Monthly outlook for Monte Rosa, CA: average high 67.3°, average low 48.6°. That is 0.8° below the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 29 October (72.9°), the coolest 27 October (42.5°).
67.3°/48.6°
Average high / low
−0.8°
Below normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
68.7°
69.6°
-0.5°
1 November – 10 November
64.9°
66.1°
-0.7°
11 November – 20 November
at normal
62.3°
—
October records over 66 years
105.8°1 October 2020All-time high
36.7°27 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Forestville (8 mi).
Fri, 2370° / 44°0
70 °
Monte Rosa, Friday, 23 October
Mostly clear. High 70°, low 44°.
Pressure30.09 inHg
Wind1.5 mph E
Humidity63%
Visibility6.2 mi
Dew point51°
Sat, 2473° / 48°0
73 °
Monte Rosa, Saturday, 24 October
Clear. High 73°, low 48°.
Pressure30.00 inHg
Wind1.6 mph S
Humidity29%
Visibility6.2 mi
Dew point38°
Sun, 2571° / 50°0
71 °
Monte Rosa, Sunday, 25 October
Mostly clear. High 71°, low 50°.
Pressure30.06 inHg
Wind3 mph SE
Humidity30%
Visibility6.2 mi
Dew point37°
Mon, 2666° / 47°0
66 °
Monte Rosa, Monday, 26 October
Clear. High 66°, low 47°.
Pressure30.12 inHg
Wind9.4 mph NW
Humidity65%
Visibility—
Dew point46°
Tue, 2766° / 43°0
66 °
Monte Rosa, Tuesday, 27 October
Clear. High 66°, low 43°.
Pressure30.09 inHg
Wind7.5 mph NW
Humidity50%
Visibility—
Dew point40°
Wed, 2871° / 43°0
71 °
Monte Rosa, Wednesday, 28 October
Clear. High 71°, low 43°.
Pressure30.00 inHg
Wind4.6 mph SW
Humidity33%
Visibility—
Dew point33°
Thu, 2973° / 47°0
73 °
Monte Rosa, Thursday, 29 October
Partly cloudy. High 73°, low 47°.
Pressure29.94 inHg
Wind5 mph SW
Humidity23%
Visibility—
Dew point27°
Fri, 3069° / 46°0
69 °
Monte Rosa, Friday, 30 October
Overcast. High 69°, low 46°.
Pressure29.94 inHg
Wind5.8 mph SW
Humidity29%
Visibility—
Dew point31°
Sat, 3168° / 43°0
68 °
Monte Rosa, Saturday, 31 October
Clear. High 68°, low 43°.
Pressure29.91 inHg
Wind4.9 mph S
Humidity48%
Visibility—
Dew point39°
Sun, 0166° / 46°0
66 °
Monte Rosa, Sunday, 1 November
Overcast. High 66°, low 46°.
Pressure29.77 inHg
Wind11.3 mph E
Humidity41%
Visibility—
Dew point35°
Mon, 0269° / 57°0.02
69 °
Monte Rosa, Monday, 2 November
Light rain. High 69°, low 57°.
Pressure29.91 inHg
Wind7.8 mph SE
Humidity50%
Visibility—
Dew point44°
Tue, 0363° / 56°0.03
63 °
Monte Rosa, Tuesday, 3 November
Light rain. High 63°, low 56°.
Pressure30.09 inHg
Wind3.7 mph SE
Humidity79%
Visibility—
Dew point53°
Wed, 0470° / 53°0
70 °
Monte Rosa, Wednesday, 4 November
Overcast. High 70°, low 53°.
Pressure30.09 inHg
Wind5.1 mph S
Humidity67%
Visibility—
Dew point53°
Thu, 0565° / 52°0.01
65 °
Monte Rosa, Thursday, 5 November
Light rain. High 65°, low 52°.
Pressure30.03 inHg
Wind8.5 mph S
Humidity67%
Visibility—
Dew point49°
Fri, 0657° / 55°0.74
57 °
Monte Rosa, Friday, 6 November
Rain. High 57°, low 55°.
Pressure29.94 inHg
Wind8 mph S
Humidity94%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0765° / 48°0.15
65 °
Monte Rosa, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.15 in
Chance of precipitation23%
Record high80° (1991)
Record low38° (2017)
Sun, 0864° / 47°0.11
64 °
Monte Rosa, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.11 in
Chance of precipitation25%
Record high78° (1976)
Record low38° (2021)
Mon, 0964° / 46°0.13
64 °
Monte Rosa, Monday, 9 November
Climate normal for this date — 60-year average.
Average high64°
Average low46°
Average precipitation0.13 in
Chance of precipitation27%
Record high80° (2025)
Record low35° (2020)
Tue, 1063° / 46°0.22
63 °
Monte Rosa, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.22 in
Chance of precipitation30%
Record high79° (2025)
Record low35° (2018)
Wed, 1163° / 46°0.15
63 °
Monte Rosa, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.15 in
Chance of precipitation28%
Record high80° (2019)
Record low34° (1978)
Thu, 1264° / 46°0.09
64 °
Monte Rosa, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high64°
Average low46°
Average precipitation0.09 in
Chance of precipitation22%
Record high77° (1990)
Record low31° (1985)
Fri, 1363° / 46°0.2
63 °
Monte Rosa, Friday, 13 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.2 in
Chance of precipitation32%
Record high77° (1995)
Record low31° (1985)
Sat, 1463° / 46°0.07
63 °
Monte Rosa, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.07 in
Chance of precipitation23%
Record high81° (2008)
Record low33° (1985)
Sun, 1563° / 46°0.15
63 °
Monte Rosa, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.15 in
Chance of precipitation25%
Record high80° (2008)
Record low34° (2000)
Mon, 1662° / 46°0.19
62 °
Monte Rosa, Monday, 16 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.19 in
Chance of precipitation30%
Record high77° (2008)
Record low34° (2024)
Tue, 1762° / 45°0.17
62 °
Monte Rosa, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.17 in
Chance of precipitation28%
Record high78° (2019)
Record low33° (2000)
Wed, 1861° / 45°0.1
61 °
Monte Rosa, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high77° (2019)
Record low34° (1964)
Thu, 1961° / 44°0.17
61 °
Monte Rosa, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.17 in
Chance of precipitation27%
Record high74° (1989)
Record low31° (1994)
Fri, 2061° / 45°0.18
61 °
Monte Rosa, Friday, 20 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.18 in
Chance of precipitation37%
Record high73° (2002)
Record low33° (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 Monte Rosa, 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 Monte Rosa, 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.