation30%
Record high54° (2012)
Record low-19° (2005)
Sun, 0638° / 12°0.06
38 °
Portland, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high38°
Average low12°
Average precipitation0.06 in
Chance of precipitation25%
Record high53° (1965)
Record low-20° (2011)
Mon, 0738° / 13°0.07
38 °
Portland, Monday, 7 December
Climate normal for this date — 60-year average.
Average high38°
Average low13°
Average precipitation0.07 in
Chance of precipitation33%
Record high51° (1981)
Record low-8° (1964)
Tue, 0837° / 12°0.08
37 °
Portland, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low12°
Average precipitation0.08 in
Chance of precipitation38%
Record high53° (1981)
Record low-26° (2005)
Wed, 0936° / 9°0.05
36 °
Portland, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high36°
Average low9°
Average precipitation0.05 in
Chance of precipitation32%
Record high55° (1981)
Record low-18° (1978)
Thu, 1037° / 9°0.04
37 °
Portland, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high37°
Average low9°
Average precipitation0.04 in
Chance of precipitation25%
Record high51° (1990)
Record low-15° (1994)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Portland, CO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Portland, CO since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.