As of 01:01 AKDT

Weather in Port William, AK

39°Current weather

Port William, Wednesday, 21 October, 01:01

Overcast. Feels like 29°. High 39°, low 38°.

Pressure29.53 inHg
Wind21.3 mph W
Humidity60%
Visibility6.2 mi
Dew point27°

Monthly outlook for Port William, AK: average high 42.3°, average low 39.6°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 7 days and 2.5 inches. The warmest day looks like 30 October (46.4°), the coolest 4 November (32.6°).

42.3°/39.6°
Average high / low
+1.1°
Above normal
4 / 7
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October44.3°40.9°+1.9°
31 October – 9 November39°39.1°-0.1°
10 November – 19 Novemberat normal37.8°—

October records over 66 years

56.3°8 October 2025All-time high
13.6°26 October 1985All-time low
Thu, 2239° / 37°0Clear
39 °Clear

Port William, Thursday, 22 October

Clear. High 39°, low 37°.

Pressure30.12 inHg
Wind16.3 mph N
Humidity63%
Visibility6.2 mi
Dew point26°
Fri, 2345° / 39°0Overcast
45 °Overcast

Port William, Friday, 23 October

Overcast. High 45°, low 39°.

Pressure30.36 inHg
Wind10 mph SE
Humidity78%
Visibility6.2 mi
Dew point37°
Sat, 2446° / 44°0.28Rain
46 °Rain

Port William, Saturday, 24 October

Rain. High 46°, low 44°.

Pressure30.21 inHg
Wind16.9 mph SE
Humidity86%
Visibility6.2 mi
Dew point42°
Sun, 2545° / 42°0.36Rain
45 °Rain

Port William, Sunday, 25 October

Rain. High 45°, low 42°.

Pressure30.18 inHg
Wind16.1 mph SE
Humidity92%
Visibility—
Dew point43°
Mon, 2646° / 44°0Overcast
46 °Overcast

Port William, Monday, 26 October

Overcast. High 46°, low 44°.

Pressure30.45 inHg
Wind19 mph SW
Humidity90%
Visibility—
Dew point42°
Tue, 2746° / 44°0Partly cloudy
46 °Partly cloudy

Port William, Tuesday, 27 October

Partly cloudy. High 46°, low 44°.

Pressure30.50 inHg
Wind15.7 mph SW
Humidity86%
Visibility—
Dew point41°
Wed, 2846° / 43°0.01Light rain
46 °Light rain

Port William, Wednesday, 28 October

Light rain. High 46°, low 43°.

Pressure30.21 inHg
Wind26 mph SW
Humidity64%
Visibility—
Dew point35°
Thu, 2944° / 42°0.04Light rain
44 °Light rain

Port William, Thursday, 29 October

Light rain. High 44°, low 42°.

Pressure30.09 inHg
Wind19.8 mph SW
Humidity77%
Visibility—
Dew point37°
Fri, 3046° / 42°0.01Light rain
46 °Light rain

Port William, Friday, 30 October

Light rain. High 46°, low 42°.

Pressure29.65 inHg
Wind21.7 mph SW
Humidity81%
Visibility—
Dew point40°
Sat, 3142° / 41°0Light rain
42 °Light rain

Port William, Saturday, 31 October

Light rain. High 42°, low 41°.

Pressure29.53 inHg
Wind28.1 mph SW
Humidity75%
Visibility—
Dew point35°
Sun, 0141° / 38°0.05Snow
41 °Snow

Port William, Sunday, 1 November

Snow. High 41°, low 38°.

Pressure29.59 inHg
Wind22.3 mph SW
Humidity68%
Visibility—
Dew point30°
Mon, 0239° / 36°0.05Light snow
39 °Light snow

Port William, Monday, 2 November

Light snow. High 39°, low 36°.

Pressure29.59 inHg
Wind18.1 mph N
Humidity68%
Visibility—
Dew point28°
Tue, 0338° / 34°0Clear
38 °Clear

Port William, Tuesday, 3 November

Clear. High 38°, low 34°.

