Monthly outlook for San Dimas, CA: average high 66.8°, average low 53.8°. That is 2.3° below the climate normal for November. Precipitation is expected on 6 days (about 0.7 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 11 November (85.9°), the coolest 15 November (48.8°).
66.8°/53.8°
Average high / low
−2.3°
Below normal
6 / 2
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
69.8°
71.9°
-1.1°
20 November – 29 November
61.8°
68.8°
-3.9°
30 November – 9 December
at normal
66.8°
—
November records over 66 years
96.4°5 November 2020All-time high
31.1°19 November 1964All-time low
Climate normals and records are computed from the nearest reference point — Covina (4 mi).
Wed, 1186° / 57°0
86 °
San Dimas, Wednesday, 11 November
Clear. High 86°, low 57°.
Pressure30.06 inHg
Wind2.8 mph SW
Humidity23%
Visibility6.2 mi
Dew point37°
Thu, 1278° / 58°0
78 °
San Dimas, Thursday, 12 November
Clear. High 78°, low 58°.
Pressure29.91 inHg
Wind3.1 mph S
Humidity27%
Visibility6.2 mi
Dew point40°
Fri, 1369° / 56°0.17
69 °
San Dimas, Friday, 13 November
Rain. High 69°, low 56°.
Pressure29.83 inHg
Wind2.8 mph SW
Humidity78%
Visibility1.8 mi
Dew point54°
Sat, 1463° / 51°0.17
63 °
San Dimas, Saturday, 14 November
Light rain. High 63°, low 51°.
Pressure29.80 inHg
Wind2.6 mph SW
Humidity67%
Visibility6.2 mi
Dew point51°
Sun, 1566° / 49°0
66 °
San Dimas, Sunday, 15 November
Clear. High 66°, low 49°.
Pressure30.00 inHg
Wind2.4 mph N
Humidity56%
Visibility—
Dew point45°
Mon, 1667° / 57°0.08
67 °
San Dimas, Monday, 16 November
Light rain. High 67°, low 57°.
Pressure30.06 inHg
Wind8 mph SW
Humidity65%
Visibility—
Dew point52°
Tue, 1764° / 56°0.13
64 °
San Dimas, Tuesday, 17 November
Light rain. High 64°, low 56°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity65%
Visibility—
Dew point47°
Wed, 1863° / 53°0.07
63 °
San Dimas, Wednesday, 18 November
Light rain. High 63°, low 53°.
Pressure30.06 inHg
Wind12.1 mph SW
Humidity52%
Visibility—
Dew point42°
Thu, 1959° / 49°0
59 °
San Dimas, Thursday, 19 November
Light rain. High 59°, low 49°.
Pressure29.85 inHg
Wind9.5 mph NW
Humidity35%
Visibility—
Dew point28°
Fri, 2060° / 50°0
60 °
San Dimas, Friday, 20 November
Clear. High 60°, low 50°.
Pressure30.03 inHg
Wind7 mph S
Humidity36%
Visibility—
Dew point29°
Sat, 2160° / 52°0.01
60 °
San Dimas, Saturday, 21 November
Light rain. High 60°, low 52°.
Pressure30.09 inHg
Wind7.9 mph SW
Humidity50%
Visibility—
Dew point38°
Sun, 2258° / 53°0.06
58 °
San Dimas, Sunday, 22 November
Light rain. High 58°, low 53°.
Pressure30.09 inHg
Wind8.3 mph NE
Humidity53%
Visibility—
Dew point41°
Mon, 2366° / 51°0
66 °
San Dimas, Monday, 23 November
Clear. High 66°, low 51°.
Pressure30.18 inHg
Wind6.5 mph N
Humidity30%
Visibility—
Dew point28°
Tue, 2464° / 56°0
64 °
San Dimas, Tuesday, 24 November
Overcast. High 64°, low 56°.
Pressure30.06 inHg
Wind6.4 mph SW
Humidity21%
Visibility—
Dew point21°
Wed, 2562° / 55°0.02
62 °
San Dimas, Wednesday, 25 November
Light rain. High 62°, low 55°.
Pressure30.12 inHg
Wind6.5 mph SW
Humidity62%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2669° / 47°0.06
69 °
San Dimas, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.06 in
Chance of precipitation15%
Record high91° (1977)
Record low35° (1984)
Fri, 2768° / 46°0.03
68 °
San Dimas, Friday, 27 November
Climate normal for this date — 60-year average.
Average high68°
Average low46°
Average precipitation0.03 in
Chance of precipitation13%
Record high88° (2014)
Record low35° (2010)
Sat, 2867° / 45°0.07
67 °
San Dimas, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.07 in
Chance of precipitation17%
Record high86° (1980)
Record low34° (1976)
Sun, 2967° / 45°0.11
67 °
San Dimas, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.11 in
Chance of precipitation17%
Record high83° (1977)
Record low32° (2004)
Mon, 3067° / 45°0.05
67 °
San Dimas, Monday, 30 November
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.05 in
Chance of precipitation20%
Record high83° (1977)
Record low34° (1975)
Tue, 0168° / 45°0.02
68 °
San Dimas, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high68°
Average low45°
Average precipitation0.02 in
Chance of precipitation7%
Record high82° (2021)
Record low34° (2004)
Wed, 0267° / 45°0.03
67 °
San Dimas, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.03 in
Chance of precipitation12%
Record high81° (1977)
Record low36° (2004)
Thu, 0367° / 45°0.08
67 °
San Dimas, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.08 in
Chance of precipitation12%
Record high80° (1979)
Record low36° (2016)
Fri, 0467° / 45°0.09
67 °
San Dimas, Friday, 4 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.09 in
Chance of precipitation13%
Record high85° (1979)
Record low34° (2004)
Sat, 0567° / 45°0.07
67 °
San Dimas, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.07 in
Chance of precipitation18%
Record high84° (1979)
Record low32° (1972)
Sun, 0667° / 46°0.12
67 °
San Dimas, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.12 in
Chance of precipitation15%
Record high84° (1979)
Record low31° (1978)
Mon, 0766° / 46°0.11
66 °
San Dimas, Monday, 7 December
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.11 in
Chance of precipitation28%
Record high81° (1979)
Record low28° (1978)
Tue, 0866° / 44°0.02
66 °
San Dimas, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.02 in
Chance of precipitation13%
Record high83° (2015)
Record low27° (1978)
Wed, 0966° / 44°0.03
66 °
San Dimas, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.03 in
Chance of precipitation10%
Record high83° (2017)
Record low29° (1972)
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 San Dimas, 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 San Dimas, 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.