Monthly outlook for Allen, CA: average high 48.9°, average low 31.6°. That is 0.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 1.5 inches. The warmest day looks like 24 October (55.5°), the coolest 5 November (26.6°).
48.9°/31.6°
Average high / low
+0.2°
Above normal
2 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
49.6°
49.5°
+0°
31 October – 9 November
47.7°
45.3°
+1.3°
10 November – 19 November
at normal
40.6°
—
October records over 66 years
77°1 October 1980All-time high
6.1°18 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Kirkwood (6 mi).
Thu, 2245° / 32°0.37
45 °
Allen, Thursday, 22 October
Snow. High 45°, low 32°.
Pressure29.91 inHg
Wind7.1 mph SW
Humidity66%
Visibility6.2 mi
Dew point32°
Fri, 2345° / 32°0.02
45 °
Allen, Friday, 23 October
Light rain. High 45°, low 32°.
Pressure30.03 inHg
Wind3.1 mph NW
Humidity76%
Visibility6.2 mi
Dew point34°
Sat, 2456° / 30°0
56 °
Allen, Saturday, 24 October
Clear. High 56°, low 30°.
Pressure30.03 inHg
Wind4.9 mph E
Humidity41%
Visibility6.2 mi
Dew point24°
Sun, 2553° / 35°0
53 °
Allen, Sunday, 25 October
Mostly clear. High 53°, low 35°.
Pressure30.09 inHg
Wind6.8 mph SW
Humidity43%
Visibility—
Dew point28°
Mon, 2653° / 35°0
53 °
Allen, Monday, 26 October
Overcast. High 53°, low 35°.
Pressure30.15 inHg
Wind10.4 mph SW
Humidity41%
Visibility—
Dew point26°
Tue, 2753° / 33°0
53 °
Allen, Tuesday, 27 October
Overcast. High 53°, low 33°.
Pressure30.09 inHg
Wind10.6 mph SW
Humidity25%
Visibility—
Dew point13°
Wed, 2852° / 34°0
52 °
Allen, Wednesday, 28 October
Overcast. High 52°, low 34°.
Pressure29.94 inHg
Wind10.3 mph SW
Humidity16%
Visibility—
Dew point4°
Thu, 2941° / 29°0
41 °
Allen, Thursday, 29 October
Overcast. High 41°, low 29°.
Pressure29.91 inHg
Wind11.7 mph S
Humidity44%
Visibility—
Dew point20°
Fri, 3048° / 28°0
48 °
Allen, Friday, 30 October
Clear. High 48°, low 28°.
Pressure29.91 inHg
Wind8.7 mph W
Humidity35%
Visibility—
Dew point17°
Sat, 3148° / 27°0
48 °
Allen, Saturday, 31 October
Overcast. High 48°, low 27°.
Pressure29.88 inHg
Wind8.7 mph SW
Humidity13%
Visibility—
Dew point-5°
Sun, 0154° / 31°0
54 °
Allen, Sunday, 1 November
Clear. High 54°, low 31°.
Pressure30.03 inHg
Wind8.3 mph SW
Humidity9%
Visibility—
Dew point-8°
Mon, 0249° / 34°0
49 °
Allen, Monday, 2 November
Overcast. High 49°, low 34°.
Pressure30.15 inHg
Wind9.2 mph SW
Humidity32%
Visibility—
Dew point16°
Tue, 0346° / 33°0
46 °
Allen, Tuesday, 3 November
Overcast. High 46°, low 33°.
Pressure30.09 inHg
Wind7.1 mph W
Humidity39%
Visibility—
Dew point21°
Wed, 0450° / 31°0
50 °
Allen, Wednesday, 4 November
Partly cloudy. High 50°, low 31°.
Pressure29.97 inHg
Wind8.9 mph SW
Humidity30%
Visibility—
Dew point16°
Thu, 0540° / 27°0.01
40 °
Allen, Thursday, 5 November
Light snow. High 40°, low 27°.
Pressure29.94 inHg
Wind10.5 mph SW
Humidity60%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0644° / 26°0.11
44 °
Allen, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.11 in
Chance of precipitation27%
Record high60° (1976)
Record low8° (1972)
Sat, 0744° / 26°0.11
44 °
Allen, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.11 in
Chance of precipitation33%
Record high60° (1978)
Record low9° (2015)
Sun, 0843° / 24°0.17
43 °
Allen, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.17 in
Chance of precipitation33%
Record high61° (1978)
Record low5° (2011)
Mon, 0942° / 23°0.13
42 °
Allen, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.13 in
Chance of precipitation37%
Record high60° (2025)
Record low2° (2020)
Tue, 1042° / 24°0.15
42 °
Allen, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.15 in
Chance of precipitation33%
Record high60° (1990)
Record low7° (2012)
Wed, 1142° / 23°0.15
42 °
Allen, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.15 in
Chance of precipitation33%
Record high58° (1990)
Record low0° (2000)
Thu, 1242° / 24°0.13
42 °
Allen, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.13 in
Chance of precipitation28%
Record high58° (2019)
Record low1° (2000)
Fri, 1341° / 23°0.19
41 °
Allen, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.19 in
Chance of precipitation30%
Record high62° (1995)
Record low-2° (1985)
Sat, 1441° / 23°0.15
41 °
Allen, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.15 in
Chance of precipitation30%
Record high62° (1995)
Record low-1° (1964)
Sun, 1540° / 23°0.07
40 °
Allen, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.07 in
Chance of precipitation22%
Record high56° (1995)
Record low2° (2000)
Mon, 1640° / 24°0.18
40 °
Allen, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.18 in
Chance of precipitation32%
Record high59° (2008)
Record low4° (2015)
Tue, 1740° / 23°0.24
40 °
Allen, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.24 in
Chance of precipitation32%
Record high64° (2019)
Record low7° (1994)
Wed, 1839° / 22°0.15
39 °
Allen, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.15 in
Chance of precipitation35%
Record high61° (2019)
Record low5° (1988)
Thu, 1939° / 21°0.11
39 °
Allen, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high39°
Average low21°
Average precipitation0.11 in
Chance of precipitation32%
Record high57° (1989)
Record low1° (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 Allen, 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 Allen, 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.