Monthly outlook for Antioch, CA: average high 70.6°, average low 53.7°. That is 0.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 3 November (78.8°), the coolest 27 October (48.9°).
70.6°/53.7°
Average high / low
+0.4°
Above normal
1 / 2
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
68.1°
70.8°
-1.5°
1 November – 10 November
74.8°
67°
+4.3°
11 November – 20 November
at normal
62.7°
—
October records over 66 years
104.9°2 October 2024All-time high
39.9°30 October 1971All-time low
Fri, 2366° / 52°0
66 °
Antioch, Friday, 23 October
Light rain. High 66°, low 52°.
Pressure30.09 inHg
Wind6.3 mph N
Humidity78%
Visibility6.2 mi
Dew point56°
Sat, 2470° / 51°0
70 °
Antioch, Saturday, 24 October
Clear. High 70°, low 51°.
Pressure30.03 inHg
Wind4.1 mph N
Humidity41%
Visibility6.2 mi
Dew point40°
Sun, 2571° / 50°0
71 °
Antioch, Sunday, 25 October
Partly cloudy. High 71°, low 50°.
Pressure30.06 inHg
Wind2.1 mph NE
Humidity58%
Visibility6.2 mi
Dew point50°
Mon, 2667° / 55°0
67 °
Antioch, Monday, 26 October
Clear. High 67°, low 55°.
Pressure30.09 inHg
Wind9.1 mph W
Humidity61%
Visibility6.2 mi
Dew point51°
Tue, 2767° / 49°0
67 °
Antioch, Tuesday, 27 October
Partly cloudy. High 67°, low 49°.
Pressure30.09 inHg
Wind8.5 mph SW
Humidity75%
Visibility—
Dew point49°
Wed, 2872° / 54°0
72 °
Antioch, Wednesday, 28 October
Overcast. High 72°, low 54°.
Pressure29.97 inHg
Wind5.6 mph N
Humidity29%
Visibility—
Dew point30°
Thu, 2971° / 55°0
71 °
Antioch, Thursday, 29 October
Overcast. High 71°, low 55°.
Pressure29.91 inHg
Wind9.1 mph W
Humidity44%
Visibility—
Dew point41°
Fri, 3066° / 51°0
66 °
Antioch, Friday, 30 October
Clear. High 66°, low 51°.
Pressure30.03 inHg
Wind8.4 mph W
Humidity49%
Visibility—
Dew point41°
Sat, 3168° / 52°0
68 °
Antioch, Saturday, 31 October
Overcast. High 68°, low 52°.
Pressure29.94 inHg
Wind5.4 mph N
Humidity44%
Visibility—
Dew point37°
Sun, 0173° / 50°0
73 °
Antioch, Sunday, 1 November
Clear. High 73°, low 50°.
Pressure29.97 inHg
Wind5.6 mph N
Humidity26%
Visibility—
Dew point25°
Mon, 0274° / 53°0
74 °
Antioch, Monday, 2 November
Clear. High 74°, low 53°.
Pressure30.06 inHg
Wind4.9 mph N
Humidity17%
Visibility—
Dew point17°
Tue, 0379° / 55°0
79 °
Antioch, Tuesday, 3 November
Mostly clear. High 79°, low 55°.
Pressure30.03 inHg
Wind6.7 mph SE
Humidity24%
Visibility—
Dew point28°
Wed, 0474° / 63°0.02
74 °
Antioch, Wednesday, 4 November
Light rain. High 74°, low 63°.
Pressure30.06 inHg
Wind5.2 mph W
Humidity58%
Visibility—
Dew point53°
Thu, 0576° / 59°0
76 °
Antioch, Thursday, 5 November
Partly cloudy. High 76°, low 59°.
Pressure30.06 inHg
Wind8.7 mph W
Humidity51%
Visibility—
Dew point49°
Fri, 0673° / 56°0
73 °
Antioch, Friday, 6 November
Overcast. High 73°, low 56°.
Pressure29.88 inHg
Wind12.4 mph SW
Humidity55%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0767° / 50°0.06
67 °
Antioch, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (1991)
Record low40° (1971)
Sun, 0865° / 49°0.06
65 °
Antioch, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.06 in
Chance of precipitation17%
Record high77° (1990)
Record low42° (2011)
Mon, 0965° / 49°0.07
65 °
Antioch, Monday, 9 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.07 in
Chance of precipitation20%
Record high76° (1990)
Record low39° (2020)
Tue, 1064° / 49°0.11
64 °
Antioch, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.11 in
Chance of precipitation32%
Record high76° (1990)
Record low41° (1994)
Wed, 1164° / 49°0.09
64 °
Antioch, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2019)
Record low40° (1978)
Thu, 1264° / 48°0.07
64 °
Antioch, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.07 in
Chance of precipitation18%
Record high76° (1990)
Record low36° (1985)
Fri, 1364° / 49°0.13
64 °
Antioch, Friday, 13 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.13 in
Chance of precipitation32%
Record high77° (1995)
Record low35° (2000)
Sat, 1464° / 48°0.06
64 °
Antioch, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (2008)
Record low37° (2000)
Sun, 1563° / 48°0.06
63 °
Antioch, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (2010)
Record low37° (1964)
Mon, 1663° / 49°0.07
63 °
Antioch, Monday, 16 November
Climate normal for this date — 60-year average.
Average high63°
Average low49°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (1977)
Record low35° (1964)
Tue, 1763° / 49°0.13
63 °
Antioch, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high63°
Average low49°
Average precipitation0.13 in
Chance of precipitation25%
Record high75° (1989)
Record low37° (1964)
Wed, 1862° / 47°0.06
62 °
Antioch, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.06 in
Chance of precipitation15%
Record high73° (2019)
Record low36° (1964)
Thu, 1961° / 47°0.06
61 °
Antioch, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (1989)
Record low35° (1994)
Fri, 2061° / 47°0.09
61 °
Antioch, Friday, 20 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2015)
Record low38° (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 Antioch, 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 Antioch, 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.