Monthly outlook for Spanish Flat, CA: average high 63.8°, average low 48.1°. That is 3.6° below the climate normal for October. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 25 October (70.6°), the coolest 26 October (41.8°).
63.8°/48.1°
Average high / low
−3.6°
Below normal
4 / 3
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
65°
71.7°
-3.7°
4 November – 13 November
61.9°
67°
-2.8°
14 November – 23 November
at normal
63.2°
—
October records over 66 years
106°1 October 2020All-time high
39.7°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — St. Helena (13 mi).
Mon, 2669° / 42°0
69 °
Spanish Flat, Monday, 26 October
Clear. High 69°, low 42°.
Pressure30.12 inHg
Wind5.2 mph W
Humidity60%
Visibility6.2 mi
Dew point49°
Tue, 2767° / 46°0
67 °
Spanish Flat, Tuesday, 27 October
Clear. High 67°, low 46°.
Pressure30.06 inHg
Wind1.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point45°
Wed, 2870° / 48°0
70 °
Spanish Flat, Wednesday, 28 October
Mostly clear. High 70°, low 48°.
Pressure30.00 inHg
Wind4.6 mph N
Humidity41%
Visibility6.2 mi
Dew point41°
Thu, 2969° / 52°0
69 °
Spanish Flat, Thursday, 29 October
Overcast. High 69°, low 52°.
Pressure29.94 inHg
Wind5.5 mph S
Humidity57%
Visibility—
Dew point45°
Fri, 3067° / 49°0
67 °
Spanish Flat, Friday, 30 October
Overcast. High 67°, low 49°.
Pressure29.88 inHg
Wind8.9 mph W
Humidity64%
Visibility—
Dew point45°
Sat, 3157° / 44°0
57 °
Spanish Flat, Saturday, 31 October
Overcast. High 57°, low 44°.
Pressure29.97 inHg
Wind3.5 mph W
Humidity43%
Visibility—
Dew point30°
Sun, 0154° / 43°0.19
54 °
Spanish Flat, Sunday, 1 November
Light rain. High 54°, low 43°.
Pressure29.62 inHg
Wind11.6 mph SW
Humidity82%
Visibility—
Dew point41°
Mon, 0262° / 43°0
62 °
Spanish Flat, Monday, 2 November
Mostly clear. High 62°, low 43°.
Pressure30.24 inHg
Wind3.8 mph E
Humidity56%
Visibility—
Dew point40°
Tue, 0364° / 49°0
64 °
Spanish Flat, Tuesday, 3 November
Overcast. High 64°, low 49°.
Pressure30.18 inHg
Wind3.7 mph SE
Humidity48%
Visibility—
Dew point38°
Wed, 0463° / 46°0.02
63 °
Spanish Flat, Wednesday, 4 November
Light rain. High 63°, low 46°.
Pressure30.03 inHg
Wind12.4 mph S
Humidity54%
Visibility—
Dew point41°
Thu, 0559° / 54°2.18
59 °
Spanish Flat, Thursday, 5 November
Heavy rain. High 59°, low 54°.
Pressure29.74 inHg
Wind19.8 mph SE
Humidity92%
Visibility—
Dew point52°
Fri, 0658° / 51°0.19
58 °
Spanish Flat, Friday, 6 November
Light rain. High 58°, low 51°.
Pressure29.80 inHg
Wind15.4 mph SW
Humidity90%
Visibility—
Dew point51°
Sat, 0755° / 51°0.07
55 °
Spanish Flat, Saturday, 7 November
Light rain. High 55°, low 51°.
Pressure30.06 inHg
Wind4.6 mph S
Humidity92%
Visibility—
Dew point52°
Sun, 0870° / 54°0
70 °
Spanish Flat, Sunday, 8 November
Mostly clear. High 70°, low 54°.
Pressure30.06 inHg
Wind3.5 mph S
Humidity73%
Visibility—
Dew point55°
Mon, 0966° / 52°0.01
66 °
Spanish Flat, Monday, 9 November
Light rain. High 66°, low 52°.
Pressure30.06 inHg
Wind10.8 mph SW
Humidity68%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1065° / 48°0.19
65 °
Spanish Flat, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.19 in
Chance of precipitation30%
Record high83° (2019)
Record low37° (2022)
Wed, 1165° / 48°0.13
65 °
Spanish Flat, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.13 in
Chance of precipitation27%
Record high86° (2019)
Record low37° (2000)
Thu, 1266° / 48°0.09
66 °
Spanish Flat, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high66°
Average low48°
Average precipitation0.09 in
Chance of precipitation23%
Record high80° (1990)
Record low33° (1985)
Fri, 1365° / 48°0.19
65 °
Spanish Flat, Friday, 13 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.19 in
Chance of precipitation30%
Record high82° (1995)
Record low35° (1985)
Sat, 1465° / 48°0.07
65 °
Spanish Flat, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation22%
Record high82° (2008)
Record low35° (1978)
Sun, 1565° / 48°0.11
65 °
Spanish Flat, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high81° (2008)
Record low35° (2000)
Mon, 1664° / 48°0.15
64 °
Spanish Flat, Monday, 16 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.15 in
Chance of precipitation32%
Record high80° (2019)
Record low35° (2000)
Tue, 1764° / 47°0.15
64 °
Spanish Flat, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.15 in
Chance of precipitation23%
Record high83° (2019)
Record low35° (1964)
Wed, 1863° / 46°0.11
63 °
Spanish Flat, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.11 in
Chance of precipitation27%
Record high80° (2019)
Record low37° (1985)
Thu, 1962° / 46°0.12
62 °
Spanish Flat, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.12 in
Chance of precipitation25%
Record high77° (2005)
Record low34° (1994)
Fri, 2062° / 46°0.15
62 °
Spanish Flat, Friday, 20 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.15 in
Chance of precipitation35%
Record high75° (2002)
Record low35° (1964)
Sat, 2161° / 46°0.18
61 °
Spanish Flat, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.18 in
Chance of precipitation30%
Record high73° (2002)
Record low35° (1985)
Sun, 2262° / 45°0.15
62 °
Spanish Flat, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.15 in
Chance of precipitation28%
Record high73° (1976)
Record low35° (1994)
Mon, 2363° / 45°0.11
63 °
Spanish Flat, Monday, 23 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.11 in
Chance of precipitation18%
Record high76° (1995)
Record low36° (1994)
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 Spanish Flat, 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 Spanish Flat, 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.