Monthly outlook for Cygnus, CA: average high 71.3°, average low 54.2°. That is 0.8° below the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 17 October (89.4°), the coolest 19 October (42.8°).
71.3°/54.2°
Average high / low
−0.8°
Below normal
3 / 2
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
73.5°
74.3°
-0.4°
27 October – 5 November
67.6°
69.7°
-1.2°
6 November – 15 November
at normal
65.2°
—
October records over 66 years
102.9°1 October 2020All-time high
40.5°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Suisun City (8 mi).
Sun, 1878° / 48°0
78 °
Cygnus, Sunday, 18 October
Clear. High 78°, low 48°.
Pressure30.00 inHg
Wind8.3 mph W
Humidity47%
Visibility6.2 mi
Dew point51°
Mon, 1967° / 43°0
67 °
Cygnus, Monday, 19 October
Clear. High 67°, low 43°.
Pressure29.94 inHg
Wind10.7 mph W
Humidity43%
Visibility6.2 mi
Dew point41°
Tue, 2070° / 48°0.01
70 °
Cygnus, Tuesday, 20 October
Light rain. High 70°, low 48°.
Pressure29.91 inHg
Wind1 mph W
Humidity45%
Visibility6.2 mi
Dew point43°
Wed, 2168° / 55°0.49
68 °
Cygnus, Wednesday, 21 October
Rain. High 68°, low 55°.
Pressure29.91 inHg
Wind4 mph SW
Humidity67%
Visibility6.2 mi
Dew point53°
Thu, 2266° / 53°0
66 °
Cygnus, Thursday, 22 October
Overcast. High 66°, low 53°.
Pressure30.00 inHg
Wind9.3 mph W
Humidity84%
Visibility—
Dew point54°
Fri, 2370° / 51°0
70 °
Cygnus, Friday, 23 October
Mostly clear. High 70°, low 51°.
Pressure30.12 inHg
Wind6.6 mph SW
Humidity66%
Visibility—
Dew point49°
Sat, 2476° / 57°0
76 °
Cygnus, Saturday, 24 October
Clear. High 76°, low 57°.
Pressure30.12 inHg
Wind4.8 mph NE
Humidity24%
Visibility—
Dew point28°
Sun, 2575° / 59°0
75 °
Cygnus, Sunday, 25 October
Overcast. High 75°, low 59°.
Pressure30.03 inHg
Wind5.1 mph NE
Humidity23%
Visibility—
Dew point28°
Mon, 2676° / 59°0
76 °
Cygnus, Monday, 26 October
Overcast. High 76°, low 59°.
Pressure29.80 inHg
Wind8.4 mph NE
Humidity23%
Visibility—
Dew point28°
Tue, 2775° / 58°0
75 °
Cygnus, Tuesday, 27 October
Overcast. High 75°, low 58°.
Pressure29.80 inHg
Wind11.1 mph SW
Humidity22%
Visibility—
Dew point30°
Wed, 2867° / 57°0
67 °
Cygnus, Wednesday, 28 October
Partly cloudy. High 67°, low 57°.
Pressure30.06 inHg
Wind12.5 mph SW
Humidity56%
Visibility—
Dew point46°
Thu, 2970° / 54°0
70 °
Cygnus, Thursday, 29 October
Clear. High 70°, low 54°.
Pressure30.15 inHg
Wind10 mph SW
Humidity51%
Visibility—
Dew point44°
Fri, 3061° / 57°0.05
61 °
Cygnus, Friday, 30 October
Light rain. High 61°, low 57°.
Pressure30.00 inHg
Wind10.6 mph SW
Humidity78%
Visibility—
Dew point53°
Sat, 3164° / 57°0
64 °
Cygnus, Saturday, 31 October
Overcast. High 64°, low 57°.
Pressure30.06 inHg
Wind5.5 mph SW
Humidity64%
Visibility—
Dew point47°
Sun, 0169° / 58°0.04
69 °
Cygnus, Sunday, 1 November
Light rain. High 69°, low 58°.
Pressure30.03 inHg
Wind11.5 mph SW
Humidity60%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0270° / 51°0.04
70 °
Cygnus, Monday, 2 November
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.04 in
Chance of precipitation13%
Record high85° (1967)
Record low42° (2003)
Tue, 0370° / 51°0.04
70 °
Cygnus, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.04 in
Chance of precipitation12%
Record high89° (2018)
Record low38° (2022)
Wed, 0469° / 51°0.03
69 °
Cygnus, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.03 in
Chance of precipitation10%
Record high80° (1993)
Record low39° (1973)
Thu, 0568° / 50°0.07
68 °
Cygnus, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high68°
Average low50°
Average precipitation0.07 in
Chance of precipitation15%
Record high83° (2020)
Record low41° (2011)
Fri, 0667° / 51°0.07
67 °
Cygnus, Friday, 6 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.07 in
Chance of precipitation15%
Record high81° (2018)
Record low44° (2004)
Sat, 0767° / 50°0.07
67 °
Cygnus, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.07 in
Chance of precipitation18%
Record high79° (1991)
Record low40° (1971)
Sun, 0866° / 49°0.06
66 °
Cygnus, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.06 in
Chance of precipitation15%
Record high79° (1990)
Record low38° (2021)
Mon, 0965° / 48°0.09
65 °
Cygnus, Monday, 9 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.09 in
Chance of precipitation18%
Record high79° (1990)
Record low41° (1982)
Tue, 1065° / 48°0.14
65 °
Cygnus, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.14 in
Chance of precipitation30%
Record high78° (1990)
Record low36° (2022)
Wed, 1164° / 48°0.1
64 °
Cygnus, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2019)
Record low38° (2022)
Thu, 1265° / 48°0.07
65 °
Cygnus, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation22%
Record high77° (1995)
Record low36° (1985)
Fri, 1364° / 48°0.15
64 °
Cygnus, Friday, 13 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.15 in
Chance of precipitation30%
Record high80° (1995)
Record low36° (2000)
Sat, 1464° / 48°0.06
64 °
Cygnus, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (2008)
Record low36° (2022)
Sun, 1564° / 48°0.07
64 °
Cygnus, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.07 in
Chance of precipitation20%
Record high78° (2010)
Record low35° (2018)
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 Cygnus, 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 Cygnus, 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.