Monthly outlook for Portland, ND: average high 55.6°, average low 38°. That is 4.5° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (71.8°), the coolest 30 October (30°).
55.6°/38°
Average high / low
+4.5°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
57.2°
49.7°
+4.1°
30 October – 8 November
53.1°
42.9°
+5.7°
9 November – 18 November
at normal
36.1°
—
October records over 66 years
86.9°3 October 2025All-time high
7.9°27 October 2001All-time low
Climate normals and records are computed from the nearest reference point — Hatton (10 mi).
Wed, 2162° / 39°0
62 °
Portland, Wednesday, 21 October
Clear. High 62°, low 39°.
Pressure30.27 inHg
Wind7.7 mph N
Humidity59%
Visibility6.2 mi
Dew point40°
Thu, 2269° / 36°0
69 °
Portland, Thursday, 22 October
Clear. High 69°, low 36°.
Pressure30.15 inHg
Wind7.7 mph SE
Humidity70%
Visibility6.2 mi
Dew point49°
Fri, 2372° / 57°0
72 °
Portland, Friday, 23 October
Overcast. High 72°, low 57°.
Pressure29.91 inHg
Wind14.7 mph S
Humidity65%
Visibility6.2 mi
Dew point54°
Sat, 2465° / 44°0
65 °
Portland, Saturday, 24 October
Overcast. High 65°, low 44°.
Pressure30.06 inHg
Wind15.5 mph NW
Humidity56%
Visibility6.2 mi
Dew point40°
Sun, 2549° / 35°0
49 °
Portland, Sunday, 25 October
Clear. High 49°, low 35°.
Pressure30.53 inHg
Wind7.1 mph NW
Humidity53%
Visibility—
Dew point29°
Mon, 2645° / 35°0
45 °
Portland, Monday, 26 October
Clear. High 45°, low 35°.
Pressure30.62 inHg
Wind11.4 mph N
Humidity56%
Visibility—
Dew point27°
Tue, 2748° / 31°0
48 °
Portland, Tuesday, 27 October
Clear. High 48°, low 31°.
Pressure30.45 inHg
Wind12.5 mph S
Humidity30%
Visibility—
Dew point14°
Wed, 2847° / 36°0
47 °
Portland, Wednesday, 28 October
Overcast. High 47°, low 36°.
Pressure30.18 inHg
Wind15.8 mph NW
Humidity47%
Visibility—
Dew point24°
Thu, 2945° / 32°0
45 °
Portland, Thursday, 29 October
Mostly clear. High 45°, low 32°.
Pressure30.24 inHg
Wind9.8 mph W
Humidity45%
Visibility—
Dew point21°
Fri, 3056° / 30°0
56 °
Portland, Friday, 30 October
Clear. High 56°, low 30°.
Pressure29.85 inHg
Wind20.7 mph S
Humidity35%
Visibility—
Dew point20°
Sat, 3153° / 43°0
53 °
Portland, Saturday, 31 October
Overcast. High 53°, low 43°.
Pressure29.62 inHg
Wind17.2 mph S
Humidity32%
Visibility—
Dew point21°
Sun, 0161° / 40°0
61 °
Portland, Sunday, 1 November
Clear. High 61°, low 40°.
Pressure29.68 inHg
Wind17.6 mph W
Humidity27%
Visibility—
Dew point21°
Mon, 0249° / 37°0
49 °
Portland, Monday, 2 November
Clear. High 49°, low 37°.
Pressure30.27 inHg
Wind16.1 mph NW
Humidity37%
Visibility—
Dew point20°
Tue, 0347° / 36°0.03
47 °
Portland, Tuesday, 3 November
Light rain. High 47°, low 36°.
Pressure30.15 inHg
Wind14 mph SE
Humidity51%
Visibility—
Dew point25°
Wed, 0452° / 35°0
52 °
Portland, Wednesday, 4 November
Partly cloudy. High 52°, low 35°.
Pressure30.18 inHg
Wind6.7 mph E
Humidity52%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0543° / 29°0.04
43 °
Portland, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.04 in
Chance of precipitation17%
Record high67° (1975)
Record low12° (1991)
Fri, 0641° / 28°0.06
41 °
Portland, Friday, 6 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.06 in
Chance of precipitation17%
Record high67° (2016)
Record low0° (1991)
Sat, 0741° / 26°0.06
41 °
Portland, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1999)
Record low-6° (1971)
Sun, 0840° / 27°0.06
40 °
Portland, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation18%
Record high67° (2020)
Record low-5° (2003)
Mon, 0938° / 25°0.03
38 °
Portland, Monday, 9 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.03 in
Chance of precipitation22%
Record high63° (2016)
Record low3° (1986)
Tue, 1036° / 24°0.06
36 °
Portland, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.06 in
Chance of precipitation20%
Record high58° (2016)
Record low-4° (1986)
Wed, 1135° / 23°0.03
35 °
Portland, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.03 in
Chance of precipitation15%
Record high60° (2005)
Record low-10° (1986)
Thu, 1235° / 22°0.04
35 °
Portland, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1981)
Record low-5° (1986)
Fri, 1337° / 23°0.04
37 °
Portland, Friday, 13 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.04 in
Chance of precipitation23%
Record high62° (2016)
Record low-10° (1986)
Sat, 1438° / 24°0.02
38 °
Portland, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high62° (2025)
Record low-3° (1995)
Sun, 1537° / 24°0.04
37 °
Portland, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high56° (2001)
Record low8° (1986)
Mon, 1637° / 23°0.02
37 °
Portland, Monday, 16 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.02 in
Chance of precipitation12%
Record high58° (2001)
Record low4° (1989)
Tue, 1735° / 23°0.04
35 °
Portland, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.04 in
Chance of precipitation17%
Record high60° (2001)
Record low-3° (2005)
Wed, 1834° / 21°0.04
34 °
Portland, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high34°
Average low21°
Average precipitation0.04 in
Chance of precipitation18%
Record high50° (2001)
Record low-7° (1986)
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, ND 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, ND 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.