Monthly outlook for Declezville, CA: average high 82.8°, average low 66.5°. That is 2.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 16 October (91.4°), the coolest 21 October (59°).
82.8°/66.5°
Average high / low
+2.6°
Above normal
2 / 2
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
81.4°
79.3°
+1.2°
25 October – 3 November
85°
76°
+5°
4 November – 13 November
at normal
72.6°
—
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).
Fri, 1691° / 70°0
91 °
Declezville, Friday, 16 October
Mostly clear. High 91°, low 70°.
Pressure30.00 inHg
Wind14.6 mph NE
Humidity19%
Visibility6.2 mi
Dew point39°
Sat, 1790° / 68°0
90 °
Declezville, Saturday, 17 October
Clear. High 90°, low 68°.
Pressure30.00 inHg
Wind2.1 mph S
Humidity15%
Visibility6.2 mi
Dew point34°
Sun, 1883° / 67°0
83 °
Declezville, Sunday, 18 October
Partly cloudy. High 83°, low 67°.
Pressure29.97 inHg
Wind2.1 mph S
Humidity23%
Visibility6.2 mi
Dew point39°
Mon, 1983° / 66°0
83 °
Declezville, Monday, 19 October
Clear. High 83°, low 66°.
Pressure29.97 inHg
Wind8.5 mph SW
Humidity27%
Visibility—
Dew point39°
Tue, 2078° / 64°0.09
78 °
Declezville, Tuesday, 20 October
Light rain. High 78°, low 64°.
Pressure29.91 inHg
Wind8.2 mph SW
Humidity35%
Visibility—
Dew point43°
Wed, 2166° / 59°0.63
66 °
Declezville, Wednesday, 21 October
Rain. High 66°, low 59°.
Pressure29.88 inHg
Wind5.8 mph N
Humidity58%
Visibility—
Dew point46°
Thu, 2272° / 61°0
72 °
Declezville, Thursday, 22 October
Clear. High 72°, low 61°.
Pressure30.03 inHg
Wind7.9 mph SW
Humidity45%
Visibility—
Dew point44°
Fri, 2380° / 63°0
80 °
Declezville, Friday, 23 October
Clear. High 80°, low 63°.
Pressure30.09 inHg
Wind7.4 mph W
Humidity28%
Visibility—
Dew point37°
Sat, 2483° / 68°0
83 °
Declezville, Saturday, 24 October
Clear. High 83°, low 68°.
Pressure30.15 inHg
Wind20.4 mph N
Humidity8%
Visibility—
Dew point13°
Sun, 2584° / 66°0
84 °
Declezville, Sunday, 25 October
Clear. High 84°, low 66°.
Pressure30.21 inHg
Wind9.5 mph NE
Humidity7%
Visibility—
Dew point8°
Mon, 2687° / 68°0
87 °
Declezville, Monday, 26 October
Clear. High 87°, low 68°.
Pressure30.03 inHg
Wind7.5 mph NE
Humidity7%
Visibility—
Dew point9°
Tue, 2788° / 70°0
88 °
Declezville, Tuesday, 27 October
Overcast. High 88°, low 70°.
Pressure30.00 inHg
Wind4.9 mph E
Humidity10%
Visibility—
Dew point18°
Wed, 2886° / 71°0
86 °
Declezville, Wednesday, 28 October
Overcast. High 86°, low 71°.
Pressure30.03 inHg
Wind9 mph W
Humidity11%
Visibility—
Dew point20°
Thu, 2984° / 71°0
84 °
Declezville, Thursday, 29 October
Clear. High 84°, low 71°.
Pressure30.06 inHg
Wind8.5 mph W
Humidity14%
Visibility—
Dew point25°
Fri, 3080° / 71°0
80 °
Declezville, Friday, 30 October
Overcast. High 80°, low 71°.
Pressure30.12 inHg
Wind5.3 mph W
Humidity18%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1071° / 49°0.04
71 °
Declezville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.04 in
Chance of precipitation15%
Record high93° (2025)
Record low39° (2020)
Wed, 1171° / 48°0.07
71 °
Declezville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.07 in
Chance of precipitation15%
Record high88° (2021)
Record low36° (2012)
Thu, 1272° / 48°0.04
72 °
Declezville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high72°
Average low48°
Average precipitation0.04 in
Chance of precipitation13%
Record high91° (2021)
Record low32° (2000)
Fri, 1372° / 47°0.04
72 °
Declezville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high72°
Average low47°
Average precipitation0.04 in
Chance of precipitation13%
Record high92° (2021)
Record low32° (1985)
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.