Monthly outlook for Collinsville, CA: average high 67.6°, average low 50.6°. That is 2.4° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 7 November (75.5°), the coolest 20 November (45.3°).
67.6°/50.6°
Average high / low
+2.4°
Above normal
3 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
72.1°
64.5°
+4.2°
16 November – 25 November
60.2°
60.9°
-0.4°
26 November – 5 December
at normal
58°
—
November records over 66 years
83.1°3 November 2018All-time high
33.6°29 November 1975All-time low
Climate normals and records are computed from the nearest reference point — Antioch (7 mi).
Sat, 0775° / 49°0
75 °
Collinsville, Saturday, 7 November
Overcast. High 75°, low 49°.
Pressure30.06 inHg
Wind3 mph NE
Humidity40%
Visibility6.2 mi
Dew point44°
Sun, 0870° / 54°0
70 °
Collinsville, Sunday, 8 November
Overcast. High 70°, low 54°.
Pressure30.12 inHg
Wind2.2 mph W
Humidity60%
Visibility6.2 mi
Dew point51°
Mon, 0973° / 52°0
73 °
Collinsville, Monday, 9 November
Overcast. High 73°, low 52°.
Pressure30.12 inHg
Wind0.5 mph SW
Humidity57%
Visibility5.9 mi
Dew point53°
Tue, 1074° / 53°0
74 °
Collinsville, Tuesday, 10 November
Clear. High 74°, low 53°.
Pressure30.18 inHg
Wind5 mph W
Humidity65%
Visibility—
Dew point52°
Wed, 1174° / 53°0
74 °
Collinsville, Wednesday, 11 November
Overcast. High 74°, low 53°.
Pressure30.12 inHg
Wind4.4 mph NE
Humidity61%
Visibility—
Dew point49°
Thu, 1272° / 55°0
72 °
Collinsville, Thursday, 12 November
Partly cloudy. High 72°, low 55°.
Pressure30.00 inHg
Wind5.5 mph NW
Humidity35%
Visibility—
Dew point35°
Fri, 1372° / 56°0
72 °
Collinsville, Friday, 13 November
Overcast. High 72°, low 56°.
Pressure29.97 inHg
Wind6.9 mph SW
Humidity48%
Visibility—
Dew point44°
Sat, 1470° / 55°0.09
70 °
Collinsville, Saturday, 14 November
Light rain. High 70°, low 55°.
Pressure30.03 inHg
Wind8.1 mph W
Humidity49%
Visibility—
Dew point44°
Sun, 1566° / 53°0
66 °
Collinsville, Sunday, 15 November
Overcast. High 66°, low 53°.
Pressure30.06 inHg
Wind9.4 mph W
Humidity71%
Visibility—
Dew point50°
Mon, 1662° / 50°0.01
62 °
Collinsville, Monday, 16 November
Light rain. High 62°, low 50°.
Pressure30.12 inHg
Wind11.6 mph SW
Humidity50%
Visibility—
Dew point41°
Tue, 1761° / 49°0.08
61 °
Collinsville, Tuesday, 17 November
Light rain. High 61°, low 49°.
Pressure30.18 inHg
Wind9.4 mph W
Humidity63%
Visibility—
Dew point44°
Wed, 1859° / 45°0
59 °
Collinsville, Wednesday, 18 November
Overcast. High 59°, low 45°.
Pressure30.21 inHg
Wind6.4 mph N
Humidity54%
Visibility—
Dew point36°
Thu, 1963° / 46°0
63 °
Collinsville, Thursday, 19 November
Clear. High 63°, low 46°.
Pressure30.03 inHg
Wind14 mph N
Humidity26%
Visibility—
Dew point20°
Fri, 2059° / 45°0.01
59 °
Collinsville, Friday, 20 November
Light rain. High 59°, low 45°.
Pressure30.12 inHg
Wind3.4 mph NE
Humidity33%
Visibility—
Dew point23°
Sat, 2157° / 46°0.18
57 °
Collinsville, Saturday, 21 November
Rain. High 57°, low 46°.
Pressure30.12 inHg
Wind5 mph E
Humidity58%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2260° / 46°0.08
60 °
Collinsville, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.08 in
Chance of precipitation27%
Record high68° (2005)
Record low36° (1985)
Mon, 2360° / 46°0.05
60 °
Collinsville, Monday, 23 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.05 in
Chance of precipitation18%
Record high73° (1995)
Record low38° (1973)
Tue, 2460° / 46°0.08
60 °
Collinsville, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.08 in
Chance of precipitation18%
Record high73° (1995)
Record low34° (2010)
Wed, 2559° / 45°0.05
59 °
Collinsville, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.05 in
Chance of precipitation18%
Record high73° (1995)
Record low36° (2010)
Thu, 2659° / 44°0.06
59 °
Collinsville, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2002)
Record low36° (2015)
Fri, 2758° / 45°0.06
58 °
Collinsville, Friday, 27 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (1986)
Record low35° (2015)
Sat, 2858° / 44°0.11
58 °
Collinsville, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (1995)
Record low36° (2015)
Sun, 2958° / 44°0.11
58 °
Collinsville, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation22%
Record high72° (1995)
Record low34° (1975)
Mon, 3057° / 44°0.13
57 °
Collinsville, Monday, 30 November
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (1977)
Record low36° (2010)
Tue, 0158° / 45°0.1
58 °
Collinsville, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation25%
Record high66° (1977)
Record low38° (2007)
Wed, 0258° / 44°0.15
58 °
Collinsville, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.15 in
Chance of precipitation25%
Record high69° (2011)
Record low33° (2022)
Thu, 0358° / 44°0.12
58 °
Collinsville, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.12 in
Chance of precipitation28%
Record high68° (1979)
Record low37° (2022)
Fri, 0458° / 44°0.08
58 °
Collinsville, Friday, 4 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.08 in
Chance of precipitation22%
Record high67° (1979)
Record low34° (1971)
Sat, 0558° / 44°0.08
58 °
Collinsville, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.08 in
Chance of precipitation22%
Record high68° (1979)
Record low32° (1972)
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 Collinsville, 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 Collinsville, 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.