Monthly outlook for Rosemont, CA: average high 61.4°, average low 47.6°. That is 0.3° below the climate normal for November. Precipitation is expected on 6 days (about 4.2 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 11 November (77.1°), the coolest 20 November (41.3°).
61.4°/47.6°
Average high / low
−0.3°
Below normal
6 / 4
Wet days / normal
4.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
64.5°
63.2°
+0.7°
20 November – 29 November
56.1°
59.2°
-1.7°
30 November – 9 December
at normal
57.1°
—
November records over 66 years
85.1°3 November 2018All-time high
29.1°29 November 2010All-time low
Wed, 1177° / 50°0
77 °
Rosemont, Wednesday, 11 November
Clear. High 77°, low 50°.
Pressure30.09 inHg
Wind0.8 mph W
Humidity55%
Visibility3.7 mi
Dew point51°
Thu, 1277° / 48°0
77 °
Rosemont, Thursday, 12 November
Clear. High 77°, low 48°.
Pressure29.83 inHg
Wind1.3 mph SE
Humidity32%
Visibility6.2 mi
Dew point40°
Fri, 1367° / 53°0.54
67 °
Rosemont, Friday, 13 November
Rain. High 67°, low 53°.
Pressure29.62 inHg
Wind12 mph S
Humidity63%
Visibility6.2 mi
Dew point54°
Sat, 1459° / 45°0
59 °
Rosemont, Saturday, 14 November
Overcast. High 59°, low 45°.
Pressure29.94 inHg
Wind2.8 mph NW
Humidity74%
Visibility6.2 mi
Dew point49°
Sun, 1562° / 48°0.24
62 °
Rosemont, Sunday, 15 November
Rain. High 62°, low 48°.
Pressure30.03 inHg
Wind5.9 mph SE
Humidity70%
Visibility—
Dew point47°
Mon, 1655° / 53°0.84
55 °
Rosemont, Monday, 16 November
Rain. High 55°, low 53°.
Pressure30.00 inHg
Wind5.7 mph S
Humidity92%
Visibility—
Dew point51°
Tue, 1760° / 47°0.02
60 °
Rosemont, Tuesday, 17 November
Light rain. High 60°, low 47°.
Pressure30.09 inHg
Wind5.7 mph SE
Humidity75%
Visibility—
Dew point46°
Wed, 1857° / 50°0.44
57 °
Rosemont, Wednesday, 18 November
Rain. High 57°, low 50°.
Pressure29.94 inHg
Wind14.5 mph S
Humidity69%
Visibility—
Dew point44°
Thu, 1956° / 46°0
56 °
Rosemont, Thursday, 19 November
Overcast. High 56°, low 46°.
Pressure30.00 inHg
Wind9 mph NW
Humidity61%
Visibility—
Dew point37°
Fri, 2056° / 41°0
56 °
Rosemont, Friday, 20 November
Clear. High 56°, low 41°.
Pressure30.09 inHg
Wind6.7 mph N
Humidity65%
Visibility—
Dew point37°
Sat, 2157° / 43°0
57 °
Rosemont, Saturday, 21 November
Clear. High 57°, low 43°.
Pressure30.09 inHg
Wind5.2 mph N
Humidity53%
Visibility—
Dew point34°
Sun, 2258° / 43°0
58 °
Rosemont, Sunday, 22 November
Clear. High 58°, low 43°.
Pressure30.18 inHg
Wind4.7 mph NW
Humidity45%
Visibility—
Dew point30°
Mon, 2358° / 43°0.01
58 °
Rosemont, Monday, 23 November
Light rain. High 58°, low 43°.
Pressure30.27 inHg
Wind6.5 mph NW
Humidity43%
Visibility—
Dew point29°
Tue, 2451° / 49°1.39
51 °
Rosemont, Tuesday, 24 November
Rain. High 51°, low 49°.
Pressure30.09 inHg
Wind12.8 mph S
Humidity89%
Visibility—
Dew point47°
Wed, 2558° / 51°0.7
58 °
Rosemont, Wednesday, 25 November
Rain. High 58°, low 51°.
Pressure30.00 inHg
Wind16.1 mph SE
Humidity84%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2659° / 41°0.09
59 °
Rosemont, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.09 in
Chance of precipitation22%
Record high70° (2002)
Record low31° (2010)
Fri, 2758° / 42°0.09
58 °
Rosemont, Friday, 27 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (1986)
Record low31° (2023)
Sat, 2858° / 41°0.13
58 °
Rosemont, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.13 in
Chance of precipitation25%
Record high69° (1995)
Record low32° (2015)
Sun, 2957° / 41°0.15
57 °
Rosemont, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.15 in
Chance of precipitation27%
Record high71° (1977)
Record low29° (2010)
Mon, 3057° / 41°0.15
57 °
Rosemont, Monday, 30 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.15 in
Chance of precipitation27%
Record high71° (1977)
Record low29° (2004)
Tue, 0158° / 42°0.17
58 °
Rosemont, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.17 in
Chance of precipitation30%
Record high67° (1977)
Record low33° (2020)
Wed, 0257° / 42°0.18
57 °
Rosemont, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.18 in
Chance of precipitation27%
Record high69° (2011)
Record low30° (2004)
Thu, 0358° / 42°0.19
58 °
Rosemont, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.19 in
Chance of precipitation33%
Record high69° (1979)
Record low31° (2004)
Fri, 0457° / 41°0.12
57 °
Rosemont, Friday, 4 December
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.12 in
Chance of precipitation28%
Record high66° (1979)
Record low31° (2004)
Sat, 0557° / 42°0.11
57 °
Rosemont, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation25%
Record high67° (1989)
Record low28° (2013)
Sun, 0657° / 42°0.09
57 °
Rosemont, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high66° (1995)
Record low27° (2013)
Mon, 0757° / 42°0.16
57 °
Rosemont, Monday, 7 December
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.16 in
Chance of precipitation35%
Record high70° (2020)
Record low29° (1998)
Tue, 0856° / 40°0.1
56 °
Rosemont, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high67° (1979)
Record low26° (2009)
Wed, 0956° / 40°0.12
56 °
Rosemont, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation28%
Record high66° (1990)
Record low23° (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 Rosemont, 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 Rosemont, 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.