Pressure29.68 inHg
Wind27.9 mph N
Humidity59%
Visibility—
Dew point23°
Wed, 0436° / 33°0Partly cloudy
36 °Partly cloudy

Port William, Wednesday, 4 November

Partly cloudy. High 36°, low 33°.

Pressure30.30 inHg
Wind28.1 mph N
Humidity69%
Visibility—
Dew point25°
Thu, 0538° / 36°0Overcast
38 °Overcast

Port William, Thursday, 5 November

Overcast. High 38°, low 36°.

Pressure30.47 inHg
Wind20.6 mph N
Humidity67%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0639° / 34°0.09Climate normal
39 °Climate normal

Port William, Friday, 6 November

Climate normal for this date — 60-year average.

Average high39°
Average low34°
Average precipitation0.09 in
Chance of precipitation40%
Record high47° (1979)
Record low19° (1989)
Sat, 0739° / 34°0.17Climate normal
39 °Climate normal

Port William, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high39°
Average low34°
Average precipitation0.17 in
Chance of precipitation53%
Record high48° (1979)
Record low19° (1989)
Sun, 0838° / 34°0.17Climate normal
38 °Climate normal

Port William, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high38°
Average low34°
Average precipitation0.17 in
Chance of precipitation53%
Record high48° (2003)
Record low11° (1990)
Mon, 0939° / 34°0.21Climate normal
39 °Climate normal

Port William, Monday, 9 November

Climate normal for this date — 60-year average.

Average high39°
Average low34°
Average precipitation0.21 in
Chance of precipitation52%
Record high50° (1993)
Record low10° (1990)
Tue, 1039° / 34°0.23Climate normal
39 °Climate normal

Port William, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high39°
Average low34°
Average precipitation0.23 in
Chance of precipitation62%
Record high47° (1979)
Record low13° (1975)
Wed, 1140° / 35°0.18Climate normal
40 °Climate normal

Port William, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°
Average low35°
Average precipitation0.18 in
Chance of precipitation55%
Record high47° (2014)
Record low15° (1975)
Thu, 1239° / 34°0.14Climate normal
39 °Climate normal

Port William, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high39°
Average low34°
Average precipitation0.14 in
Chance of precipitation43%
Record high49° (2018)
Record low18° (1975)
Fri, 1338° / 33°0.11Climate normal
38 °Climate normal

Port William, Friday, 13 November

Climate normal for this date — 60-year average.

Average high38°
Average low33°
Average precipitation0.11 in
Chance of precipitation45%
Record high47° (2018)
Record low19° (1961)
Sat, 1438° / 33°0.11Climate normal
38 °Climate normal

Port William, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high38°
Average low33°
Average precipitation0.11 in
Chance of precipitation42%
Record high47° (1986)
Record low17° (1975)
Sun, 1537° / 32°0.14Climate normal
37 °Climate normal

Port William, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high37°
Average low32°
Average precipitation0.14 in
Chance of precipitation45%
Record high46° (1979)
Record low11° (2006)
Mon, 1637° / 31°0.12Climate normal
37 °Climate normal

Port William, Monday, 16 November

Climate normal for this date — 60-year average.

Average high37°
Average low31°
Average precipitation0.12 in
Chance of precipitation43%
Record high46° (2014)
Record low14° (2011)
Tue, 1737° / 32°0.1Climate normal
37 °Climate normal

Port William, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high37°
Average low32°
Average precipitation0.1 in
Chance of precipitation38%
Record high46° (1964)
Record low10° (2021)
Wed, 1837° / 32°0.14Climate normal
37 °Climate normal

Port William, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high37°
Average low32°
Average precipitation0.14 in
Chance of precipitation42%
Record high46° (1967)
Record low9° (2021)
Thu, 1938° / 33°0.17Climate normal
38 °Climate normal

Port William, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high38°
Average low33°
Average precipitation0.17 in
Chance of precipitation55%
Record high49° (2019)
Record low17° (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 William, 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 William, 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.