As of 00:14 PDT

Weather in Chula Vista, CA

72°

Chula Vista, Sunday, 9 August, 00:14

Clear. Feels like 72°. High 87°, low 69°.

Pressure29.88 inHg

Wind1 mph SW

Humidity86%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

Monthly outlook for Chula Vista, CA: average high 82.5°, average low 72.7°. That is 2.5° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 9 August (86.6°), the coolest 10 August (68.6°).

82.5°/72.7°

Average high / low

+2.5°

Above normal

1 / 0

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	82.3°	78.1°	+2.4°
19 August – 28 August	82.8°	78.7°	+2.3°
29 August – 7 September	at normal	79.7°	—

August records over 66 years

95.5°31 August 2017All-time high

55.8°1 August 2013All-time low

Mon, 1086° / 69°

86 °

Chula Vista, Monday, 10 August

Clear. High 86°, low 69°.

Pressure29.91 inHg

Wind8.4 mph SW

Humidity51%

Visibility6.2 mi

Dew point62°

Tue, 1184° / 75°

84 °

Chula Vista, Tuesday, 11 August

Clear. High 84°, low 75°.

Pressure29.94 inHg

Wind8.2 mph W

Humidity47%

Visibility6.2 mi

Dew point60°

Wed, 1282° / 75°

82 °

Chula Vista, Wednesday, 12 August

Clear. High 82°, low 75°.

Pressure29.88 inHg

Wind8.3 mph W

Humidity44%

Visibility6.2 mi

Dew point58°

Thu, 1379° / 72°

79 °

Chula Vista, Thursday, 13 August

Overcast. High 79°, low 72°.

Pressure29.94 inHg

Wind9.1 mph W

Humidity61%

Visibility—

Dew point61°

Fri, 1479° / 71°

79 °

Chula Vista, Friday, 14 August

Overcast. High 79°, low 71°.

Pressure29.97 inHg

Wind9.9 mph W

Humidity60%

Visibility—

Dew point61°

Sat, 1578° / 73°

0.06

78 °

Chula Vista, Saturday, 15 August

Light rain. High 78°, low 73°.

Pressure30.00 inHg

Wind5.7 mph NW

Humidity62%

Visibility—

Dew point62°

Sun, 1682° / 73°

82 °

Chula Vista, Sunday, 16 August

Overcast. High 82°, low 73°.

Pressure30.06 inHg

Wind9.4 mph W

Humidity59%

Visibility—

Dew point63°

Mon, 1784° / 73°

84 °

Chula Vista, Monday, 17 August

Overcast. High 84°, low 73°.

Pressure30.06 inHg

Wind12 mph NW

Humidity47%

Visibility—

Dew point58°

Tue, 1882° / 73°

82 °

Chula Vista, Tuesday, 18 August

Mostly clear. High 82°, low 73°.

Pressure29.94 inHg

Wind9.5 mph W

Humidity50%

Visibility—

Dew point58°

Wed, 1980° / 72°

80 °

Chula Vista, Wednesday, 19 August

Overcast. High 80°, low 72°.

Pressure29.94 inHg

Wind10.1 mph SW

Humidity58%

Visibility—

Dew point61°

Thu, 2081° / 72°

81 °

Chula Vista, Thursday, 20 August

Overcast. High 81°, low 72°.

Pressure29.94 inHg

Wind9.1 mph W

Humidity57%

Visibility—

Dew point61°

Fri, 2183° / 73°

83 °

Chula Vista, Friday, 21 August

Clear. High 83°, low 73°.

Pressure29.91 inHg

Wind8.5 mph W

Humidity54%

Visibility—

Dew point61°

Sat, 2285° / 75°

85 °

Chula Vista, Saturday, 22 August

Clear. High 85°, low 75°.

Pressure29.94 inHg

Wind8.6 mph W

Humidity47%

Visibility—

Dew point59°

Sun, 2383° / 74°

83 °

Chula Vista, Sunday, 23 August

Clear. High 83°, low 74°.

Pressure29.91 inHg

Wind9.1 mph W

Humidity48%

Visibility—

Dew point59°

Mon, 2484° / 74°

84 °

Chula Vista, Monday, 24 August

Clear. High 84°, low 74°.

Pressure29.88 inHg

Wind9 mph W

Humidity48%

Visibility—

Dew point58°

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

Tue, 2579° / 65°

0.01

79 °

Chula Vista, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high79°

Average low65°

Average precipitation0.01 in

Chance of precipitation7%

Record high89° (1985)

Record low58° (1987)

Wed, 2680° / 65°

80 °

Chula Vista, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0 in

Chance of precipitation3%

Record high91° (2021)

Record low58° (1987)

Thu, 2780° / 65°

80 °

Chula Vista, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0 in

Chance of precipitation0%

Record high92° (2020)

Record low57° (1989)

Fri, 2880° / 65°

0.01

80 °

Chula Vista, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0.01 in

Chance of precipitation2%

Record high94° (2023)

Record low56° (1973)

Sat, 2980° / 66°

80 °

Chula Vista, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°

Average low66°

Average precipitation0 in

Chance of precipitation3%

Record high93° (2023)

Record low57° (2010)

Sun, 3080° / 66°

80 °

Chula Vista, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°

Average low66°

Average precipitation0 in

Chance of precipitation3%

Record high91° (2017)

Record low59° (2010)

Mon, 3179° / 65°

79 °

Chula Vista, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°

Average low65°

Average precipitation0 in

Chance of precipitation0%

Record high96° (2017)

Record low58° (1964)

Tue, 0179° / 65°

79 °

Chula Vista, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°

Average low65°

Average precipitation0 in

Chance of precipitation3%

Record high94° (2017)

Record low57° (1964)

Wed, 0279° / 65°

79 °

Chula Vista, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°

Average low65°

Average precipitation0 in

Chance of precipitation3%

Record high93° (2017)

Record low58° (1999)

Thu, 0380° / 66°

0.01

80 °

Chula Vista, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°

Average low66°

Average precipitation0.01 in

Chance of precipitation3%

Record high99° (1988)

Record low57° (1973)

Fri, 0480° / 65°

80 °

Chula Vista, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0 in

Chance of precipitation3%

Record high100° (1988)

Record low58° (1999)

Sat, 0580° / 65°

80 °

Chula Vista, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0 in

Chance of precipitation2%

Record high99° (2020)

Record low58° (1970)

Sun, 0680° / 66°

80 °

Chula Vista, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high80°

Average low66°

Average precipitation0 in

Chance of precipitation7%

Record high100° (2020)

Record low56° (1973)

Mon, 0780° / 65°

0.01

80 °

Chula Vista, Monday, 7 September

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0.01 in

Chance of precipitation3%

Record high99° (2024)

Record low57° (1964)

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 Chula Vista, 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 Chula Vista, 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.