As of 03:59 PDT

Weather in Rosemont, CA

49°Current weather

Rosemont, Wednesday, 28 October, 03:59

Clear. Feels like 49°. High 71°, low 47°.

Pressure30.00 inHg
Wind0 mph N
Humidity87%
Visibility6.2 mi
Dew point45°

Monthly outlook for Rosemont, CA: average high 68.9°, average low 54.2°. That is 0.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 11 November (74.6°), the coolest 2 November (45.6°).

68.9°/54.2°
Average high / low
+0.7°
Above normal
4 / 3
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
28 October – 6 November67.2°69.3°-1.2°
7 November – 16 November71.8°64.4°+4.1°
17 November – 26 Novemberat normal60.4°—

October records over 66 years

103.6°2 October 2024All-time high
37.9°31 October 2019All-time low
Thu, 2969° / 48°0Overcast
69 °Overcast

Rosemont, Thursday, 29 October

Overcast. High 69°, low 48°.

Pressure29.91 inHg
Wind1.5 mph SE
Humidity50%
Visibility6.2 mi
Dew point45°
Fri, 3070° / 54°0Partly cloudy
70 °Partly cloudy

Rosemont, Friday, 30 October

Partly cloudy. High 70°, low 54°.

Pressure29.91 inHg
Wind4.1 mph S
Humidity56%
Visibility6.2 mi
Dew point49°
Sat, 3162° / 53°0.05Light rain
62 °Light rain

Rosemont, Saturday, 31 October

Light rain. High 62°, low 53°.

Pressure29.91 inHg
Wind4.1 mph S
Humidity52%
Visibility6.2 mi
Dew point45°
Sun, 0167° / 47°0Clear
67 °Clear

Rosemont, Sunday, 1 November

Clear. High 67°, low 47°.

Pressure30.03 inHg
Wind6.9 mph NW
Humidity69%
Visibility—
Dew point44°
Mon, 0268° / 46°0Overcast
68 °Overcast

Rosemont, Monday, 2 November

Overcast. High 68°, low 46°.

Pressure30.21 inHg
Wind4.1 mph N
Humidity45%
Visibility—
Dew point35°
Tue, 0373° / 54°0Mostly clear
73 °Mostly clear

Rosemont, Tuesday, 3 November

Mostly clear. High 73°, low 54°.

Pressure30.06 inHg
Wind5.6 mph NW
Humidity27%
Visibility—
Dew point29°
Wed, 0461° / 54°0.06Light rain
61 °Light rain

Rosemont, Wednesday, 4 November

Light rain. High 61°, low 54°.

Pressure29.94 inHg
Wind5.5 mph W
Humidity40%
Visibility—
Dew point36°
Thu, 0566° / 52°0Overcast
66 °Overcast

Rosemont, Thursday, 5 November

Overcast. High 66°, low 52°.

Pressure30.06 inHg
Wind4.3 mph NW
Humidity57%
Visibility—
Dew point44°
Fri, 0665° / 58°0.3Rain
65 °Rain

Rosemont, Friday, 6 November

Rain. High 65°, low 58°.

Pressure29.97 inHg
Wind8.1 mph SE
Humidity63%
Visibility—
Dew point48°
Sat, 0769° / 59°0.8Heavy rain
69 °Heavy rain

Rosemont, Saturday, 7 November

Heavy rain. High 69°, low 59°.

Pressure30.00 inHg
Wind14.6 mph SE
Humidity79%
Visibility—
Dew point57°
Sun, 0871° / 60°0Overcast
71 °Overcast

Rosemont, Sunday, 8 November

Overcast. High 71°, low 60°.

Pressure30.09 inHg
Wind10.5 mph S
Humidity77%
Visibility—
Dew point55°
Mon, 0972° / 61°0.01Light rain
72 °Light rain

Rosemont, Monday, 9 November

Light rain. High 72°, low 61°.

Pressure30.21 inHg
Wind6.5 mph SW
Humidity66%
Visibility—
Dew point55°
Tue, 1072° / 58°0Partly cloudy
72 °Partly cloudy

Rosemont, Tuesday, 10 November

Partly cloudy. High 72°, low 58°.

Pressure30.21 inHg
Wind8 mph NW
Humidity62%
Visibility—
Dew point51°
Wed, 1175° / 58°0Partly cloudy
75 °Partly cloudy

Rosemont, Wednesday, 11 November

Partly cloudy. High 75°, low 58°.

Pressure30.15 inHg
Wind5 mph SE
Humidity50%
Visibility—
Dew point48°
Thu, 1272° / 58°0Partly cloudy
72 °Partly cloudy

Rosemont, Thursday, 12 November

Partly cloudy. High 72°, low 58°.

Pressure29.97 inHg
Wind10.8 mph SW
Humidity66%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1364° / 46°0.14Climate normal
64 °Climate normal

Rosemont, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.14 in
Chance of precipitation30%
Record high79° (2013)
Record low32° (1985)
Sat, 1464° / 46°0.09Climate normal
64 °Climate normal

Rosemont, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.09 in
Chance of precipitation22%
Record high78° (2008)
Record low31° (1985)
Sun, 1564° / 45°0.07Climate normal
64 °Climate normal

Rosemont, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (2010)
Record low33° (1978)
Mon, 1663° / 46°0.13Climate normal
63 °Climate normal

Rosemont, Monday, 16 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.13 in
Chance of precipitation30%
Record high75° (1977)
Record low34° (2000)
Tue, 1763° / 46°0.16Climate normal
63 °Climate normal

Rosemont, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.16 in
Chance of precipitation28%
Record high75° (2008)
Record low32° (1964)
Wed, 1862° / 44°0.09Climate normal
62 °Climate normal

Rosemont, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high62°
Average low44°
Average precipitation0.09 in
Chance of precipitation25%
Record high74° (2019)
Record low32° (1964)
Thu, 1961° / 44°0.09Climate normal
61 °Climate normal

Rosemont, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high61°
Average low44°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (1989)
Record low30° (1964)
Fri, 2061° / 44°0.13Climate normal
61 °Climate normal

Rosemont, Friday, 20 November

Climate normal for this date — 60-year average.

Average high61°
Average low44°
Average precipitation0.13 in
Chance of precipitation28%
Record high73° (1995)
Record low30° (1985)
Sat, 2160° / 44°0.16Climate normal
60 °Climate normal

Rosemont, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.16 in
Chance of precipitation32%
Record high71° (2005)
Record low31° (2022)
Sun, 2260° / 43°0.14Climate normal
60 °Climate normal

Rosemont, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high60°
Average low43°
Average precipitation0.14 in
Chance of precipitation28%
Record high71° (2005)
Record low30° (2022)
Mon, 2360° / 43°0.09Climate normal
60 °Climate normal

Rosemont, Monday, 23 November

Climate normal for this date — 60-year average.

Average high60°
Average low43°
Average precipitation0.09 in
Chance of precipitation20%
Record high72° (1995)
Record low33° (1972)
Tue, 2460° / 42°0.1Climate normal
60 °Climate normal

Rosemont, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high60°
Average low42°
Average precipitation0.1 in
Chance of precipitation23%
Record high73° (1995)
Record low31° (2010)
Wed, 2559° / 42°0.08Climate normal
59 °Climate normal

Rosemont, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high59°
Average low42°
Average precipitation0.08 in
Chance of precipitation20%
Record high74° (1995)
Record low31° (2010)
Thu, 2659° / 41°0.09Climate normal
59 °Climate normal

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)

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.