Monthly outlook for Juan, CA: average high 63.7°, average low 48.7°. That is 3° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 20 October (71.1°), the coolest 31 October (39.2°).
63.7°/48.7°
Average high / low
−3°
Below normal
2 / 1
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
67.7°
70.6°
-1.6°
28 October – 6 November
57°
66.2°
-5.1°
7 November – 16 November
at normal
62.2°
—
October records over 66 years
95.4°4 October 2024All-time high
25.2°30 October 2019All-time low
Mon, 1970° / 55°0
70 °
Juan, Monday, 19 October
Mostly clear. High 70°, low 55°.
Pressure30.00 inHg
Wind7.6 mph SE
Humidity37%
Visibility6.2 mi
Dew point43°
Tue, 2071° / 56°0
71 °
Juan, Tuesday, 20 October
Partly cloudy. High 71°, low 56°.
Pressure29.94 inHg
Wind12.8 mph SE
Humidity35%
Visibility6.2 mi
Dew point42°
Wed, 2169° / 55°0.02
69 °
Juan, Wednesday, 21 October
Light rain. High 69°, low 55°.
Pressure29.94 inHg
Wind16.2 mph SE
Humidity55%
Visibility6.2 mi
Dew point51°
Thu, 2265° / 48°0.06
65 °
Juan, Thursday, 22 October
Light rain. High 65°, low 48°.
Pressure29.88 inHg
Wind14.4 mph S
Humidity49%
Visibility6.2 mi
Dew point45°
Fri, 2362° / 45°0.17
62 °
Juan, Friday, 23 October
Rain. High 62°, low 45°.
Pressure29.97 inHg
Wind5.8 mph NW
Humidity52%
Visibility—
Dew point38°
Sat, 2462° / 44°0
62 °
Juan, Saturday, 24 October
Clear. High 62°, low 44°.
Pressure30.12 inHg
Wind12.8 mph N
Humidity46%
Visibility—
Dew point35°
Sun, 2568° / 54°0
68 °
Juan, Sunday, 25 October
Clear. High 68°, low 54°.
Pressure30.03 inHg
Wind16.6 mph N
Humidity19%
Visibility—
Dew point20°
Mon, 2671° / 57°0
71 °
Juan, Monday, 26 October
Clear. High 71°, low 57°.
Pressure29.85 inHg
Wind8.3 mph N
Humidity21%
Visibility—
Dew point25°
Tue, 2770° / 58°0
70 °
Juan, Tuesday, 27 October
Clear. High 70°, low 58°.
Pressure29.83 inHg
Wind18.9 mph S
Humidity21%
Visibility—
Dew point26°
Wed, 2863° / 45°0
63 °
Juan, Wednesday, 28 October
Overcast. High 63°, low 45°.
Pressure29.74 inHg
Wind28.9 mph W
Humidity31%
Visibility—
Dew point30°
Thu, 2952° / 40°0
52 °
Juan, Thursday, 29 October
Clear. High 52°, low 40°.
Pressure29.97 inHg
Wind12.4 mph NW
Humidity42%
Visibility—
Dew point24°
Fri, 3053° / 40°0
53 °
Juan, Friday, 30 October
Clear. High 53°, low 40°.
Pressure29.94 inHg
Wind13.6 mph N
Humidity44%
Visibility—
Dew point26°
Sat, 3152° / 39°0
52 °
Juan, Saturday, 31 October
Clear. High 52°, low 39°.
Pressure30.27 inHg
Wind15.1 mph N
Humidity22%
Visibility—
Dew point10°
Sun, 0159° / 44°0
59 °
Juan, Sunday, 1 November
Clear. High 59°, low 44°.
Pressure30.15 inHg
Wind10 mph N
Humidity18%
Visibility—
Dew point11°
Mon, 0263° / 46°0
63 °
Juan, Monday, 2 November
Clear. High 63°, low 46°.
Pressure29.88 inHg
Wind12.7 mph S
Humidity16%
Visibility—
Dew point11°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0366° / 47°0.01
66 °
Juan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.01 in
Chance of precipitation5%
Record high77° (2010)
Record low36° (2022)
Wed, 0466° / 48°0.01
66 °
Juan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high66°
Average low48°
Average precipitation0.01 in
Chance of precipitation3%
Record high78° (1988)
Record low33° (2003)
Thu, 0566° / 48°0.01
66 °
Juan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high66°
Average low48°
Average precipitation0.01 in
Chance of precipitation3%
Record high77° (1980)
Record low30° (2015)
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)
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.