As of 07:28 AKDT

Weather in Port William, AK

42°

Port William, Saturday, 31 October, 07:28

Overcast. Feels like 39°. High 45°, low 42°.

Pressure29.18 inHg

Wind4.8 mph SE

Humidity81%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Port William, AK: average high 42°, average low 38.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 11 days (about 4.8 inches), against a normal of 8 days and 2.4 inches. The warmest day looks like 3 November (46°), the coolest 13 November (31.3°).

42°/38.9°

Average high / low

+1.8°

Above normal

11 / 8

Wet days / normal

4.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
31 October – 9 November	43.8°	39.1°	+2.6°
10 November – 19 November	39.1°	37.8°	+0.7°
20 November – 29 November	at normal	36.6°	—

October records over 66 years

56.3°8 October 2025All-time high

13.6°26 October 1985All-time low

Sun, 0144° / 43°

0.22

44 °

Port William, Sunday, 1 November

Light rain. High 44°, low 43°.

Pressure29.50 inHg

Wind7.1 mph N

Humidity84%

Visibility6.2 mi

Dew point39°

Mon, 0244° / 41°

0.05

44 °

Port William, Monday, 2 November

Light rain. High 44°, low 41°.

Pressure29.44 inHg

Wind16.8 mph SE

Humidity74%

Visibility6.2 mi

Dew point34°

Tue, 0346° / 43°

0.85

46 °

Port William, Tuesday, 3 November

Rain. High 46°, low 43°.

Pressure29.12 inHg

Wind36.5 mph E

Humidity91%

Visibility5.6 mi

Dew point41°

Wed, 0445° / 43°

0.09

45 °

Port William, Wednesday, 4 November

Light rain. High 45°, low 43°.

Pressure29.15 inHg

Wind19.5 mph SE

Humidity82%

Visibility—

Dew point39°

Thu, 0544° / 40°

1.74

44 °

Port William, Thursday, 5 November

Rain. High 44°, low 40°.

Pressure28.73 inHg

Wind38.7 mph N

Humidity94%

Visibility—

Dew point40°

Fri, 0644° / 40°

0.87

44 °

Port William, Friday, 6 November

Rain. High 44°, low 40°.

Pressure28.97 inHg

Wind29.9 mph SW

Humidity79%

Visibility—

Dew point36°

Sat, 0741° / 38°

0.06

41 °

Port William, Saturday, 7 November

Light rain. High 41°, low 38°.

Pressure29.35 inHg

Wind11.4 mph SW

Humidity84%

Visibility—

Dew point35°

Sun, 0843° / 40°

0.06

43 °

Port William, Sunday, 8 November

Light rain. High 43°, low 40°.

Pressure29.47 inHg

Wind23.1 mph SE

Humidity75%

Visibility—

Dew point35°

Mon, 0943° / 41°

0.14

43 °

Port William, Monday, 9 November

Light rain. High 43°, low 41°.

Pressure29.21 inHg

Wind28.5 mph NE

Humidity77%

Visibility—

Dew point36°

Tue, 1040° / 37°

40 °

Port William, Tuesday, 10 November

Overcast. High 40°, low 37°.

Pressure28.82 inHg

Wind32.2 mph N

Humidity70%

Visibility—

Dew point29°

Wed, 1136° / 32°

36 °

Port William, Wednesday, 11 November

Overcast. High 36°, low 32°.

Pressure29.06 inHg

Wind21.5 mph NW

Humidity61%

Visibility—

Dew point20°

Thu, 1234° / 33°

34 °

Port William, Thursday, 12 November

Clear. High 34°, low 33°.

Pressure29.38 inHg

Wind13.2 mph NW

Humidity50%

Visibility—

Dew point17°

Fri, 1339° / 31°

0.05

39 °

Port William, Friday, 13 November

Light rain. High 39°, low 31°.

Pressure29.47 inHg

Wind20.1 mph E

Humidity66%

Visibility—

Dew point23°

Sat, 1443° / 40°

0.59

43 °

Port William, Saturday, 14 November

Rain. High 43°, low 40°.

Pressure29.38 inHg

Wind30 mph E

Humidity93%

Visibility—

Dew point38°

Sun, 1542° / 40°

0.03

42 °

Port William, Sunday, 15 November

Light rain. High 42°, low 40°.

Pressure29.83 inHg

Wind15.2 mph NE

Humidity80%

Visibility—

Dew point35°

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

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)

Sun, 2935° / 29°

0.16

35 °

Port William, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high35°

Average low29°

Average precipitation0.16 in

Chance of precipitation43%

Record high46° (2002)

Record low9° (1971)

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.