Monthly outlook for Moonstone, CA: average high 61.5°, average low 51°. That is 0° below the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 2.0 inches. The warmest day looks like 8 October (83.3°), the coolest 13 October (45.9°).
61.5°/51°
Average high / low
−0°
Below normal
3 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
63.4°
62.1°
+0.7°
18 October – 27 October
58.3°
60.5°
-1.2°
28 October – 6 November
at normal
58.7°
—
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 (2 mi).
Fri, 0977° / 51°0
77 °
Moonstone, Friday, 9 October
Partly cloudy. High 77°, low 51°.
Pressure29.85 inHg
Wind6 mph NW
Humidity89%
Visibility0.6 mi
Dew point54°
Sat, 1057° / 53°0
57 °
Moonstone, Saturday, 10 October
Clear. High 57°, low 53°.
Pressure29.74 inHg
Wind24.3 mph N
Humidity62%
Visibility6.2 mi
Dew point44°
Sun, 1157° / 52°0
57 °
Moonstone, Sunday, 11 October
Clear. High 57°, low 52°.
Pressure29.65 inHg
Wind21.9 mph N
Humidity72%
Visibility6.2 mi
Dew point47°
Mon, 1259° / 48°0
59 °
Moonstone, Monday, 12 October
Clear. High 59°, low 48°.
Pressure29.83 inHg
Wind11.6 mph N
Humidity61%
Visibility—
Dew point44°
Tue, 1357° / 46°0.08
57 °
Moonstone, Tuesday, 13 October
Light rain. High 57°, low 46°.
Pressure29.97 inHg
Wind8.1 mph N
Humidity77%
Visibility—
Dew point49°
Wed, 1458° / 51°0
58 °
Moonstone, Wednesday, 14 October
Clear. High 58°, low 51°.
Pressure30.06 inHg
Wind19.8 mph N
Humidity67%
Visibility—
Dew point46°
Thu, 1560° / 46°0
60 °
Moonstone, Thursday, 15 October
Clear. High 60°, low 46°.
Pressure30.09 inHg
Wind13.3 mph N
Humidity58%
Visibility—
Dew point43°
Fri, 1662° / 52°0
62 °
Moonstone, Friday, 16 October
Partly cloudy. High 62°, low 52°.
Pressure30.21 inHg
Wind10.4 mph N
Humidity59%
Visibility—
Dew point44°
Sat, 1764° / 52°0
64 °
Moonstone, Saturday, 17 October
Partly cloudy. High 64°, low 52°.
Pressure30.09 inHg
Wind6.4 mph S
Humidity47%
Visibility—
Dew point41°
Sun, 1860° / 54°0
60 °
Moonstone, Sunday, 18 October
Overcast. High 60°, low 54°.
Pressure30.06 inHg
Wind7.9 mph NW
Humidity68%
Visibility—
Dew point48°
Mon, 1962° / 52°0
62 °
Moonstone, Monday, 19 October
Clear. High 62°, low 52°.
Pressure30.03 inHg
Wind8.4 mph N
Humidity61%
Visibility—
Dew point46°
Tue, 2060° / 53°0
60 °
Moonstone, Tuesday, 20 October
Overcast. High 60°, low 53°.
Pressure30.09 inHg
Wind8.5 mph NW
Humidity76%
Visibility—
Dew point50°
Wed, 2157° / 54°0.03
57 °
Moonstone, Wednesday, 21 October
Light rain. High 57°, low 54°.
Pressure30.00 inHg
Wind5.3 mph SE
Humidity94%
Visibility—
Dew point55°
Thu, 2257° / 53°0.69
57 °
Moonstone, Thursday, 22 October
Rain. High 57°, low 53°.
Pressure29.80 inHg
Wind20.5 mph S
Humidity90%
Visibility—
Dew point53°
Fri, 2353° / 51°0.44
53 °
Moonstone, Friday, 23 October
Rain. High 53°, low 51°.
Pressure29.91 inHg
Wind7.2 mph S
Humidity76%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2461° / 49°0.23
61 °
Moonstone, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high61°
Average low49°
Average precipitation0.23 in
Chance of precipitation30%
Record high76° (2017)
Record low41° (1961)
Sun, 2561° / 48°0.24
61 °
Moonstone, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.24 in
Chance of precipitation33%
Record high78° (2003)
Record low41° (2022)
Mon, 2660° / 49°0.18
60 °
Moonstone, Monday, 26 October
Climate normal for this date — 60-year average.
Average high60°
Average low49°
Average precipitation0.18 in
Chance of precipitation37%
Record high81° (2003)
Record low40° (2023)
Tue, 2760° / 48°0.14
60 °
Moonstone, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.14 in
Chance of precipitation28%
Record high79° (2003)
Record low39° (2023)
Wed, 2859° / 48°0.19
59 °
Moonstone, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.19 in
Chance of precipitation35%
Record high75° (2003)
Record low41° (2023)
Thu, 2959° / 48°0.19
59 °
Moonstone, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.19 in
Chance of precipitation30%
Record high72° (1993)
Record low37° (2019)
Fri, 3059° / 48°0.19
59 °
Moonstone, Friday, 30 October
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.19 in
Chance of precipitation33%
Record high71° (1967)
Record low37° (2002)
Sat, 3159° / 48°0.14
59 °
Moonstone, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.14 in
Chance of precipitation23%
Record high74° (1966)
Record low38° (2002)
Sun, 0159° / 47°0.21
59 °
Moonstone, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.21 in
Chance of precipitation32%
Record high71° (1966)
Record low37° (2019)
Mon, 0259° / 48°0.19
59 °
Moonstone, 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 °
Moonstone, 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 °
Moonstone, 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 °
Moonstone, 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 °
Moonstone, 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)
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 Moonstone, 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 Moonstone, 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.