Monthly outlook for Port O'Brien, AK: average high 39.7°, average low 36.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 8 days and 2.8 inches. The warmest day looks like 30 October (48°), the coolest 12 November (31.3°).
39.7°/36.1°
Average high / low
+1.3°
Above normal
6 / 8
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
41.6°
37.8°
+2.1°
9 November – 18 November
36.6°
35.8°
+0.4°
19 November – 28 November
at normal
34°
—
October records over 66 years
60.8°3 October 2025All-time high
8.8°21 October 1966All-time low
Sat, 3144° / 40°0.09
44 °
Port O'Brien, Saturday, 31 October
Rain. High 44°, low 40°.
Pressure29.23 inHg
Wind2.5 mph E
Humidity79%
Visibility6.2 mi
Dew point34°
Sun, 0141° / 37°0.03
41 °
Port O'Brien, Sunday, 1 November
Light rain. High 41°, low 37°.
Pressure29.53 inHg
Wind6.4 mph NW
Humidity89%
Visibility6.2 mi
Dew point36°
Mon, 0241° / 37°0.43
41 °
Port O'Brien, Monday, 2 November
Snow. High 41°, low 37°.
Pressure29.26 inHg
Wind6.4 mph E
Humidity92%
Visibility5.8 mi
Dew point34°
Tue, 0343° / 40°0.88
43 °
Port O'Brien, Tuesday, 3 November
Rain. High 43°, low 40°.
Pressure28.88 inHg
Wind19.1 mph NE
Humidity96%
Visibility—
Dew point41°
Wed, 0441° / 38°0
41 °
Port O'Brien, Wednesday, 4 November
Light rain. High 41°, low 38°.
Pressure28.97 inHg
Wind6 mph N
Humidity90%
Visibility—
Dew point38°
Thu, 0540° / 37°0.06
40 °
Port O'Brien, Thursday, 5 November
Snow. High 40°, low 37°.
Pressure29.03 inHg
Wind11.4 mph N
Humidity90%
Visibility—
Dew point37°
Fri, 0640° / 36°0
40 °
Port O'Brien, Friday, 6 November
Light rain. High 40°, low 36°.
Pressure29.21 inHg
Wind6.6 mph SE
Humidity74%
Visibility—
Dew point32°
Sat, 0741° / 38°0.12
41 °
Port O'Brien, Saturday, 7 November
Snow. High 41°, low 38°.
Pressure29.32 inHg
Wind21.8 mph N
Humidity84%
Visibility—
Dew point36°
Sun, 0837° / 35°0
37 °
Port O'Brien, Sunday, 8 November
Partly cloudy. High 37°, low 35°.
Pressure29.18 inHg
Wind9.4 mph SW
Humidity79%
Visibility—
Dew point30°
Mon, 0938° / 34°0
38 °
Port O'Brien, Monday, 9 November
Light rain. High 38°, low 34°.
Pressure29.38 inHg
Wind6.8 mph S
Humidity83%
Visibility—
Dew point31°
Tue, 1040° / 37°0
40 °
Port O'Brien, Tuesday, 10 November
Overcast. High 40°, low 37°.
Pressure29.59 inHg
Wind4.1 mph E
Humidity79%
Visibility—
Dew point34°
Wed, 1136° / 31°0.14
36 °
Port O'Brien, Wednesday, 11 November
Snow. High 36°, low 31°.
Pressure29.56 inHg
Wind4.7 mph SW
Humidity75%
Visibility—
Dew point28°
Thu, 1235° / 31°0
35 °
Port O'Brien, Thursday, 12 November
Overcast. High 35°, low 31°.
Pressure29.65 inHg
Wind4.1 mph NE
Humidity79%
Visibility—
Dew point28°
Fri, 1335° / 32°0
35 °
Port O'Brien, Friday, 13 November
Light snow. High 35°, low 32°.
Pressure29.71 inHg
Wind4.3 mph NE
Humidity85%
Visibility—
Dew point30°
Sat, 1436° / 33°0.03
36 °
Port O'Brien, Saturday, 14 November
Snow. High 36°, low 33°.
Pressure29.59 inHg
Wind8.9 mph N
Humidity80%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1535° / 27°0.16
35 °
Port O'Brien, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high35°
Average low27°
Average precipitation0.16 in
Chance of precipitation43%
Record high47° (2014)
Record low7° (2021)
Mon, 1635° / 26°0.12
35 °
Port O'Brien, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low26°
Average precipitation0.12 in
Chance of precipitation43%
Record high49° (2018)
Record low5° (2009)
Tue, 1735° / 27°0.11
35 °
Port O'Brien, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high35°
Average low27°
Average precipitation0.11 in
Chance of precipitation33%
Record high46° (2018)
Record low6° (2009)
Wed, 1835° / 27°0.18
35 °
Port O'Brien, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high35°
Average low27°
Average precipitation0.18 in
Chance of precipitation37%
Record high46° (2014)
Record low11° (2021)
Thu, 1935° / 28°0.19
35 °
Port O'Brien, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high35°
Average low28°
Average precipitation0.19 in
Chance of precipitation55%
Record high49° (2019)
Record low11° (2006)
Fri, 2035° / 28°0.21
35 °
Port O'Brien, Friday, 20 November
Climate normal for this date — 60-year average.
Average high35°
Average low28°
Average precipitation0.21 in
Chance of precipitation53%
Record high44° (2014)
Record low10° (1989)
Sat, 2136° / 28°0.2
36 °
Port O'Brien, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high36°
Average low28°
Average precipitation0.2 in
Chance of precipitation57%
Record high45° (2003)
Record low7° (1994)
Sun, 2234° / 26°0.16
34 °
Port O'Brien, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high34°
Average low26°
Average precipitation0.16 in
Chance of precipitation52%
Record high44° (1993)
Record low-1° (2011)
Mon, 2333° / 25°0.16
33 °
Port O'Brien, Monday, 23 November
Climate normal for this date — 60-year average.
Average high33°
Average low25°
Average precipitation0.16 in
Chance of precipitation50%
Record high45° (2002)
Record low3° (1988)
Tue, 2432° / 25°0.12
32 °
Port O'Brien, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high32°
Average low25°
Average precipitation0.12 in
Chance of precipitation45%
Record high44° (2023)
Record low-6° (2021)
Wed, 2534° / 25°0.19
34 °
Port O'Brien, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low25°
Average precipitation0.19 in
Chance of precipitation48%
Record high44° (2002)
Record low0° (1963)
Thu, 2633° / 25°0.19
33 °
Port O'Brien, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low25°
Average precipitation0.19 in
Chance of precipitation55%
Record high45° (1981)
Record low-3° (1963)
Fri, 2735° / 26°0.23
35 °
Port O'Brien, Friday, 27 November
Climate normal for this date — 60-year average.
Average high35°
Average low26°
Average precipitation0.23 in
Chance of precipitation63%
Record high49° (2019)
Record low-1° (1963)
Sat, 2834° / 25°0.21
34 °
Port O'Brien, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high34°
Average low25°
Average precipitation0.21 in
Chance of precipitation55%
Record high51° (2019)
Record low2° (2021)
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 Port O'Brien, AK 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 Port O'Brien, AK 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.