Monthly outlook for Big Lagoon, CA: average high 56.4°, average low 51.5°. That is 2° below the climate normal for October. Precipitation is expected on 5 days (about 3.4 inches), against a normal of 5 days and 2.8 inches. The warmest day looks like 26 October (60.1°), the coolest 17 October (46°).
56.4°/51.5°
Average high / low
−2°
Below normal
5 / 5
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
56.8°
60.7°
-2.1°
27 October – 5 November
55.7°
58.9°
-1.8°
6 November – 15 November
at normal
57°
—
October records over 66 years
86.4°10 October 1991All-time high
36.5°29 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Clam Beach (11 mi).
Sun, 1855° / 52°0
55 °
Big Lagoon, Sunday, 18 October
Overcast. High 55°, low 52°.
Pressure30.06 inHg
Wind3.2 mph W
Humidity97%
Visibility0.1 mi
Dew point52°
Mon, 1955° / 51°0.01
55 °
Big Lagoon, Monday, 19 October
Light rain. High 55°, low 51°.
Pressure29.97 inHg
Wind5.8 mph SW
Humidity73%
Visibility6.2 mi
Dew point45°
Tue, 2055° / 50°0
55 °
Big Lagoon, Tuesday, 20 October
Overcast. High 55°, low 50°.
Pressure29.88 inHg
Wind4.7 mph SW
Humidity82%
Visibility6.2 mi
Dew point48°
Wed, 2158° / 52°0
58 °
Big Lagoon, Wednesday, 21 October
Overcast. High 58°, low 52°.
Pressure29.94 inHg
Wind0.5 mph SW
Humidity77%
Visibility6.2 mi
Dew point50°
Thu, 2255° / 53°0
55 °
Big Lagoon, Thursday, 22 October
Overcast. High 55°, low 53°.
Pressure30.09 inHg
Wind12.2 mph N
Humidity89%
Visibility—
Dew point51°
Fri, 2356° / 51°0
56 °
Big Lagoon, Friday, 23 October
Clear. High 56°, low 51°.
Pressure30.09 inHg
Wind5.7 mph NE
Humidity79%
Visibility—
Dew point49°
Sat, 2456° / 52°0
56 °
Big Lagoon, Saturday, 24 October
Overcast. High 56°, low 52°.
Pressure30.00 inHg
Wind7.4 mph SW
Humidity81%
Visibility—
Dew point50°
Sun, 2558° / 54°0
58 °
Big Lagoon, Sunday, 25 October
Overcast. High 58°, low 54°.
Pressure29.94 inHg
Wind6.4 mph N
Humidity72%
Visibility—
Dew point48°
Mon, 2660° / 53°0
60 °
Big Lagoon, Monday, 26 October
Mostly clear. High 60°, low 53°.
Pressure29.77 inHg
Wind7.6 mph N
Humidity65%
Visibility—
Dew point46°
Tue, 2758° / 54°0
58 °
Big Lagoon, Tuesday, 27 October
Overcast. High 58°, low 54°.
Pressure29.83 inHg
Wind10.9 mph S
Humidity70%
Visibility—
Dew point47°
Wed, 2855° / 51°1.11
55 °
Big Lagoon, Wednesday, 28 October
Rain. High 55°, low 51°.
Pressure29.97 inHg
Wind25.9 mph S
Humidity85%
Visibility—
Dew point50°
Thu, 2955° / 51°0.14
55 °
Big Lagoon, Thursday, 29 October
Light rain. High 55°, low 51°.
Pressure30.03 inHg
Wind12.9 mph SE
Humidity75%
Visibility—
Dew point47°
Fri, 3055° / 53°1.14
55 °
Big Lagoon, Friday, 30 October
Heavy rain. High 55°, low 53°.
Pressure29.80 inHg
Wind18.7 mph S
Humidity92%
Visibility—
Dew point51°
Sat, 3155° / 50°0.87
55 °
Big Lagoon, Saturday, 31 October
Rain. High 55°, low 50°.
Pressure29.91 inHg
Wind24.3 mph SW
Humidity78%
Visibility—
Dew point45°
Sun, 0155° / 50°0.13
55 °
Big Lagoon, Sunday, 1 November
Light rain. High 55°, low 50°.
Pressure30.12 inHg
Wind16.4 mph SE
Humidity70%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0259° / 48°0.19
59 °
Big Lagoon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.19 in
Chance of precipitation35%
Record high70° (1986)
Record low40° (1996)
Tue, 0359° / 48°0.18
59 °
Big Lagoon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.18 in
Chance of precipitation32%
Record high71° (2021)
Record low35° (1973)
Wed, 0458° / 48°0.18
58 °
Big Lagoon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.18 in
Chance of precipitation37%
Record high70° (1986)
Record low38° (2003)
Thu, 0558° / 48°0.26
58 °
Big Lagoon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.26 in
Chance of precipitation40%
Record high70° (2012)
Record low38° (1972)
Fri, 0658° / 48°0.29
58 °
Big Lagoon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.29 in
Chance of precipitation50%
Record high67° (1978)
Record low37° (2017)
Sat, 0757° / 47°0.24
57 °
Big Lagoon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation42%
Record high68° (2016)
Record low37° (2018)
Sun, 0857° / 47°0.24
57 °
Big Lagoon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation45%
Record high70° (1976)
Record low38° (1994)
Mon, 0956° / 47°0.25
56 °
Big Lagoon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.25 in
Chance of precipitation48%
Record high69° (1996)
Record low36° (2020)
Tue, 1057° / 47°0.22
57 °
Big Lagoon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.22 in
Chance of precipitation45%
Record high67° (1996)
Record low35° (2018)
Wed, 1158° / 46°0.25
58 °
Big Lagoon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.25 in
Chance of precipitation37%
Record high70° (2016)
Record low30° (1985)
Thu, 1257° / 47°0.24
57 °
Big Lagoon, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation45%
Record high69° (1974)
Record low33° (1985)
Fri, 1356° / 47°0.36
56 °
Big Lagoon, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.36 in
Chance of precipitation50%
Record high66° (1967)
Record low36° (1964)
Sat, 1456° / 46°0.2
56 °
Big Lagoon, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.2 in
Chance of precipitation38%
Record high65° (2025)
Record low33° (1964)
Sun, 1557° / 47°0.28
57 °
Big Lagoon, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.28 in
Chance of precipitation58%
Record high72° (2008)
Record low37° (2018)
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 Big Lagoon, 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 Big Lagoon, 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.