As of 05:39 PDT

Weather in Discovery Bay, CA

64°

Discovery Bay, Sunday, 9 August, 05:39

Clear. Feels like 63°. High 95°, low 64°.

Pressure29.83 inHg

Wind3.6 mph W

Humidity71%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

Monthly outlook for Discovery Bay, CA: average high 91.7°, average low 59.3°. That is 3.6° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 11 August (102.9°), the coolest 24 August (55.1°).

91.7°/59.3°

Average high / low

+3.6°

Above normal

0 / 0

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	92.3°	85.8°	+3.6°
19 August – 28 August	90.6°	84.8°	+3.3°
29 August – 7 September	at normal	86°	—

August records over 66 years

107.6°16 August 2020All-time high

52.3°29 August 1980All-time low

Climate normals and records are computed from the nearest reference point — Antioch (11 mi).

Mon, 1091° / 65°

91 °

Discovery Bay, Monday, 10 August

Partly cloudy. High 91°, low 65°.

Pressure29.83 inHg

Wind5.7 mph NW

Humidity15%

Visibility6.2 mi

Dew point41°

Tue, 11103° / 62°

103 °

Discovery Bay, Tuesday, 11 August

Clear. High 103°, low 62°.

Pressure29.88 inHg

Wind4 mph NW

Humidity18%

Visibility6.2 mi

Dew point43°

Wed, 12100° / 63°

100 °

Discovery Bay, Wednesday, 12 August

Clear. High 100°, low 63°.

Pressure29.80 inHg

Wind3.2 mph NW

Humidity20%

Visibility6.2 mi

Dew point45°

Thu, 1391° / 58°

91 °

Discovery Bay, Thursday, 13 August

Overcast. High 91°, low 58°.

Pressure29.77 inHg

Wind12.6 mph NW

Humidity23%

Visibility—

Dew point45°

Fri, 1490° / 57°

90 °

Discovery Bay, Friday, 14 August

Clear. High 90°, low 57°.

Pressure29.88 inHg

Wind11.8 mph NW

Humidity26%

Visibility—

Dew point47°

Sat, 1592° / 57°

92 °

Discovery Bay, Saturday, 15 August

Partly cloudy. High 92°, low 57°.

Pressure29.94 inHg

Wind12.7 mph W

Humidity22%

Visibility—

Dew point44°

Sun, 1688° / 60°

88 °

Discovery Bay, Sunday, 16 August

Overcast. High 88°, low 60°.

Pressure30.00 inHg

Wind15.7 mph W

Humidity28%

Visibility—

Dew point49°

Mon, 1786° / 55°

86 °

Discovery Bay, Monday, 17 August

Partly cloudy. High 86°, low 55°.

Pressure30.03 inHg

Wind12.6 mph W

Humidity26%

Visibility—

Dew point44°

Tue, 1887° / 57°

87 °

Discovery Bay, Tuesday, 18 August

Clear. High 87°, low 57°.

Pressure29.94 inHg

Wind13.3 mph W

Humidity32%

Visibility—

Dew point51°

Wed, 1989° / 63°

89 °

Discovery Bay, Wednesday, 19 August

Clear. High 89°, low 63°.

Pressure29.88 inHg

Wind15.2 mph W

Humidity32%

Visibility—

Dew point53°

Thu, 2088° / 61°

88 °

Discovery Bay, Thursday, 20 August

Overcast. High 88°, low 61°.

Pressure29.91 inHg

Wind14.4 mph W

Humidity34%

Visibility—

Dew point54°

Fri, 2189° / 58°

89 °

Discovery Bay, Friday, 21 August

Overcast. High 89°, low 58°.

Pressure29.88 inHg

Wind12.5 mph W

Humidity23%

Visibility—

Dew point43°

Sat, 2291° / 56°

91 °

Discovery Bay, Saturday, 22 August

Overcast. High 91°, low 56°.

Pressure29.88 inHg

Wind11.3 mph W

Humidity18%

Visibility—

Dew point38°

Sun, 2393° / 59°

93 °

Discovery Bay, Sunday, 23 August

Overcast. High 93°, low 59°.

Pressure29.85 inHg

Wind11.3 mph W

Humidity17%

Visibility—

Dew point38°

Mon, 2493° / 55°

93 °

Discovery Bay, Monday, 24 August

Clear. High 93°, low 55°.

Pressure29.80 inHg

Wind11.2 mph W

Humidity18%

Visibility—

Dew point40°

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

Tue, 2585° / 59°

85 °

Discovery Bay, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high99° (2010)

Record low54° (1960)

Wed, 2685° / 58°

85 °

Discovery Bay, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high85°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high99° (2017)

Record low54° (1970)

Thu, 2786° / 59°

86 °

Discovery Bay, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high103° (2017)

Record low53° (1960)

Fri, 2887° / 60°

87 °

Discovery Bay, Friday, 28 August

Climate normal for this date — 60-year average.

Average high87°

Average low60°

Average precipitation0 in

Chance of precipitation0%

Record high102° (2021)

Record low54° (1960)

Sat, 2985° / 59°

85 °

Discovery Bay, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high99° (2009)

Record low52° (1980)

Sun, 3085° / 60°

85 °

Discovery Bay, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°

Average low60°

Average precipitation0 in

Chance of precipitation3%

Record high99° (2025)

Record low53° (2010)

Mon, 3186° / 59°

86 °

Discovery Bay, Monday, 31 August

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high100° (2025)

Record low53° (1970)

Tue, 0187° / 59°

87 °

Discovery Bay, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high87°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high108° (2017)

Record low53° (1970)

Wed, 0286° / 60°

86 °

Discovery Bay, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high86°

Average low60°

Average precipitation0 in

Chance of precipitation0%

Record high107° (2017)

Record low53° (1960)

Thu, 0386° / 59°

86 °

Discovery Bay, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high102° (2017)

Record low52° (1970)

Fri, 0486° / 59°

86 °

Discovery Bay, Friday, 4 September

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation0%

Record high102° (2022)

Record low52° (1960)

Sat, 0586° / 59°

86 °

Discovery Bay, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation2%

Record high110° (2022)

Record low52° (2000)

Sun, 0686° / 59°

86 °

Discovery Bay, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high86°

Average low59°

Average precipitation0 in

Chance of precipitation2%

Record high113° (2022)

Record low53° (1973)

Mon, 0786° / 60°

86 °

Discovery Bay, Monday, 7 September

Climate normal for this date — 60-year average.

Average high86°

Average low60°

Average precipitation0 in

Chance of precipitation0%

Record high111° (2020)

Record low53° (2002)

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, CA 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, CA 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.