Monthly outlook for Fornis, CA: average high 64.8°, average low 44.9°. That is 1.3° below the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 3 days and 2.0 inches. The warmest day looks like 25 October (77.7°), the coolest 29 October (34.9°).
64.8°/44.9°
Average high / low
−1.3°
Below normal
5 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
68.1°
68.4°
-0.2°
29 October – 7 November
59.2°
64°
-2.6°
8 November – 17 November
at normal
59°
—
October records over 66 years
98.4°1 October 2024All-time high
28.6°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Foresthill (8 mi).
Tue, 2069° / 47°0
69 °
Fornis, Tuesday, 20 October
Partly cloudy. High 69°, low 47°.
Pressure29.91 inHg
Wind4.3 mph W
Humidity42%
Visibility6.2 mi
Dew point42°
Wed, 2169° / 53°0.06
69 °
Fornis, Wednesday, 21 October
Light rain. High 69°, low 53°.
Pressure29.88 inHg
Wind5.5 mph S
Humidity39%
Visibility6.2 mi
Dew point43°
Thu, 2267° / 49°0.15
67 °
Fornis, Thursday, 22 October
Light rain. High 67°, low 49°.
Pressure29.94 inHg
Wind3.9 mph SW
Humidity55%
Visibility6.2 mi
Dew point47°
Fri, 2364° / 48°0.09
64 °
Fornis, Friday, 23 October
Light rain. High 64°, low 48°.
Pressure30.09 inHg
Wind8.7 mph NE
Humidity72%
Visibility—
Dew point48°
Sat, 2471° / 43°0
71 °
Fornis, Saturday, 24 October
Mostly clear. High 71°, low 43°.
Pressure30.09 inHg
Wind7.6 mph NE
Humidity29%
Visibility—
Dew point29°
Sun, 2578° / 53°0
78 °
Fornis, Sunday, 25 October
Clear. High 78°, low 53°.
Pressure30.03 inHg
Wind6.2 mph NE
Humidity17%
Visibility—
Dew point24°
Mon, 2677° / 54°0
77 °
Fornis, Monday, 26 October
Clear. High 77°, low 54°.
Pressure29.83 inHg
Wind6.4 mph E
Humidity18%
Visibility—
Dew point26°
Tue, 2766° / 46°0
66 °
Fornis, Tuesday, 27 October
Overcast. High 66°, low 46°.
Pressure29.74 inHg
Wind10.3 mph S
Humidity23%
Visibility—
Dew point26°
Wed, 2852° / 37°0.07
52 °
Fornis, Wednesday, 28 October
Light rain. High 52°, low 37°.
Pressure29.94 inHg
Wind8.9 mph SW
Humidity54%
Visibility—
Dew point33°
Thu, 2948° / 35°0.27
48 °
Fornis, Thursday, 29 October
Rain. High 48°, low 35°.
Pressure30.12 inHg
Wind7.9 mph S
Humidity62%
Visibility—
Dew point33°
Fri, 3062° / 40°0
62 °
Fornis, Friday, 30 October
Mostly clear. High 62°, low 40°.
Pressure30.09 inHg
Wind7.6 mph NE
Humidity58%
Visibility—
Dew point37°
Sat, 3165° / 39°0
65 °
Fornis, Saturday, 31 October
Clear. High 65°, low 39°.
Pressure30.18 inHg
Wind6.5 mph E
Humidity19%
Visibility—
Dew point15°
Sun, 0168° / 45°0
68 °
Fornis, Sunday, 1 November
Clear. High 68°, low 45°.
Pressure30.15 inHg
Wind6.2 mph NE
Humidity23%
Visibility—
Dew point24°
Mon, 0261° / 43°0
61 °
Fornis, Monday, 2 November
Overcast. High 61°, low 43°.
Pressure29.94 inHg
Wind10.7 mph SW
Humidity30%
Visibility—
Dew point27°
Tue, 0352° / 37°0
52 °
Fornis, Tuesday, 3 November
Clear. High 52°, low 37°.
Pressure30.03 inHg
Wind5.1 mph NW
Humidity42%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0464° / 44°0.13
64 °
Fornis, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high64°
Average low44°
Average precipitation0.13 in
Chance of precipitation18%
Record high81° (1976)
Record low30° (2022)
Thu, 0563° / 44°0.17
63 °
Fornis, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high63°
Average low44°
Average precipitation0.17 in
Chance of precipitation23%
Record high80° (1976)
Record low33° (2011)
Fri, 0662° / 45°0.19
62 °
Fornis, Friday, 6 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.19 in
Chance of precipitation28%
Record high79° (1976)
Record low35° (2003)
Sat, 0762° / 44°0.17
62 °
Fornis, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.17 in
Chance of precipitation35%
Record high77° (2007)
Record low32° (1963)
Sun, 0860° / 42°0.2
60 °
Fornis, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.2 in
Chance of precipitation35%
Record high78° (2019)
Record low32° (2011)
Mon, 0959° / 42°0.18
59 °
Fornis, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.18 in
Chance of precipitation35%
Record high78° (2025)
Record low25° (2020)
Tue, 1059° / 42°0.21
59 °
Fornis, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.21 in
Chance of precipitation37%
Record high77° (2025)
Record low23° (2022)
Wed, 1160° / 41°0.21
60 °
Fornis, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.21 in
Chance of precipitation32%
Record high76° (1990)
Record low25° (2022)
Thu, 1260° / 41°0.17
60 °
Fornis, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.17 in
Chance of precipitation32%
Record high75° (1990)
Record low22° (1985)
Fri, 1359° / 41°0.26
59 °
Fornis, Friday, 13 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.26 in
Chance of precipitation32%
Record high76° (1999)
Record low18° (1985)
Sat, 1459° / 41°0.19
59 °
Fornis, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.19 in
Chance of precipitation32%
Record high76° (1995)
Record low20° (1985)
Sun, 1559° / 41°0.11
59 °
Fornis, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high76° (2008)
Record low21° (1985)
Mon, 1658° / 41°0.22
58 °
Fornis, Monday, 16 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.22 in
Chance of precipitation33%
Record high74° (2008)
Record low26° (1964)
Tue, 1758° / 40°0.3
58 °
Fornis, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.3 in
Chance of precipitation35%
Record high75° (2008)
Record low28° (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 Fornis, 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 Fornis, 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.