Monthly outlook for McArthur, CA: average high 62.3°, average low 42.7°. That is 0.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 27 October (75.9°), the coolest 24 October (30.4°).
62.3°/42.7°
Average high / low
+0.5°
Above normal
5 / 3
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
66.3°
63.1°
+1.8°
29 October – 7 November
55.5°
57.7°
-1.2°
8 November – 17 November
at normal
51.8°
—
October records over 66 years
95°1 October 2020All-time high
19.6°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Fall River Mills (3 mi).
Tue, 2068° / 41°0
68 °
McArthur, Tuesday, 20 October
Overcast. High 68°, low 41°.
Pressure29.88 inHg
Wind1.3 mph SW
Humidity27%
Visibility6.2 mi
Dew point32°
Wed, 2169° / 45°0.31
69 °
McArthur, Wednesday, 21 October
Rain. High 69°, low 45°.
Pressure29.88 inHg
Wind2.4 mph W
Humidity30%
Visibility6.2 mi
Dew point33°
Thu, 2253° / 45°0.5
53 °
McArthur, Thursday, 22 October
Rain. High 53°, low 45°.
Pressure29.97 inHg
Wind0.3 mph E
Humidity92%
Visibility3.2 mi
Dew point48°
Fri, 2355° / 36°0
55 °
McArthur, Friday, 23 October
Partly cloudy. High 55°, low 36°.
Pressure30.24 inHg
Wind7.4 mph NE
Humidity46%
Visibility6.2 mi
Dew point31°
Sat, 2461° / 30°0
61 °
McArthur, Saturday, 24 October
Mostly clear. High 61°, low 30°.
Pressure30.15 inHg
Wind4.1 mph NE
Humidity44%
Visibility—
Dew point27°
Sun, 2573° / 40°0
73 °
McArthur, Sunday, 25 October
Mostly clear. High 73°, low 40°.
Pressure30.21 inHg
Wind3.4 mph SE
Humidity21%
Visibility—
Dew point19°
Mon, 2672° / 44°0
72 °
McArthur, Monday, 26 October
Overcast. High 72°, low 44°.
Pressure30.09 inHg
Wind2.2 mph N
Humidity23%
Visibility—
Dew point21°
Tue, 2776° / 45°0
76 °
McArthur, Tuesday, 27 October
Partly cloudy. High 76°, low 45°.
Pressure30.00 inHg
Wind4.2 mph W
Humidity23%
Visibility—
Dew point23°
Wed, 2870° / 44°0
70 °
McArthur, Wednesday, 28 October
Overcast. High 70°, low 44°.
Pressure30.00 inHg
Wind8.5 mph W
Humidity27%
Visibility—
Dew point25°
Thu, 2966° / 43°0
66 °
McArthur, Thursday, 29 October
Overcast. High 66°, low 43°.
Pressure29.91 inHg
Wind8.1 mph W
Humidity26%
Visibility—
Dew point22°
Fri, 3053° / 47°0.13
53 °
McArthur, Friday, 30 October
Light rain. High 53°, low 47°.
Pressure29.91 inHg
Wind4.6 mph W
Humidity50%
Visibility—
Dew point32°
Sat, 3164° / 44°0
64 °
McArthur, Saturday, 31 October
Overcast. High 64°, low 44°.
Pressure29.94 inHg
Wind4.5 mph NW
Humidity66%
Visibility—
Dew point43°
Sun, 0149° / 47°0.45
49 °
McArthur, Sunday, 1 November
Rain. High 49°, low 47°.
Pressure29.80 inHg
Wind3.7 mph NE
Humidity95%
Visibility—
Dew point47°
Mon, 0254° / 45°0.03
54 °
McArthur, Monday, 2 November
Light rain. High 54°, low 45°.
Pressure30.24 inHg
Wind4.4 mph W
Humidity82%
Visibility—
Dew point45°
Tue, 0348° / 45°0.09
48 °
McArthur, Tuesday, 3 November
Light rain. High 48°, low 45°.
Pressure30.15 inHg
Wind3.4 mph NW
Humidity86%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0458° / 37°0.07
58 °
McArthur, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low37°
Average precipitation0.07 in
Chance of precipitation25%
Record high74° (1976)
Record low28° (1960)
Thu, 0557° / 37°0.11
57 °
McArthur, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low37°
Average precipitation0.11 in
Chance of precipitation27%
Record high77° (2020)
Record low27° (1961)
Fri, 0655° / 37°0.11
55 °
McArthur, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (1976)
Record low24° (1971)
Sat, 0755° / 36°0.14
55 °
McArthur, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.14 in
Chance of precipitation30%
Record high75° (1991)
Record low27° (1990)
Sun, 0854° / 35°0.12
54 °
McArthur, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.12 in
Chance of precipitation38%
Record high69° (1978)
Record low16° (1994)
Mon, 0952° / 34°0.13
52 °
McArthur, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.13 in
Chance of precipitation40%
Record high70° (2025)
Record low19° (1998)
Tue, 1053° / 34°0.15
53 °
McArthur, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low34°
Average precipitation0.15 in
Chance of precipitation35%
Record high71° (1990)
Record low23° (1998)
Wed, 1153° / 34°0.13
53 °
McArthur, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low34°
Average precipitation0.13 in
Chance of precipitation35%
Record high72° (2019)
Record low15° (1985)
Thu, 1253° / 34°0.11
53 °
McArthur, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high53°
Average low34°
Average precipitation0.11 in
Chance of precipitation30%
Record high66° (1990)
Record low8° (1985)
Fri, 1351° / 34°0.15
51 °
McArthur, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.15 in
Chance of precipitation35%
Record high73° (1995)
Record low4° (1985)
Sat, 1452° / 33°0.1
52 °
McArthur, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.1 in
Chance of precipitation33%
Record high74° (1995)
Record low9° (1964)
Sun, 1551° / 33°0.12
51 °
McArthur, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.12 in
Chance of precipitation30%
Record high68° (2025)
Record low0° (1964)
Mon, 1650° / 33°0.14
50 °
McArthur, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.14 in
Chance of precipitation33%
Record high69° (2008)
Record low1° (1964)
Tue, 1750° / 33°0.17
50 °
McArthur, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.17 in
Chance of precipitation38%
Record high69° (2019)
Record low6° (1964)
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 McArthur, 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 McArthur, 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.