Monthly outlook for Delta, CA: average high 80.7°, average low 68.9°. That is 1.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (91.3°), the coolest 14 October (55°).
80.7°/68.9°
Average high / low
+1.9°
Above normal
1 / 1
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
80.1°
77.6°
+1.4°
19 October – 28 October
81.6°
76.2°
+3°
29 October – 7 November
at normal
73.9°
—
October records over 66 years
103.5°24 October 2017All-time high
36.3°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — West Athens (1 mi).
Sat, 1087° / 66°0.03
87 °
Delta, Saturday, 10 October
Light rain. High 87°, low 66°.
Pressure29.65 inHg
Wind1.3 mph SW
Humidity44%
Visibility6.2 mi
Dew point58°
Sun, 1177° / 63°0.03
77 °
Delta, Sunday, 11 October
Light rain. High 77°, low 63°.
Pressure29.62 inHg
Wind12.9 mph SW
Humidity76%
Visibility6.2 mi
Dew point60°
Mon, 1268° / 60°0.05
68 °
Delta, Monday, 12 October
Light rain. High 68°, low 60°.
Pressure29.91 inHg
Wind9.5 mph SW
Humidity50%
Visibility6.2 mi
Dew point49°
Tue, 1369° / 55°0
69 °
Delta, Tuesday, 13 October
Mostly clear. High 69°, low 55°.
Pressure30.03 inHg
Wind4.3 mph SW
Humidity51%
Visibility6.2 mi
Dew point50°
Wed, 1479° / 55°0
79 °
Delta, Wednesday, 14 October
Partly cloudy. High 79°, low 55°.
Pressure30.06 inHg
Wind6.8 mph W
Humidity36%
Visibility—
Dew point42°
Thu, 1576° / 67°0
76 °
Delta, Thursday, 15 October
Clear. High 76°, low 67°.
Pressure30.03 inHg
Wind9.5 mph W
Humidity63%
Visibility—
Dew point58°
Fri, 1686° / 72°0
86 °
Delta, Friday, 16 October
Clear. High 86°, low 72°.
Pressure30.00 inHg
Wind10.1 mph W
Humidity29%
Visibility—
Dew point44°
Sat, 1791° / 78°0
91 °
Delta, Saturday, 17 October
Clear. High 91°, low 78°.
Pressure29.91 inHg
Wind9.8 mph W
Humidity20%
Visibility—
Dew point40°
Sun, 1884° / 76°0
84 °
Delta, Sunday, 18 October
Clear. High 84°, low 76°.
Pressure29.91 inHg
Wind12.3 mph SW
Humidity31%
Visibility—
Dew point49°
Mon, 1980° / 73°0
80 °
Delta, Monday, 19 October
Clear. High 80°, low 73°.
Pressure29.91 inHg
Wind8.8 mph SW
Humidity50%
Visibility—
Dew point57°
Tue, 2078° / 71°0
78 °
Delta, Tuesday, 20 October
Clear. High 78°, low 71°.
Pressure29.97 inHg
Wind9.9 mph W
Humidity57%
Visibility—
Dew point58°
Wed, 2182° / 71°0
82 °
Delta, Wednesday, 21 October
Clear. High 82°, low 71°.
Pressure29.97 inHg
Wind10.2 mph W
Humidity35%
Visibility—
Dew point48°
Thu, 2286° / 77°0
86 °
Delta, Thursday, 22 October
Clear. High 86°, low 77°.
Pressure29.88 inHg
Wind11.2 mph W
Humidity26%
Visibility—
Dew point45°
Fri, 2384° / 76°0
84 °
Delta, Friday, 23 October
Clear. High 84°, low 76°.
Pressure29.88 inHg
Wind10.1 mph W
Humidity28%
Visibility—
Dew point46°
Sat, 2480° / 73°0
80 °
Delta, Saturday, 24 October
Overcast. High 80°, low 73°.
Pressure29.94 inHg
Wind9.1 mph SW
Humidity50%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2576° / 57°0.01
76 °
Delta, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high76°
Average low57°
Average precipitation0.01 in
Chance of precipitation5%
Record high100° (2017)
Record low46° (1975)
Mon, 2676° / 55°0.01
76 °
Delta, Monday, 26 October
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.01 in
Chance of precipitation7%
Record high92° (1993)
Record low46° (1989)
Tue, 2775° / 55°0.04
75 °
Delta, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.04 in
Chance of precipitation8%
Record high91° (1973)
Record low47° (2020)
Wed, 2875° / 55°0.02
75 °
Delta, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high91° (2025)
Record low42° (1970)
Thu, 2974° / 54°0.01
74 °
Delta, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.01 in
Chance of precipitation3%
Record high94° (2025)
Record low38° (1971)
Fri, 3074° / 54°0.04
74 °
Delta, Friday, 30 October
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.04 in
Chance of precipitation13%
Record high92° (1962)
Record low36° (1971)
Sat, 3174° / 53°0.02
74 °
Delta, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high74°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high91° (1967)
Record low41° (1972)
Sun, 0175° / 52°0.04
75 °
Delta, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0.04 in
Chance of precipitation10%
Record high94° (1966)
Record low42° (1971)
Mon, 0275° / 53°0.01
75 °
Delta, Monday, 2 November
Climate normal for this date — 60-year average.
Average high75°
Average low53°
Average precipitation0.01 in
Chance of precipitation7%
Record high94° (1997)
Record low43° (1971)
Tue, 0375° / 52°0
75 °
Delta, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0 in
Chance of precipitation2%
Record high93° (2010)
Record low43° (1990)
Wed, 0474° / 53°0.02
74 °
Delta, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high74°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high94° (1976)
Record low39° (1994)
Thu, 0573° / 53°0
73 °
Delta, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0 in
Chance of precipitation2%
Record high95° (2020)
Record low43° (2011)
Fri, 0672° / 53°0.02
72 °
Delta, Friday, 6 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high91° (2006)
Record low44° (2011)
Sat, 0771° / 53°0.06
71 °
Delta, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.06 in
Chance of precipitation10%
Record high89° (2006)
Record low40° (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 Delta, 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 Delta, 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.