Monthly outlook for Declezville, CA: average high 79.2°, average low 65.1°. That is 0.1° below the climate normal for October. Precipitation is expected on 5 days (about 4.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 22 October (89.2°), the coolest 14 October (51.2°).
79.2°/65.1°
Average high / low
−0.1°
Below normal
5 / 2
Wet days / normal
4.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
78°
80.2°
-1.2°
21 October – 30 October
81.2°
77.1°
+2.3°
31 October – 9 November
at normal
74.3°
—
October records over 66 years
106.5°1 October 2020All-time high
31.3°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Jurupa Valley (3 mi).
Mon, 1262° / 55°0.27
62 °
Declezville, Monday, 12 October
Rain. High 62°, low 55°.
Pressure29.91 inHg
Wind5.1 mph SW
Humidity76%
Visibility6.2 mi
Dew point54°
Tue, 1367° / 52°0
67 °
Declezville, Tuesday, 13 October
Mostly clear. High 67°, low 52°.
Pressure30.00 inHg
Wind2.4 mph W
Humidity59%
Visibility6.2 mi
Dew point48°
Wed, 1475° / 51°0
75 °
Declezville, Wednesday, 14 October
Clear. High 75°, low 51°.
Pressure30.06 inHg
Wind0.7 mph S
Humidity38%
Visibility6.2 mi
Dew point45°
Thu, 1581° / 56°0
81 °
Declezville, Thursday, 15 October
Clear. High 81°, low 56°.
Pressure29.97 inHg
Wind7.4 mph NE
Humidity26%
Visibility6.2 mi
Dew point41°
Fri, 1684° / 69°0
84 °
Declezville, Friday, 16 October
Clear. High 84°, low 69°.
Pressure29.94 inHg
Wind15 mph NE
Humidity25%
Visibility—
Dew point39°
Sat, 1789° / 66°0
89 °
Declezville, Saturday, 17 October
Clear. High 89°, low 66°.
Pressure29.97 inHg
Wind7.2 mph N
Humidity30%
Visibility—
Dew point46°
Sun, 1889° / 76°0
89 °
Declezville, Sunday, 18 October
Clear. High 89°, low 76°.
Pressure30.00 inHg
Wind11 mph SW
Humidity23%
Visibility—
Dew point41°
Mon, 1986° / 74°0
86 °
Declezville, Monday, 19 October
Clear. High 86°, low 74°.
Pressure29.97 inHg
Wind11.4 mph W
Humidity27%
Visibility—
Dew point44°
Tue, 2081° / 69°0
81 °
Declezville, Tuesday, 20 October
Clear. High 81°, low 69°.
Pressure29.85 inHg
Wind8.2 mph SW
Humidity43%
Visibility—
Dew point51°
Wed, 2185° / 70°0
85 °
Declezville, Wednesday, 21 October
Clear. High 85°, low 70°.
Pressure29.94 inHg
Wind13 mph N
Humidity9%
Visibility—
Dew point15°
Thu, 2289° / 69°0
89 °
Declezville, Thursday, 22 October
Clear. High 89°, low 69°.
Pressure30.00 inHg
Wind8.9 mph NE
Humidity7%
Visibility—
Dew point10°
Fri, 2387° / 74°0
87 °
Declezville, Friday, 23 October
Overcast. High 87°, low 74°.
Pressure29.80 inHg
Wind4.7 mph E
Humidity8%
Visibility—
Dew point15°
Sat, 2478° / 70°0.09
78 °
Declezville, Saturday, 24 October
Light rain. High 78°, low 70°.
Pressure29.85 inHg
Wind6.3 mph SW
Humidity26%
Visibility—
Dew point38°
Sun, 2580° / 68°0.33
80 °
Declezville, Sunday, 25 October
Light rain. High 80°, low 68°.
Pressure29.80 inHg
Wind5.5 mph S
Humidity54%
Visibility—
Dew point55°
Mon, 2669° / 61°2.62
69 °
Declezville, Monday, 26 October
Heavy rain. High 69°, low 61°.
Pressure29.85 inHg
Wind12.5 mph NW
Humidity77%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2777° / 53°0.06
77 °
Declezville, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.06 in
Chance of precipitation12%
Record high93° (2008)
Record low43° (1997)
Wed, 2876° / 52°0.04
76 °
Declezville, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.04 in
Chance of precipitation13%
Record high94° (2008)
Record low41° (1970)
Thu, 2975° / 52°0.02
75 °
Declezville, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high94° (2025)
Record low35° (1971)
Fri, 3074° / 51°0.05
74 °
Declezville, Friday, 30 October
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.05 in
Chance of precipitation18%
Record high92° (2025)
Record low31° (1971)
Sat, 3175° / 51°0.02
75 °
Declezville, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high92° (2020)
Record low38° (1991)
Sun, 0176° / 50°0.04
76 °
Declezville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high76°
Average low50°
Average precipitation0.04 in
Chance of precipitation13%
Record high91° (1997)
Record low38° (1971)
Mon, 0276° / 50°0.03
76 °
Declezville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high76°
Average low50°
Average precipitation0.03 in
Chance of precipitation17%
Record high91° (1997)
Record low38° (1971)
Tue, 0376° / 49°0.01
76 °
Declezville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high76°
Average low49°
Average precipitation0.01 in
Chance of precipitation5%
Record high93° (2010)
Record low39° (1990)
Wed, 0476° / 50°0.03
76 °
Declezville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high76°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high94° (2020)
Record low35° (1994)
Thu, 0575° / 50°0.01
75 °
Declezville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high75°
Average low50°
Average precipitation0.01 in
Chance of precipitation5%
Record high94° (2020)
Record low39° (2015)
Fri, 0673° / 50°0.02
73 °
Declezville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high90° (2006)
Record low41° (2015)
Sat, 0772° / 50°0.06
72 °
Declezville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.06 in
Chance of precipitation8%
Record high91° (2006)
Record low37° (2011)
Sun, 0872° / 50°0.07
72 °
Declezville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (2016)
Record low36° (2011)
Mon, 0972° / 49°0.06
72 °
Declezville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.06 in
Chance of precipitation17%
Record high92° (2025)
Record low37° (2011)
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 Declezville, 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 Declezville, 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.