Monthly outlook for Valona, CA: average high 71.3°, average low 56.1°. That is 0.2° below the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 26 October (78.2°), the coolest 19 October (43.5°).
71.3°/56.1°
Average high / low
−0.2°
Below normal
3 / 2
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
70.7°
73°
-1.3°
28 October – 6 November
72.4°
69°
+1.9°
7 November – 16 November
at normal
64.6°
—
October records over 66 years
99°3 October 1980All-time high
39.4°29 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Vallejo (4 mi).
Mon, 1968° / 44°0.06
68 °
Valona, Monday, 19 October
Rain. High 68°, low 44°.
Pressure29.97 inHg
Wind9.6 mph W
Humidity51%
Visibility6.2 mi
Dew point44°
Tue, 2063° / 50°0.22
63 °
Valona, Tuesday, 20 October
Rain. High 63°, low 50°.
Pressure29.91 inHg
Wind1.3 mph NW
Humidity74%
Visibility5.3 mi
Dew point51°
Wed, 2163° / 54°0.46
63 °
Valona, Wednesday, 21 October
Rain. High 63°, low 54°.
Pressure29.88 inHg
Wind2.7 mph NW
Humidity76%
Visibility6.2 mi
Dew point54°
Thu, 2265° / 54°0
65 °
Valona, Thursday, 22 October
Partly cloudy. High 65°, low 54°.
Pressure29.97 inHg
Wind8.2 mph W
Humidity80%
Visibility—
Dew point52°
Fri, 2367° / 52°0
67 °
Valona, Friday, 23 October
Partly cloudy. High 67°, low 52°.
Pressure30.09 inHg
Wind5.2 mph SW
Humidity82%
Visibility—
Dew point52°
Sat, 2477° / 58°0
77 °
Valona, Saturday, 24 October
Clear. High 77°, low 58°.
Pressure30.15 inHg
Wind6.6 mph NE
Humidity28%
Visibility—
Dew point31°
Sun, 2578° / 60°0
78 °
Valona, Sunday, 25 October
Clear. High 78°, low 60°.
Pressure30.03 inHg
Wind5.3 mph E
Humidity25%
Visibility—
Dew point31°
Mon, 2678° / 61°0
78 °
Valona, Monday, 26 October
Overcast. High 78°, low 61°.
Pressure29.88 inHg
Wind5.3 mph E
Humidity24%
Visibility—
Dew point30°
Tue, 2772° / 62°0
72 °
Valona, Tuesday, 27 October
Overcast. High 72°, low 62°.
Pressure29.94 inHg
Wind8.2 mph SW
Humidity29%
Visibility—
Dew point35°
Wed, 2872° / 57°0
72 °
Valona, Wednesday, 28 October
Mostly clear. High 72°, low 57°.
Pressure30.06 inHg
Wind9 mph SW
Humidity46%
Visibility—
Dew point43°
Thu, 2970° / 57°0
70 °
Valona, Thursday, 29 October
Overcast. High 70°, low 57°.
Pressure30.00 inHg
Wind4.8 mph W
Humidity49%
Visibility—
Dew point44°
Fri, 3077° / 58°0
77 °
Valona, Friday, 30 October
Clear. High 77°, low 58°.
Pressure29.91 inHg
Wind4.5 mph E
Humidity35%
Visibility—
Dew point37°
Sat, 3177° / 61°0
77 °
Valona, Saturday, 31 October
Clear. High 77°, low 61°.
Pressure29.94 inHg
Wind5 mph SW
Humidity30%
Visibility—
Dew point35°
Sun, 0168° / 62°0
68 °
Valona, Sunday, 1 November
Overcast. High 68°, low 62°.
Pressure30.06 inHg
Wind10.8 mph SW
Humidity42%
Visibility—
Dew point43°
Mon, 0271° / 61°0.02
71 °
Valona, Monday, 2 November
Light rain. High 71°, low 61°.
Pressure30.09 inHg
Wind6.9 mph SW
Humidity72%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0369° / 50°0.03
69 °
Valona, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high83° (2018)
Record low40° (1994)
Wed, 0469° / 50°0.02
69 °
Valona, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high80° (1980)
Record low40° (1973)
Thu, 0568° / 50°0.06
68 °
Valona, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high68°
Average low50°
Average precipitation0.06 in
Chance of precipitation15%
Record high81° (1976)
Record low41° (2011)
Fri, 0667° / 51°0.06
67 °
Valona, Friday, 6 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.06 in
Chance of precipitation20%
Record high80° (1991)
Record low42° (1972)
Sat, 0767° / 50°0.07
67 °
Valona, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.07 in
Chance of precipitation23%
Record high80° (1991)
Record low39° (1971)
Sun, 0865° / 49°0.07
65 °
Valona, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.07 in
Chance of precipitation22%
Record high79° (1978)
Record low42° (1982)
Mon, 0965° / 48°0.09
65 °
Valona, Monday, 9 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.09 in
Chance of precipitation20%
Record high80° (1990)
Record low40° (1985)
Tue, 1064° / 48°0.13
64 °
Valona, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.13 in
Chance of precipitation27%
Record high79° (1990)
Record low40° (2011)
Wed, 1164° / 48°0.09
64 °
Valona, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.09 in
Chance of precipitation28%
Record high77° (1990)
Record low37° (2000)
Thu, 1265° / 48°0.07
65 °
Valona, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation17%
Record high79° (1990)
Record low37° (1978)
Fri, 1364° / 48°0.13
64 °
Valona, Friday, 13 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.13 in
Chance of precipitation28%
Record high80° (1995)
Record low35° (2000)
Sat, 1464° / 47°0.06
64 °
Valona, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.06 in
Chance of precipitation23%
Record high80° (2008)
Record low35° (1964)
Sun, 1564° / 48°0.07
64 °
Valona, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.07 in
Chance of precipitation20%
Record high81° (2010)
Record low37° (1964)
Mon, 1663° / 48°0.1
63 °
Valona, Monday, 16 November
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (1977)
Record low36° (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 Valona, 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 Valona, 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.