Monthly outlook for Harbor Side, CA: average high 73.7°, average low 65.4°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 26 October (83.7°), the coolest 27 October (58.6°).
73.7°/65.4°
Average high / low
+2.1°
Above normal
4 / 2
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
73.8°
70.7°
+1.7°
5 November – 14 November
73.4°
68.5°
+2.8°
15 November – 24 November
at normal
66.9°
—
October records over 66 years
97.2°14 October 1961All-time high
45.7°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Imperial Beach (4 mi).
Tue, 2778° / 59°0
78 °
Harbor Side, Tuesday, 27 October
Clear. High 78°, low 59°.
Pressure29.97 inHg
Wind5.1 mph W
Humidity57%
Visibility6.2 mi
Dew point58°
Wed, 2873° / 59°0
73 °
Harbor Side, Wednesday, 28 October
Clear. High 73°, low 59°.
Pressure29.94 inHg
Wind4.1 mph W
Humidity61%
Visibility6.2 mi
Dew point58°
Thu, 2971° / 63°0
71 °
Harbor Side, Thursday, 29 October
Light rain. High 71°, low 63°.
Pressure29.91 inHg
Wind3.6 mph W
Humidity62%
Visibility6.2 mi
Dew point57°
Fri, 3070° / 64°0.05
70 °
Harbor Side, Friday, 30 October
Light rain. High 70°, low 64°.
Pressure29.94 inHg
Wind6 mph SW
Humidity66%
Visibility—
Dew point55°
Sat, 3170° / 63°0.02
70 °
Harbor Side, Saturday, 31 October
Light rain. High 70°, low 63°.
Pressure29.97 inHg
Wind9.3 mph SW
Humidity67%
Visibility—
Dew point56°
Sun, 0172° / 65°0.31
72 °
Harbor Side, Sunday, 1 November
Light rain. High 72°, low 65°.
Pressure29.88 inHg
Wind12.8 mph SE
Humidity66%
Visibility—
Dew point55°
Mon, 0273° / 70°0.26
73 °
Harbor Side, Monday, 2 November
Light rain. High 73°, low 70°.
Pressure29.91 inHg
Wind15.3 mph S
Humidity70%
Visibility—
Dew point62°
Tue, 0372° / 68°0.1
72 °
Harbor Side, Tuesday, 3 November
Light rain. High 72°, low 68°.
Pressure30.09 inHg
Wind8.5 mph NW
Humidity71%
Visibility—
Dew point61°
Wed, 0476° / 68°0
76 °
Harbor Side, Wednesday, 4 November
Overcast. High 76°, low 68°.
Pressure30.06 inHg
Wind11.3 mph NW
Humidity60%
Visibility—
Dew point57°
Thu, 0576° / 69°0
76 °
Harbor Side, Thursday, 5 November
Clear. High 76°, low 69°.
Pressure30.12 inHg
Wind11 mph NW
Humidity62%
Visibility—
Dew point59°
Fri, 0675° / 70°0
75 °
Harbor Side, Friday, 6 November
Light rain. High 75°, low 70°.
Pressure30.03 inHg
Wind11.3 mph NW
Humidity69%
Visibility—
Dew point63°
Sat, 0774° / 68°0
74 °
Harbor Side, Saturday, 7 November
Mostly clear. High 74°, low 68°.
Pressure29.97 inHg
Wind9.6 mph W
Humidity64%
Visibility—
Dew point59°
Sun, 0874° / 68°0
74 °
Harbor Side, Sunday, 8 November
Partly cloudy. High 74°, low 68°.
Pressure30.06 inHg
Wind9.7 mph W
Humidity67%
Visibility—
Dew point60°
Mon, 0972° / 67°0
72 °
Harbor Side, Monday, 9 November
Overcast. High 72°, low 67°.
Pressure30.09 inHg
Wind10.1 mph NW
Humidity65%
Visibility—
Dew point58°
Tue, 1069° / 66°0
69 °
Harbor Side, Tuesday, 10 November
Mostly clear. High 69°, low 66°.
Pressure29.97 inHg
Wind10.2 mph NW
Humidity60%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1169° / 55°0.06
69 °
Harbor Side, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.06 in
Chance of precipitation15%
Record high83° (2021)
Record low46° (2022)
Thu, 1269° / 55°0.08
69 °
Harbor Side, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.08 in
Chance of precipitation17%
Record high86° (2021)
Record low45° (2000)
Fri, 1369° / 54°0.02
69 °
Harbor Side, Friday, 13 November
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.02 in
Chance of precipitation10%
Record high83° (1975)
Record low46° (2000)
Sat, 1468° / 54°0.04
68 °
Harbor Side, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high68°
Average low54°
Average precipitation0.04 in
Chance of precipitation15%
Record high79° (2016)
Record low46° (2022)
Sun, 1568° / 54°0.05
68 °
Harbor Side, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high68°
Average low54°
Average precipitation0.05 in
Chance of precipitation17%
Record high86° (2008)
Record low45° (2022)
Mon, 1667° / 54°0.04
67 °
Harbor Side, Monday, 16 November
Climate normal for this date — 60-year average.
Average high67°
Average low54°
Average precipitation0.04 in
Chance of precipitation18%
Record high84° (2020)
Record low43° (2000)
Tue, 1767° / 54°0.04
67 °
Harbor Side, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high67°
Average low54°
Average precipitation0.04 in
Chance of precipitation10%
Record high85° (2019)
Record low45° (1961)
Wed, 1867° / 54°0.03
67 °
Harbor Side, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high67°
Average low54°
Average precipitation0.03 in
Chance of precipitation13%
Record high88° (2019)
Record low44° (1964)
Thu, 1967° / 53°0.04
67 °
Harbor Side, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high67°
Average low53°
Average precipitation0.04 in
Chance of precipitation10%
Record high81° (1989)
Record low40° (1994)
Fri, 2067° / 53°0.05
67 °
Harbor Side, Friday, 20 November
Climate normal for this date — 60-year average.
Average high67°
Average low53°
Average precipitation0.05 in
Chance of precipitation15%
Record high83° (2002)
Record low42° (1994)
Sat, 2166° / 53°0.09
66 °
Harbor Side, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high66°
Average low53°
Average precipitation0.09 in
Chance of precipitation23%
Record high80° (2015)
Record low43° (1979)
Sun, 2266° / 53°0.05
66 °
Harbor Side, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high66°
Average low53°
Average precipitation0.05 in
Chance of precipitation13%
Record high85° (2017)
Record low43° (1979)
Mon, 2366° / 52°0.02
66 °
Harbor Side, Monday, 23 November
Climate normal for this date — 60-year average.
Average high66°
Average low52°
Average precipitation0.02 in
Chance of precipitation7%
Record high84° (2017)
Record low45° (2011)
Tue, 2467° / 52°0.02
67 °
Harbor Side, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high81° (1975)
Record low45° (2022)
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 Harbor Side, 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 Harbor Side, 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.