Monthly outlook for Serrano, CA: average high 78°, average low 56.5°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 8 October (88.7°), the coolest 11 October (48.8°).
78°/56.5°
Average high / low
+2.1°
Above normal
2 / 1
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
76°
74.8°
+0.7°
18 October – 27 October
81.5°
73.1°
+4.7°
28 October – 6 November
at normal
70.6°
—
October records over 66 years
99.7°1 October 1980All-time high
38.5°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Morro Bay (11 mi).
Fri, 0973° / 52°0
73 °
Serrano, Friday, 9 October
Mostly clear. High 73°, low 52°.
Pressure29.80 inHg
Wind5.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point58°
Sat, 1073° / 52°0
73 °
Serrano, Saturday, 10 October
Partly cloudy. High 73°, low 52°.
Pressure29.71 inHg
Wind4.4 mph W
Humidity63%
Visibility6.2 mi
Dew point55°
Sun, 1167° / 49°0.06
67 °
Serrano, Sunday, 11 October
Light rain. High 67°, low 49°.
Pressure29.59 inHg
Wind11.3 mph W
Humidity54%
Visibility5.3 mi
Dew point46°
Mon, 1265° / 55°0.12
65 °
Serrano, Monday, 12 October
Light rain. High 65°, low 55°.
Pressure29.88 inHg
Wind8.5 mph SW
Humidity62%
Visibility5.5 mi
Dew point48°
Tue, 1371° / 49°0
71 °
Serrano, Tuesday, 13 October
Clear. High 71°, low 49°.
Pressure30.06 inHg
Wind9.2 mph W
Humidity46%
Visibility—
Dew point45°
Wed, 1476° / 51°0
76 °
Serrano, Wednesday, 14 October
Clear. High 76°, low 51°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity30%
Visibility—
Dew point37°
Thu, 1581° / 57°0
81 °
Serrano, Thursday, 15 October
Clear. High 81°, low 57°.
Pressure30.00 inHg
Wind8.9 mph NE
Humidity23%
Visibility—
Dew point33°
Fri, 1681° / 60°0
81 °
Serrano, Friday, 16 October
Clear. High 81°, low 60°.
Pressure30.06 inHg
Wind7.4 mph W
Humidity17%
Visibility—
Dew point28°
Sat, 1784° / 60°0
84 °
Serrano, Saturday, 17 October
Clear. High 84°, low 60°.
Pressure30.09 inHg
Wind8 mph NW
Humidity11%
Visibility—
Dew point20°
Sun, 1881° / 60°0
81 °
Serrano, Sunday, 18 October
Clear. High 81°, low 60°.
Pressure30.06 inHg
Wind7.6 mph W
Humidity12%
Visibility—
Dew point21°
Mon, 1980° / 58°0
80 °
Serrano, Monday, 19 October
Clear. High 80°, low 58°.
Pressure30.03 inHg
Wind4.6 mph W
Humidity12%
Visibility—
Dew point19°
Tue, 2081° / 58°0
81 °
Serrano, Tuesday, 20 October
Clear. High 81°, low 58°.
Pressure30.00 inHg
Wind5.3 mph W
Humidity13%
Visibility—
Dew point22°
Wed, 2181° / 59°0
81 °
Serrano, Wednesday, 21 October
Clear. High 81°, low 59°.
Pressure29.97 inHg
Wind5.3 mph W
Humidity14%
Visibility—
Dew point24°
Thu, 2283° / 61°0
83 °
Serrano, Thursday, 22 October
Clear. High 83°, low 61°.
Pressure30.00 inHg
Wind5.9 mph W
Humidity11%
Visibility—
Dew point20°
Fri, 2382° / 61°0
82 °
Serrano, Friday, 23 October
Clear. High 82°, low 61°.
Pressure29.94 inHg
Wind6.5 mph W
Humidity12%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2474° / 55°0.01
74 °
Serrano, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high74°
Average low55°
Average precipitation0.01 in
Chance of precipitation8%
Record high99° (2017)
Record low47° (1975)
Sun, 2573° / 55°0.04
73 °
Serrano, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.04 in
Chance of precipitation8%
Record high90° (2019)
Record low47° (1971)
Mon, 2672° / 54°0.06
72 °
Serrano, Monday, 26 October
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.06 in
Chance of precipitation7%
Record high88° (1983)
Record low46° (2022)
Tue, 2772° / 53°0.01
72 °
Serrano, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high89° (2003)
Record low45° (2004)
Wed, 2871° / 54°0.04
71 °
Serrano, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.04 in
Chance of precipitation8%
Record high86° (2003)
Record low46° (2004)
Thu, 2970° / 53°0.06
70 °
Serrano, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.06 in
Chance of precipitation12%
Record high84° (1965)
Record low43° (1971)
Fri, 3069° / 52°0.06
69 °
Serrano, Friday, 30 October
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.06 in
Chance of precipitation13%
Record high85° (1966)
Record low38° (1971)
Sat, 3171° / 52°0.02
71 °
Serrano, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.02 in
Chance of precipitation10%
Record high85° (1966)
Record low42° (2024)
Sun, 0172° / 52°0.02
72 °
Serrano, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high72°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high89° (1966)
Record low44° (2000)
Mon, 0272° / 53°0.02
72 °
Serrano, Monday, 2 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high90° (1997)
Record low44° (2003)
Tue, 0371° / 52°0.01
71 °
Serrano, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.01 in
Chance of precipitation7%
Record high85° (1997)
Record low44° (1990)
Wed, 0471° / 52°0.03
71 °
Serrano, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.03 in
Chance of precipitation10%
Record high86° (1976)
Record low44° (1994)
Thu, 0569° / 52°0.03
69 °
Serrano, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.03 in
Chance of precipitation10%
Record high87° (2012)
Record low43° (2003)
Fri, 0669° / 52°0.02
69 °
Serrano, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.02 in
Chance of precipitation7%
Record high83° (1991)
Record low45° (1996)
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 Serrano, 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 Serrano, 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.