Monthly outlook for Lake Arrowhead, WI: average high 55.4°, average low 38.2°. That is 0.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 21 October (66.7°), the coolest 26 October (29.1°).
55.4°/38.2°
Average high / low
+0.8°
Above normal
2 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
58.8°
55.1°
+2°
24 October – 2 November
49.7°
51.2°
-0.9°
3 November – 12 November
at normal
45.2°
—
October records over 66 years
85.5°1 October 2023All-time high
21.2°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Lake Camelot (4 mi).
Thu, 1560° / 49°0.5
60 °
Lake Arrowhead, Thursday, 15 October
Rain. High 60°, low 49°.
Pressure30.03 inHg
Wind6.9 mph E
Humidity68%
Visibility6.2 mi
Dew point49°
Fri, 1652° / 39°0.17
52 °
Lake Arrowhead, Friday, 16 October
Rain. High 52°, low 39°.
Pressure30.12 inHg
Wind16.9 mph N
Humidity75%
Visibility6.2 mi
Dew point43°
Sat, 1757° / 34°0
57 °
Lake Arrowhead, Saturday, 17 October
Clear. High 57°, low 34°.
Pressure30.47 inHg
Wind9 mph SW
Humidity44%
Visibility6.2 mi
Dew point30°
Sun, 1861° / 44°0
61 °
Lake Arrowhead, Sunday, 18 October
Clear. High 61°, low 44°.
Pressure30.27 inHg
Wind12.7 mph SW
Humidity44%
Visibility—
Dew point35°
Mon, 1962° / 44°0
62 °
Lake Arrowhead, Monday, 19 October
Overcast. High 62°, low 44°.
Pressure30.27 inHg
Wind9.3 mph S
Humidity54%
Visibility—
Dew point42°
Tue, 2063° / 43°0
63 °
Lake Arrowhead, Tuesday, 20 October
Clear. High 63°, low 43°.
Pressure30.27 inHg
Wind6.2 mph S
Humidity29%
Visibility—
Dew point27°
Wed, 2167° / 47°0
67 °
Lake Arrowhead, Wednesday, 21 October
Overcast. High 67°, low 47°.
Pressure29.97 inHg
Wind16 mph N
Humidity52%
Visibility—
Dew point46°
Thu, 2252° / 36°0
52 °
Lake Arrowhead, Thursday, 22 October
Clear. High 52°, low 36°.
Pressure30.36 inHg
Wind11 mph N
Humidity37%
Visibility—
Dew point23°
Fri, 2352° / 31°0
52 °
Lake Arrowhead, Friday, 23 October
Clear. High 52°, low 31°.
Pressure30.45 inHg
Wind7 mph E
Humidity32%
Visibility—
Dew point19°
Sat, 2452° / 36°0.02
52 °
Lake Arrowhead, Saturday, 24 October
Light rain. High 52°, low 36°.
Pressure30.21 inHg
Wind8.7 mph SW
Humidity46%
Visibility—
Dew point30°
Sun, 2544° / 35°0.03
44 °
Lake Arrowhead, Sunday, 25 October
Light rain. High 44°, low 35°.
Pressure30.03 inHg
Wind15.3 mph NW
Humidity59%
Visibility—
Dew point26°
Mon, 2648° / 29°0
48 °
Lake Arrowhead, Monday, 26 October
Partly cloudy. High 48°, low 29°.
Pressure30.03 inHg
Wind8.1 mph W
Humidity29%
Visibility—
Dew point14°
Tue, 2749° / 29°0
49 °
Lake Arrowhead, Tuesday, 27 October
Clear. High 49°, low 29°.
Pressure30.03 inHg
Wind5 mph NE
Humidity25%
Visibility—
Dew point11°
Wed, 2851° / 31°0
51 °
Lake Arrowhead, Wednesday, 28 October
Clear. High 51°, low 31°.
Pressure30.03 inHg
Wind5.3 mph E
Humidity45%
Visibility—
Dew point27°
Thu, 2953° / 33°0
53 °
Lake Arrowhead, Thursday, 29 October
Clear. High 53°, low 33°.
Pressure30.00 inHg
Wind5.7 mph SE
Humidity44%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3052° / 38°0.08
52 °
Lake Arrowhead, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation32%
Record high76° (2024)
Record low21° (1988)
Sat, 3150° / 38°0.1
50 °
Lake Arrowhead, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation32%
Record high65° (2000)
Record low24° (1996)
Sun, 0149° / 37°0.15
49 °
Lake Arrowhead, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.15 in
Chance of precipitation33%
Record high69° (2000)
Record low24° (2023)
Mon, 0248° / 36°0.08
48 °
Lake Arrowhead, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (2022)
Record low15° (1991)
Tue, 0348° / 35°0.07
48 °
Lake Arrowhead, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2008)
Record low14° (1991)
Wed, 0447° / 35°0.08
47 °
Lake Arrowhead, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (2008)
Record low11° (1991)
Thu, 0547° / 35°0.1
47 °
Lake Arrowhead, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1975)
Record low16° (1991)
Fri, 0647° / 34°0.07
47 °
Lake Arrowhead, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (2020)
Record low8° (1991)
Sat, 0746° / 34°0.03
46 °
Lake Arrowhead, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2020)
Record low-1° (1991)
Sun, 0846° / 33°0.04
46 °
Lake Arrowhead, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (2020)
Record low1° (1991)
Mon, 0945° / 33°0.08
45 °
Lake Arrowhead, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation35%
Record high70° (2020)
Record low16° (2017)
Tue, 1044° / 32°0.13
44 °
Lake Arrowhead, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.13 in
Chance of precipitation40%
Record high70° (2022)
Record low11° (2017)
Wed, 1142° / 30°0.07
42 °
Lake Arrowhead, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high65° (1964)
Record low11° (1986)
Thu, 1240° / 29°0.06
40 °
Lake Arrowhead, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high59° (1964)
Record low5° (2019)
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 Lake Arrowhead, WI 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 Lake Arrowhead, WI 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.