Monthly outlook for Cygnus, CA: average high 75.5°, average low 53.9°. That is 0.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 16 October (92.1°), the coolest 13 October (48.6°).
75.5°/53.9°
Average high / low
+0.6°
Above normal
1 / 2
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
77.3°
75.8°
+0.8°
23 October – 1 November
72.5°
71.2°
+0.7°
2 November – 11 November
at normal
67.1°
—
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).
Wed, 1480° / 50°0
80 °
Cygnus, Wednesday, 14 October
Clear. High 80°, low 50°.
Pressure30.12 inHg
Wind2.7 mph SW
Humidity28%
Visibility6.2 mi
Dew point40°
Thu, 1592° / 52°0
92 °
Cygnus, Thursday, 15 October
Clear. High 92°, low 52°.
Pressure30.09 inHg
Wind5 mph E
Humidity15%
Visibility6.2 mi
Dew point33°
Fri, 1692° / 66°0
92 °
Cygnus, Friday, 16 October
Clear. High 92°, low 66°.
Pressure30.03 inHg
Wind6.2 mph E
Humidity12%
Visibility6.2 mi
Dew point30°
Sat, 1789° / 61°0
89 °
Cygnus, Saturday, 17 October
Clear. High 89°, low 61°.
Pressure30.00 inHg
Wind2.8 mph SW
Humidity23%
Visibility6.2 mi
Dew point41°
Sun, 1872° / 56°0
72 °
Cygnus, Sunday, 18 October
Clear. High 72°, low 56°.
Pressure30.00 inHg
Wind14.5 mph W
Humidity57%
Visibility—
Dew point50°
Mon, 1967° / 53°0.02
67 °
Cygnus, Monday, 19 October
Light rain. High 67°, low 53°.
Pressure29.97 inHg
Wind12.1 mph SW
Humidity50%
Visibility—
Dew point43°
Tue, 2066° / 54°0.38
66 °
Cygnus, Tuesday, 20 October
Rain. High 66°, low 54°.
Pressure29.91 inHg
Wind9.5 mph SW
Humidity59%
Visibility—
Dew point46°
Wed, 2168° / 53°0
68 °
Cygnus, Wednesday, 21 October
Clear. High 68°, low 53°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity53%
Visibility—
Dew point44°
Thu, 2268° / 53°0
68 °
Cygnus, Thursday, 22 October
Mostly clear. High 68°, low 53°.
Pressure30.06 inHg
Wind10.5 mph SW
Humidity56%
Visibility—
Dew point46°
Fri, 2371° / 52°0
71 °
Cygnus, Friday, 23 October
Clear. High 71°, low 52°.
Pressure30.06 inHg
Wind10.8 mph SW
Humidity31%
Visibility—
Dew point31°
Sat, 2469° / 49°0
69 °
Cygnus, Saturday, 24 October
Clear. High 69°, low 49°.
Pressure30.18 inHg
Wind8.7 mph SW
Humidity31%
Visibility—
Dew point29°
Sun, 2572° / 51°0
72 °
Cygnus, Sunday, 25 October
Clear. High 72°, low 51°.
Pressure30.21 inHg
Wind6.9 mph SW
Humidity23%
Visibility—
Dew point23°
Mon, 2677° / 55°0
77 °
Cygnus, Monday, 26 October
Clear. High 77°, low 55°.
Pressure30.06 inHg
Wind5.3 mph N
Humidity19%
Visibility—
Dew point22°
Tue, 2775° / 55°0
75 °
Cygnus, Tuesday, 27 October
Clear. High 75°, low 55°.
Pressure30.06 inHg
Wind9.1 mph NE
Humidity18%
Visibility—
Dew point20°
Wed, 2872° / 54°0
72 °
Cygnus, Wednesday, 28 October
Overcast. High 72°, low 54°.
Pressure30.18 inHg
Wind6.2 mph E
Humidity18%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2970° / 51°0.06
70 °
Cygnus, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.06 in
Chance of precipitation20%
Record high81° (1960)
Record low42° (1971)
Fri, 3069° / 51°0.06
69 °
Cygnus, Friday, 30 October
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.06 in
Chance of precipitation17%
Record high84° (2015)
Record low42° (2023)
Sat, 3170° / 51°0.02
70 °
Cygnus, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.02 in
Chance of precipitation13%
Record high83° (2018)
Record low40° (2023)
Sun, 0170° / 51°0.06
70 °
Cygnus, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.06 in
Chance of precipitation13%
Record high87° (2018)
Record low39° (2019)
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)
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.