Monthly outlook for Rio Oso, CA: average high 70.7°, average low 51.6°. That is 2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 1.5 inches. The warmest day looks like 10 November (77.2°), the coolest 2 November (43.9°).
70.7°/51.6°
Average high / low
+2°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
69.4°
68.9°
+0.3°
9 November – 18 November
72.9°
63.7°
+5.1°
19 November – 28 November
at normal
59.8°
—
October records over 66 years
103.8°1 October 2020All-time high
36.9°28 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Yuba City (14 mi).
Sat, 3168° / 51°0
68 °
Rio Oso, Saturday, 31 October
Overcast. High 68°, low 51°.
Pressure29.94 inHg
Wind7.5 mph S
Humidity52%
Visibility6.2 mi
Dew point46°
Sun, 0167° / 45°0
67 °
Rio Oso, Sunday, 1 November
Clear. High 67°, low 45°.
Pressure29.97 inHg
Wind1.7 mph NW
Humidity57%
Visibility6.2 mi
Dew point47°
Mon, 0268° / 44°0
68 °
Rio Oso, Monday, 2 November
Overcast. High 68°, low 44°.
Pressure30.18 inHg
Wind3.1 mph S
Humidity48%
Visibility6.2 mi
Dew point43°
Tue, 0370° / 46°0
70 °
Rio Oso, Tuesday, 3 November
Overcast. High 70°, low 46°.
Pressure30.12 inHg
Wind2.9 mph NW
Humidity46%
Visibility6.2 mi
Dew point43°
Wed, 0469° / 47°0
69 °
Rio Oso, Wednesday, 4 November
Mostly clear. High 69°, low 47°.
Pressure29.97 inHg
Wind9.4 mph S
Humidity57%
Visibility—
Dew point46°
Thu, 0566° / 52°0.02
66 °
Rio Oso, Thursday, 5 November
Light rain. High 66°, low 52°.
Pressure30.00 inHg
Wind7 mph SE
Humidity84%
Visibility—
Dew point52°
Fri, 0670° / 53°0
70 °
Rio Oso, Friday, 6 November
Overcast. High 70°, low 53°.
Pressure30.09 inHg
Wind7.4 mph NW
Humidity44%
Visibility—
Dew point39°
Sat, 0772° / 51°0
72 °
Rio Oso, Saturday, 7 November
Overcast. High 72°, low 51°.
Pressure30.18 inHg
Wind5.8 mph N
Humidity41%
Visibility—
Dew point38°
Sun, 0874° / 53°0
74 °
Rio Oso, Sunday, 8 November
Overcast. High 74°, low 53°.
Pressure30.21 inHg
Wind5.1 mph N
Humidity28%
Visibility—
Dew point30°
Mon, 0975° / 53°0
75 °
Rio Oso, Monday, 9 November
Overcast. High 75°, low 53°.
Pressure30.18 inHg
Wind5.6 mph N
Humidity25%
Visibility—
Dew point28°
Tue, 1077° / 57°0
77 °
Rio Oso, Tuesday, 10 November
Overcast. High 77°, low 57°.
Pressure30.15 inHg
Wind4.4 mph SE
Humidity21%
Visibility—
Dew point25°
Wed, 1177° / 52°0
77 °
Rio Oso, Wednesday, 11 November
Clear. High 77°, low 52°.
Pressure30.09 inHg
Wind6.5 mph NW
Humidity27%
Visibility—
Dew point30°
Thu, 1275° / 53°0
75 °
Rio Oso, Thursday, 12 November
Clear. High 75°, low 53°.
Pressure29.94 inHg
Wind7 mph SE
Humidity30%
Visibility—
Dew point32°
Fri, 1371° / 59°0
71 °
Rio Oso, Friday, 13 November
Overcast. High 71°, low 59°.
Pressure29.97 inHg
Wind8 mph SE
Humidity33%
Visibility—
Dew point37°
Sat, 1462° / 57°0.07
62 °
Rio Oso, Saturday, 14 November
Light rain. High 62°, low 57°.
Pressure29.94 inHg
Wind7.4 mph SE
Humidity72%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1563° / 46°0.1
63 °
Rio Oso, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.1 in
Chance of precipitation22%
Record high76° (2010)
Record low32° (2000)
Mon, 1663° / 46°0.13
63 °
Rio Oso, Monday, 16 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.13 in
Chance of precipitation33%
Record high75° (1977)
Record low33° (2018)
Tue, 1763° / 45°0.15
63 °
Rio Oso, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.15 in
Chance of precipitation27%
Record high75° (2019)
Record low31° (1964)
Wed, 1862° / 44°0.09
62 °
Rio Oso, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (1976)
Record low32° (2000)
Thu, 1961° / 44°0.13
61 °
Rio Oso, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.13 in
Chance of precipitation25%
Record high73° (1995)
Record low29° (1994)
Fri, 2061° / 45°0.15
61 °
Rio Oso, Friday, 20 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.15 in
Chance of precipitation40%
Record high75° (1995)
Record low30° (1985)
Sat, 2160° / 44°0.17
60 °
Rio Oso, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.17 in
Chance of precipitation38%
Record high71° (2002)
Record low30° (2022)
Sun, 2260° / 44°0.15
60 °
Rio Oso, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.15 in
Chance of precipitation27%
Record high69° (1976)
Record low32° (2022)
Mon, 2361° / 43°0.12
61 °
Rio Oso, Monday, 23 November
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.12 in
Chance of precipitation20%
Record high75° (1995)
Record low33° (1972)
Tue, 2460° / 42°0.1
60 °
Rio Oso, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.1 in
Chance of precipitation23%
Record high74° (1995)
Record low32° (1966)
Wed, 2560° / 42°0.07
60 °
Rio Oso, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.07 in
Chance of precipitation20%
Record high75° (1995)
Record low32° (1966)
Thu, 2659° / 41°0.07
59 °
Rio Oso, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2002)
Record low31° (2010)
Fri, 2758° / 42°0.1
58 °
Rio Oso, Friday, 27 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.1 in
Chance of precipitation33%
Record high72° (2002)
Record low30° (2023)
Sat, 2858° / 41°0.13
58 °
Rio Oso, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.13 in
Chance of precipitation25%
Record high70° (1995)
Record low30° (2023)
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 Rio Oso, 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 Rio Oso, 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.