Monthly outlook for San Dimas, CA: average high 71.5°, average low 56.7°. That is 1.1° below the climate normal for November. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 8 November (82.3°), the coolest 2 November (50.5°).
71.5°/56.7°
Average high / low
−1.1°
Below normal
4 / 2
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
75.2°
74.4°
+0.5°
12 November – 21 November
65.3°
71.4°
-3.4°
22 November – 1 December
at normal
68.3°
—
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).
Tue, 0376° / 56°0
76 °
San Dimas, Tuesday, 3 November
Overcast. High 76°, low 56°.
Pressure30.06 inHg
Wind1.8 mph W
Humidity36%
Visibility6.2 mi
Dew point40°
Wed, 0467° / 51°0
67 °
San Dimas, Wednesday, 4 November
Clear. High 67°, low 51°.
Pressure29.94 inHg
Wind3.9 mph S
Humidity61%
Visibility6.2 mi
Dew point50°
Thu, 0571° / 51°0
71 °
San Dimas, Thursday, 5 November
Partly cloudy. High 71°, low 51°.
Pressure29.97 inHg
Wind3.1 mph S
Humidity35%
Visibility6.2 mi
Dew point42°
Fri, 0677° / 51°0
77 °
San Dimas, Friday, 6 November
Partly cloudy. High 77°, low 51°.
Pressure30.00 inHg
Wind3 mph S
Humidity30%
Visibility6.2 mi
Dew point43°
Sat, 0778° / 52°0
78 °
San Dimas, Saturday, 7 November
Clear. High 78°, low 52°.
Pressure30.06 inHg
Wind5.8 mph N
Humidity29%
Visibility—
Dew point38°
Sun, 0882° / 56°0
82 °
San Dimas, Sunday, 8 November
Partly cloudy. High 82°, low 56°.
Pressure30.06 inHg
Wind4 mph N
Humidity23%
Visibility—
Dew point34°
Mon, 0976° / 68°0
76 °
San Dimas, Monday, 9 November
Overcast. High 76°, low 68°.
Pressure30.06 inHg
Wind7.3 mph SW
Humidity34%
Visibility—
Dew point42°
Tue, 1076° / 66°0
76 °
San Dimas, Tuesday, 10 November
Overcast. High 76°, low 66°.
Pressure30.12 inHg
Wind6.3 mph SW
Humidity44%
Visibility—
Dew point48°
Wed, 1175° / 66°0
75 °
San Dimas, Wednesday, 11 November
Clear. High 75°, low 66°.
Pressure30.12 inHg
Wind8.5 mph SW
Humidity47%
Visibility—
Dew point51°
Thu, 1265° / 58°1.06
65 °
San Dimas, Thursday, 12 November
Heavy rain. High 65°, low 58°.
Pressure30.03 inHg
Wind12.5 mph S
Humidity74%
Visibility—
Dew point57°
Fri, 1363° / 57°0
63 °
San Dimas, Friday, 13 November
Light rain. High 63°, low 57°.
Pressure30.03 inHg
Wind9.1 mph SW
Humidity71%
Visibility—
Dew point50°
Sat, 1469° / 58°0
69 °
San Dimas, Saturday, 14 November
Mostly clear. High 69°, low 58°.
Pressure30.12 inHg
Wind6.3 mph S
Humidity62%
Visibility—
Dew point51°
Sun, 1569° / 60°0.07
69 °
San Dimas, Sunday, 15 November
Light rain. High 69°, low 60°.
Pressure30.06 inHg
Wind7.2 mph SW
Humidity71%
Visibility—
Dew point55°
Mon, 1660° / 54°1.33
60 °
San Dimas, Monday, 16 November
Heavy rain. High 60°, low 54°.
Pressure29.80 inHg
Wind12.5 mph W
Humidity86%
Visibility—
Dew point52°
Tue, 1765° / 53°0.05
65 °
San Dimas, Tuesday, 17 November
Light rain. High 65°, low 53°.
Pressure30.00 inHg
Wind6.1 mph SW
Humidity60%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1871° / 48°0.05
71 °
San Dimas, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.05 in
Chance of precipitation17%
Record high91° (2019)
Record low33° (1964)
Thu, 1971° / 48°0.05
71 °
San Dimas, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.05 in
Chance of precipitation5%
Record high88° (2006)
Record low31° (1964)
Fri, 2071° / 48°0.06
71 °
San Dimas, Friday, 20 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.06 in
Chance of precipitation13%
Record high87° (2006)
Record low33° (1994)
Sat, 2169° / 48°0.1
69 °
San Dimas, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.1 in
Chance of precipitation15%
Record high86° (2017)
Record low36° (1994)
Sun, 2269° / 47°0.06
69 °
San Dimas, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.06 in
Chance of precipitation12%
Record high92° (2017)
Record low35° (1983)
Mon, 2370° / 47°0.01
70 °
San Dimas, Monday, 23 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.01 in
Chance of precipitation5%
Record high93° (2017)
Record low37° (2003)
Tue, 2470° / 47°0.04
70 °
San Dimas, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation10%
Record high86° (2017)
Record low39° (1966)
Wed, 2569° / 46°0.06
69 °
San Dimas, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high69°
Average low46°
Average precipitation0.06 in
Chance of precipitation8%
Record high91° (1977)
Record low35° (2010)
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)
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.