As of 07:10 PST

Weather in Discovery Bay, WA

50°

Discovery Bay, Sunday, 15 November, 07:10

Overcast. Feels like 49°. High 53°, low 45°.

Pressure29.71 inHg

Wind9.2 mph S

Humidity93%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Discovery Bay, WA: average high 49°, average low 40.3°. That is 1.2° above the climate normal for November. Precipitation is expected on 8 days (about 4.9 inches), against a normal of 10 days and 4.0 inches. The warmest day looks like 15 November (53.3°), the coolest 17 November (35.5°).

49°/40.3°

Average high / low

+1.2°

Above normal

8 / 10

Wet days / normal

4.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 November – 24 November	48.6°	47.5°	+0.7°
25 November – 4 December	49.6°	45.4°	+2.3°
5 December – 14 December	at normal	44.4°	—

November records over 66 years

64°4 November 1980All-time high

9.5°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Marrowstone (10 mi).

Mon, 1652° / 38°

0.03

52 °

Discovery Bay, Monday, 16 November

Light rain. High 52°, low 38°.

Pressure30.06 inHg

Wind0.7 mph E

Humidity68%

Visibility6.2 mi

Dew point40°

Tue, 1749° / 36°

49 °

Discovery Bay, Tuesday, 17 November

Partly cloudy. High 49°, low 36°.

Pressure29.97 inHg

Wind10 mph SE

Humidity75%

Visibility6.2 mi

Dew point41°

Wed, 1849° / 39°

49 °

Discovery Bay, Wednesday, 18 November

Overcast. High 49°, low 39°.

Pressure29.94 inHg

Wind5.9 mph E

Humidity52%

Visibility6.2 mi

Dew point32°

Thu, 1948° / 38°

48 °

Discovery Bay, Thursday, 19 November

Clear. High 48°, low 38°.

Pressure30.15 inHg

Wind8.5 mph NW

Humidity52%

Visibility—

Dew point30°

Fri, 2047° / 37°

47 °

Discovery Bay, Friday, 20 November

Clear. High 47°, low 37°.

Pressure29.97 inHg

Wind5.6 mph W

Humidity55%

Visibility—

Dew point29°

Sat, 2146° / 40°

0.31

46 °

Discovery Bay, Saturday, 21 November

Rain. High 46°, low 40°.

Pressure29.91 inHg

Wind8.1 mph S

Humidity94%

Visibility—

Dew point40°

Sun, 2248° / 39°

0.19

48 °

Discovery Bay, Sunday, 22 November

Light rain. High 48°, low 39°.

Pressure29.83 inHg

Wind9.6 mph SE

Humidity82%

Visibility—

Dew point39°

Mon, 2344° / 37°

1.23

44 °

Discovery Bay, Monday, 23 November

Rain. High 44°, low 37°.

Pressure29.50 inHg

Wind7.8 mph SE

Humidity97%

Visibility—

Dew point40°

Tue, 2451° / 45°

1.72

51 °

Discovery Bay, Tuesday, 24 November

Heavy rain. High 51°, low 45°.

Pressure29.44 inHg

Wind13.8 mph SE

Humidity92%

Visibility—

Dew point46°

Wed, 2546° / 39°

0.6

46 °

Discovery Bay, Wednesday, 25 November

Rain. High 46°, low 39°.

Pressure30.06 inHg

Wind13.7 mph SE

Humidity82%

Visibility—

Dew point40°

Thu, 2651° / 42°

0.14

51 °

Discovery Bay, Thursday, 26 November

Light rain. High 51°, low 42°.

Pressure30.09 inHg

Wind5.1 mph S

Humidity88%

Visibility—

Dew point44°

Fri, 2752° / 44°

0.31

52 °

Discovery Bay, Friday, 27 November

Rain. High 52°, low 44°.

Pressure29.74 inHg

Wind6.5 mph S

Humidity91%

Visibility—

Dew point46°

Sat, 2851° / 44°

51 °

Discovery Bay, Saturday, 28 November

Partly cloudy. High 51°, low 44°.

