Monthly outlook for Juan, CA: average high 66°, average low 51.9°. That is 1° below the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 21 October (71.4°), the coolest 23 October (43.1°).
66°/51.9°
Average high / low
−1°
Below normal
2 / 1
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
65.6°
68.9°
-1.8°
31 October – 9 November
66.6°
65.3°
+0.7°
10 November – 19 November
at normal
60.8°
—
October records over 66 years
95.4°4 October 2024All-time high
25.2°30 October 2019All-time low
Thu, 2260° / 50°0.55
60 °
Juan, Thursday, 22 October
Heavy rain. High 60°, low 50°.
Pressure29.88 inHg
Wind7.6 mph SW
Humidity67%
Visibility6.2 mi
Dew point51°
Fri, 2359° / 43°0
59 °
Juan, Friday, 23 October
Clear. High 59°, low 43°.
Pressure29.97 inHg
Wind2.2 mph NE
Humidity53%
Visibility6.2 mi
Dew point40°
Sat, 2460° / 44°0.01
60 °
Juan, Saturday, 24 October
Light rain. High 60°, low 44°.
Pressure29.97 inHg
Wind7 mph NW
Humidity51%
Visibility6.2 mi
Dew point41°
Sun, 2563° / 47°0
63 °
Juan, Sunday, 25 October
Clear. High 63°, low 47°.
Pressure30.09 inHg
Wind3.2 mph N
Humidity47%
Visibility6.2 mi
Dew point41°
Mon, 2665° / 47°0
65 °
Juan, Monday, 26 October
Clear. High 65°, low 47°.
Pressure30.15 inHg
Wind7.9 mph N
Humidity47%
Visibility—
Dew point39°
Tue, 2769° / 51°0
69 °
Juan, Tuesday, 27 October
Overcast. High 69°, low 51°.
Pressure30.09 inHg
Wind5.8 mph E
Humidity38%
Visibility—
Dew point36°
Wed, 2871° / 59°0
71 °
Juan, Wednesday, 28 October
Overcast. High 71°, low 59°.
Pressure30.00 inHg
Wind9.8 mph S
Humidity30%
Visibility—
Dew point33°
Thu, 2969° / 56°0
69 °
Juan, Thursday, 29 October
Partly cloudy. High 69°, low 56°.
Pressure29.97 inHg
Wind7 mph SE
Humidity26%
Visibility—
Dew point30°
Fri, 3069° / 60°0
69 °
Juan, Friday, 30 October
Overcast. High 69°, low 60°.
Pressure29.83 inHg
Wind8.6 mph N
Humidity29%
Visibility—
Dew point33°
Sat, 3164° / 53°0
64 °
Juan, Saturday, 31 October
Overcast. High 64°, low 53°.
Pressure29.68 inHg
Wind14.9 mph W
Humidity30%
Visibility—
Dew point30°
Sun, 0162° / 48°0
62 °
Juan, Sunday, 1 November
Clear. High 62°, low 48°.
Pressure29.77 inHg
Wind17.9 mph W
Humidity50%
Visibility—
Dew point37°
Mon, 0267° / 53°0
67 °
Juan, Monday, 2 November
Partly cloudy. High 67°, low 53°.
Pressure30.00 inHg
Wind9.9 mph SW
Humidity33%
Visibility—
Dew point32°
Tue, 0367° / 54°0
67 °
Juan, Tuesday, 3 November
Clear. High 67°, low 54°.
Pressure30.09 inHg
Wind7 mph N
Humidity34%
Visibility—
Dew point34°
Wed, 0470° / 55°0
70 °
Juan, Wednesday, 4 November
Partly cloudy. High 70°, low 55°.
Pressure30.09 inHg
Wind7.8 mph S
Humidity29%
Visibility—
Dew point32°
Thu, 0570° / 56°0
70 °
Juan, Thursday, 5 November
Clear. High 70°, low 56°.
Pressure30.09 inHg
Wind8.6 mph S
Humidity29%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0665° / 47°0
65 °
Juan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0 in
Chance of precipitation2%
Record high78° (1980)
Record low34° (2011)
Sat, 0765° / 47°0.01
65 °
Juan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.01 in
Chance of precipitation5%
Record high77° (2006)
Record low32° (2011)
Sun, 0864° / 46°0.02
64 °
Juan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high64°
Average low46°
Average precipitation0.02 in
Chance of precipitation5%
Record high78° (2006)
Record low33° (2011)
Mon, 0963° / 45°0.01
63 °
Juan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.01 in
Chance of precipitation5%
Record high76° (1980)
Record low32° (2020)
Tue, 1063° / 45°0.01
63 °
Juan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.01 in
Chance of precipitation3%
Record high76° (2025)
Record low28° (2012)
Wed, 1162° / 45°0.04
62 °
Juan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.04 in
Chance of precipitation13%
Record high76° (1973)
Record low28° (2000)
Thu, 1262° / 45°0.02
62 °
Juan, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2025)
Record low29° (2000)
Fri, 1362° / 44°0
62 °
Juan, Friday, 13 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0 in
Chance of precipitation0%
Record high74° (1990)
Record low24° (1985)
Sat, 1461° / 44°0.02
61 °
Juan, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.02 in
Chance of precipitation10%
Record high76° (1967)
Record low25° (1964)
Sun, 1560° / 43°0.02
60 °
Juan, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.02 in
Chance of precipitation7%
Record high76° (1999)
Record low26° (1964)
Mon, 1660° / 43°0.02
60 °
Juan, Monday, 16 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (1999)
Record low26° (1964)
Tue, 1760° / 43°0.01
60 °
Juan, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.01 in
Chance of precipitation2%
Record high73° (2008)
Record low26° (1964)
Wed, 1859° / 42°0.02
59 °
Juan, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1995)
Record low27° (1985)
Thu, 1959° / 42°0.01
59 °
Juan, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.01 in
Chance of precipitation3%
Record high75° (2007)
Record low20° (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 Juan, 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 Juan, 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.