As of 06:21 AKDT

Weather in Port William, AK

47°

Port William, Friday, 30 October, 06:21

Overcast. Feels like 42°. High 48°, low 43°.

Pressure29.26 inHg

Wind10.1 mph SW

Humidity89%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Port William, AK: average high 42.6°, average low 39°. That is 2° above the climate normal for October. Precipitation is expected on 12 days (about 4.5 inches), against a normal of 8 days and 2.5 inches. The warmest day looks like 30 October (48.1°), the coolest 8 November (35°).

42.6°/39°

Average high / low

+2°

Above normal

12 / 8

Wet days / normal

4.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	44.1°	39.2°	+2.7°
9 November – 18 November	40.2°	37.9°	+1.3°
19 November – 28 November	at normal	36.9°	—

October records over 66 years

56.3°8 October 2025All-time high

13.6°26 October 1985All-time low

Sat, 3144° / 42°

0.03

44 °

Port William, Saturday, 31 October

Light rain. High 44°, low 42°.

Pressure29.23 inHg

Wind4 mph SW

Humidity84%

Visibility6.2 mi

Dew point38°

Sun, 0144° / 43°

0.36

44 °

Port William, Sunday, 1 November

Light rain. High 44°, low 43°.

Pressure29.50 inHg

Wind13.6 mph NE

Humidity84%

Visibility6.2 mi

Dew point39°

Mon, 0244° / 41°

0.32

44 °

Port William, Monday, 2 November

Rain. High 44°, low 41°.

Pressure29.38 inHg

Wind21.4 mph SE

Humidity76%

Visibility6.2 mi

Dew point36°

Tue, 0346° / 43°

1.08

46 °

Port William, Tuesday, 3 November

Rain. High 46°, low 43°.

Pressure28.97 inHg

Wind39.3 mph E

Humidity93%

Visibility—

Dew point41°

Wed, 0444° / 40°

0.43

44 °

Port William, Wednesday, 4 November

Rain. High 44°, low 40°.

Pressure28.97 inHg

Wind19.7 mph NE

Humidity97%

Visibility—

Dew point39°

Thu, 0544° / 36°

0.89

44 °

Port William, Thursday, 5 November

Rain. High 44°, low 36°.

Pressure29.00 inHg

Wind23.1 mph E

Humidity94%

Visibility—

Dew point40°

Fri, 0643° / 38°

0.22

43 °

Port William, Friday, 6 November

Rain. High 43°, low 38°.

Pressure29.23 inHg

Wind21 mph SW

Humidity79%

Visibility—

Dew point36°

Sat, 0743° / 40°

0.04

43 °

Port William, Saturday, 7 November

Light rain. High 43°, low 40°.

Pressure29.29 inHg

Wind28.1 mph N

Humidity77%

Visibility—

Dew point35°

Sun, 0840° / 35°

0.61

40 °

Port William, Sunday, 8 November

Snow. High 40°, low 35°.

Pressure29.15 inHg

Wind19.9 mph SW

Humidity98%

Visibility—

Dew point35°

Mon, 0942° / 36°

0.02

42 °

Port William, Monday, 9 November

Light rain. High 42°, low 36°.

Pressure29.41 inHg

Wind20.1 mph SW

Humidity82%

Visibility—

Dew point35°

Tue, 1042° / 40°

0.05

42 °

Port William, Tuesday, 10 November

Light rain. High 42°, low 40°.

Pressure29.62 inHg

Wind11.2 mph E

Humidity85%

Visibility—

Dew point38°

Wed, 1141° / 37°

0.31

41 °

Port William, Wednesday, 11 November

Snow. High 41°, low 37°.

Pressure29.53 inHg

Wind19.6 mph NW

Humidity96%

Visibility—

Dew point36°

Thu, 1238° / 37°

38 °

Port William, Thursday, 12 November

Overcast. High 38°, low 37°.

Pressure29.62 inHg

Wind18.1 mph N

Humidity78%

Visibility—

Dew point31°

Fri, 1339° / 36°

0.09

39 °

Port William, Friday, 13 November

Snow. High 39°, low 36°.

Pressure29.71 inHg

Wind14.4 mph N

Humidity78%

Visibility—

Dew point32°

Sat, 1439° / 37°

39 °

Port William, Saturday, 14 November

Mostly clear. High 39°, low 37°.

Pressure29.59 inHg

Wind27.4 mph N

Humidity68%

Visibility—

Dew point28°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 1537° / 32°

0.14

37 °

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°

0.12

37 °

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°

0.1

37 °

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°

0.14

37 °

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°

0.17

38 °

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)

Fri, 2038° / 33°

0.17

38 °

Port William, Friday, 20 November

Climate normal for this date — 60-year average.

Average high38°

Average low33°

Average precipitation0.17 in

Chance of precipitation50%

Record high45° (1967)

Record low20° (1960)

Sat, 2138° / 32°

0.21

38 °

Port William, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high38°

Average low32°

Average precipitation0.21 in

Chance of precipitation58%

Record high46° (1978)

Record low10° (2011)

Sun, 2237° / 31°

0.15

37 °

Port William, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high37°

Average low31°

Average precipitation0.15 in

Chance of precipitation50%

Record high46° (2002)

Record low3° (2011)

Mon, 2336° / 31°

0.16

36 °

Port William, Monday, 23 November

Climate normal for this date — 60-year average.

Average high36°

Average low31°

Average precipitation0.16 in

Chance of precipitation45%

Record high47° (2002)

Record low9° (1988)

Tue, 2436° / 31°

0.11

36 °

Port William, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high36°

Average low31°

Average precipitation0.11 in

Chance of precipitation43%

Record high44° (2002)

Record low12° (1994)

Wed, 2537° / 31°

0.16

37 °

Port William, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high37°

Average low31°

Average precipitation0.16 in

Chance of precipitation52%

Record high45° (2002)

Record low7° (1963)

Thu, 2636° / 31°

0.19

36 °

Port William, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high36°

Average low31°

Average precipitation0.19 in

Chance of precipitation50%

Record high47° (1981)

Record low6° (1963)

Fri, 2737° / 32°

0.17

37 °

Port William, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°

Average low32°

Average precipitation0.17 in

Chance of precipitation60%

Record high46° (2019)

Record low11° (1963)

Sat, 2837° / 31°

0.18

37 °

Port William, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high37°

Average low31°

Average precipitation0.18 in

Chance of precipitation53%

Record high48° (2019)

Record low8° (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.