Pressure29.85 inHg

Wind4.3 mph SW

Humidity86%

Visibility—

Dew point45°

Sun, 2948° / 42°

0.02

48 °

Discovery Bay, Sunday, 29 November

Light rain. High 48°, low 42°.

Pressure30.27 inHg

Wind4.4 mph SW

Humidity88%

Visibility—

Dew point44°

Mon, 3050° / 40°

50 °

Discovery Bay, Monday, 30 November

Overcast. High 50°, low 40°.

Pressure30.36 inHg

Wind4 mph SW

Humidity77%

Visibility—

Dew point42°

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

Tue, 0146° / 39°

0.24

46 °

Discovery Bay, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high46°

Average low39°

Average precipitation0.24 in

Chance of precipitation67%

Record high55° (2021)

Record low15° (1985)

Wed, 0245° / 39°

0.26

45 °

Discovery Bay, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high45°

Average low39°

Average precipitation0.26 in

Chance of precipitation72%

Record high53° (1977)

Record low24° (2022)

Thu, 0345° / 39°

0.3

45 °

Discovery Bay, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high45°

Average low39°

Average precipitation0.3 in

Chance of precipitation63%

Record high55° (2007)

Record low29° (1984)

Fri, 0445° / 38°

0.23

45 °

Discovery Bay, Friday, 4 December

Climate normal for this date — 60-year average.

Average high45°

Average low38°

Average precipitation0.23 in

Chance of precipitation58%

Record high56° (2023)

Record low24° (1994)

Sat, 0544° / 38°

0.21

44 °

Discovery Bay, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high44°

Average low38°

Average precipitation0.21 in

Chance of precipitation60%

Record high57° (2023)

Record low22° (1994)

Sun, 0645° / 38°

0.17

45 °

Discovery Bay, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high45°

Average low38°

Average precipitation0.17 in

Chance of precipitation52%

Record high53° (2025)

Record low26° (1972)

Mon, 0744° / 38°

0.19

44 °

Discovery Bay, Monday, 7 December

Climate normal for this date — 60-year average.

Average high44°

Average low38°

Average precipitation0.19 in

Chance of precipitation58%

Record high53° (1962)

Record low20° (1972)

Tue, 0844° / 38°

0.23

44 °

Discovery Bay, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high44°

Average low38°

Average precipitation0.23 in

Chance of precipitation62%

Record high55° (2015)

Record low22° (1972)

Wed, 0944° / 38°

0.26

44 °

Discovery Bay, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high44°

Average low38°

Average precipitation0.26 in

Chance of precipitation65%

Record high55° (2014)

Record low27° (2009)

Thu, 1045° / 39°

0.31

45 °

Discovery Bay, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high45°

Average low39°

Average precipitation0.31 in

Chance of precipitation77%

Record high56° (2014)

Record low25° (1972)

Fri, 1145° / 39°

0.29

45 °

Discovery Bay, Friday, 11 December

Climate normal for this date — 60-year average.

Average high45°

Average low39°

Average precipitation0.29 in

Chance of precipitation68%

Record high52° (2004)

Record low27° (1971)

Sat, 1244° / 38°

0.26

44 °

Discovery Bay, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high44°

Average low38°

Average precipitation0.26 in

Chance of precipitation65%

Record high52° (1995)

Record low28° (2000)

Sun, 1344° / 39°

0.24

44 °

Discovery Bay, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high44°

Average low39°

Average precipitation0.24 in

Chance of precipitation68%

Record high53° (2025)

Record low29° (1972)

Mon, 1445° / 39°

0.28

45 °

Discovery Bay, Monday, 14 December

Climate normal for this date — 60-year average.

Average high45°

Average low39°

Average precipitation0.28 in

Chance of precipitation77%

Record high54° (2018)

Record low29° (2008)

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 Discovery Bay, WA 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 Discovery Bay, WA 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.