As of 23:25 PDT

Weather in Belmont, CA

60°

Belmont, Saturday, 8 August, 23:25

Mostly clear. Feels like 60°. High 85°, low 59°.

Pressure29.88 inHg

Wind2 mph NW

Humidity86%

Visibility6.2 mi

Dew point56°

See detailed hourly forecast

Monthly outlook for Belmont, CA: average high 73.2°, average low 55.4°. That is 0.5° below 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 8 August (84.9°), the coolest 19 August (54°).

73.2°/55.4°

Average high / low

−0.5°

Below normal

0 / 0

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	75.4°	74.5°	+0.5°
18 August – 27 August	69.4°	74°	-2.5°
28 August – 6 September	at normal	75.7°	—

August records over 66 years

96.6°14 August 2020All-time high

52.2°10 August 1960All-time low

Sun, 0984° / 61°

84 °

Belmont, Sunday, 9 August

Clear. High 84°, low 61°.

Pressure29.85 inHg

Wind6.4 mph NW

Humidity50%

Visibility6.2 mi

Dew point52°

Mon, 1083° / 55°

83 °

Belmont, Monday, 10 August

Overcast. High 83°, low 55°.

Pressure29.88 inHg

Wind6.1 mph W

Humidity53%

Visibility6.2 mi

Dew point53°

Tue, 1175° / 55°

75 °

Belmont, Tuesday, 11 August

Clear. High 75°, low 55°.

Pressure29.94 inHg

Wind5.4 mph W

Humidity54%

Visibility6.2 mi

Dew point53°

Wed, 1272° / 55°

72 °

Belmont, Wednesday, 12 August

Overcast. High 72°, low 55°.

Pressure29.85 inHg

Wind6.2 mph W

Humidity59%

Visibility6.2 mi

Dew point54°

Thu, 1372° / 56°

72 °

Belmont, Thursday, 13 August

Overcast. High 72°, low 56°.

Pressure29.85 inHg

Wind9.6 mph W

Humidity56%

Visibility—

Dew point54°

Fri, 1471° / 54°

71 °

Belmont, Friday, 14 August

Clear. High 71°, low 54°.

Pressure29.94 inHg

Wind8 mph W

Humidity58%

Visibility—

Dew point53°

Sat, 1571° / 55°

71 °

Belmont, Saturday, 15 August

Clear. High 71°, low 55°.

Pressure30.03 inHg

Wind7.8 mph NW

Humidity56%

Visibility—

Dew point53°

Sun, 1671° / 55°

71 °

Belmont, Sunday, 16 August

Overcast. High 71°, low 55°.

Pressure30.06 inHg

Wind8.3 mph W

Humidity54%

Visibility—

Dew point52°

Mon, 1770° / 56°

70 °

Belmont, Monday, 17 August

Overcast. High 70°, low 56°.

Pressure30.06 inHg

Wind8.4 mph NW

Humidity57%

Visibility—

Dew point53°

Tue, 1871° / 55°

71 °

Belmont, Tuesday, 18 August

Partly cloudy. High 71°, low 55°.

Pressure30.03 inHg

Wind12.3 mph NW

Humidity53%

Visibility—

Dew point51°

Wed, 1970° / 54°

70 °

Belmont, Wednesday, 19 August

Clear. High 70°, low 54°.

Pressure30.00 inHg

Wind9.3 mph W

Humidity52%

Visibility—

Dew point50°

Thu, 2065° / 55°

65 °

Belmont, Thursday, 20 August

Overcast. High 65°, low 55°.

Pressure29.94 inHg

Wind8.2 mph W

Humidity66%

Visibility—

Dew point53°

Fri, 2171° / 54°

71 °

Belmont, Friday, 21 August

Clear. High 71°, low 54°.

Pressure29.88 inHg

Wind8.5 mph W

Humidity58%

Visibility—

Dew point53°

Sat, 2270° / 55°

70 °

Belmont, Saturday, 22 August

Overcast. High 70°, low 55°.

Pressure29.94 inHg

Wind8.1 mph W

Humidity60%

Visibility—

Dew point54°

Sun, 2370° / 54°

70 °

Belmont, Sunday, 23 August

Mostly clear. High 70°, low 54°.

Pressure29.94 inHg

Wind7.5 mph NW

Humidity58%

Visibility—

Dew point53°

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

Mon, 2474° / 58°

74 °

Belmont, Monday, 24 August

Climate normal for this date — 60-year average.

Average high74°

Average low58°

Average precipitation0 in

Chance of precipitation2%

Record high94° (2010)

Record low53° (1970)

Tue, 2574° / 58°

74 °

Belmont, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high74°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high86° (2010)

Record low54° (1970)

Wed, 2675° / 57°

75 °

Belmont, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high75°

Average low57°

Average precipitation0 in

Chance of precipitation0%

Record high88° (2017)

Record low53° (1970)

Thu, 2776° / 58°

76 °

Belmont, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high92° (2017)

Record low54° (1960)

Fri, 2876° / 58°

76 °

Belmont, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high96° (2021)

Record low54° (1970)

Sat, 2975° / 58°

75 °

Belmont, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high75°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high95° (1968)

Record low54° (1985)

Sun, 3074° / 58°

74 °

Belmont, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high74°

Average low58°

Average precipitation0 in

Chance of precipitation2%

Record high89° (2023)

Record low54° (2010)

Mon, 3175° / 58°

75 °

Belmont, Monday, 31 August

Climate normal for this date — 60-year average.

Average high75°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high90° (2017)

Record low53° (1960)

Tue, 0176° / 58°

76 °

Belmont, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation2%

Record high103° (2017)

Record low53° (1970)

Wed, 0276° / 58°

76 °

Belmont, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high105° (2017)

Record low53° (1970)

Thu, 0376° / 58°

76 °

Belmont, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high94° (2017)

Record low53° (1970)

Fri, 0476° / 58°

76 °

Belmont, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high92° (2022)

Record low53° (1960)

Sat, 0577° / 58°

77 °

Belmont, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high100° (2022)

Record low53° (2010)

Sun, 0677° / 58°

77 °

Belmont, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°

Average low58°

Average precipitation0 in

Chance of precipitation0%

Record high106° (2022)

Record low53° (1973)

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 Belmont, 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 Belmont, 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.