Monthly outlook for Arnold, WI: average high 61.6°, average low 41.8°. That is 4.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (80.4°), the coolest 18 October (23.6°).
61.6°/41.8°
Average high / low
+4.1°
Above normal
4 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
61.4°
55.5°
+3.3°
19 October – 28 October
62°
51.3°
+5.9°
29 October – 7 November
at normal
46.3°
—
October records over 66 years
84.4°1 October 2023All-time high
18.9°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Gilman (11 mi).
Sat, 1080° / 49°0
80 °
Arnold, Saturday, 10 October
Clear. High 80°, low 49°.
Pressure29.85 inHg
Wind14.4 mph S
Humidity59%
Visibility6.2 mi
Dew point60°
Sun, 1179° / 54°0
79 °
Arnold, Sunday, 11 October
Clear. High 79°, low 54°.
Pressure29.83 inHg
Wind9.5 mph S
Humidity52%
Visibility6.2 mi
Dew point55°
Mon, 1274° / 57°0.13
74 °
Arnold, Monday, 12 October
Light rain. High 74°, low 57°.
Pressure29.71 inHg
Wind3.7 mph N
Humidity70%
Visibility6.2 mi
Dew point63°
Tue, 1360° / 51°0.14
60 °
Arnold, Tuesday, 13 October
Light rain. High 60°, low 51°.
Pressure29.91 inHg
Wind5.8 mph N
Humidity73%
Visibility6.2 mi
Dew point50°
Wed, 1458° / 47°0
58 °
Arnold, Wednesday, 14 October
Overcast. High 58°, low 47°.
Pressure30.21 inHg
Wind6.7 mph N
Humidity62%
Visibility—
Dew point43°
Thu, 1554° / 42°0.62
54 °
Arnold, Thursday, 15 October
Rain. High 54°, low 42°.
Pressure29.88 inHg
Wind15.6 mph SE
Humidity92%
Visibility—
Dew point46°
Fri, 1652° / 35°0.06
52 °
Arnold, Friday, 16 October
Snow. High 52°, low 35°.
Pressure29.71 inHg
Wind21.3 mph W
Humidity60%
Visibility—
Dew point30°
Sat, 1740° / 28°0
40 °
Arnold, Saturday, 17 October
Light snow. High 40°, low 28°.
Pressure30.42 inHg
Wind21.4 mph NW
Humidity52%
Visibility—
Dew point21°
Sun, 1848° / 24°0
48 °
Arnold, Sunday, 18 October
Clear. High 48°, low 24°.
Pressure30.42 inHg
Wind10.9 mph SW
Humidity34%
Visibility—
Dew point16°
Mon, 1956° / 33°0
56 °
Arnold, Monday, 19 October
Partly cloudy. High 56°, low 33°.
Pressure30.27 inHg
Wind8.8 mph SW
Humidity46%
Visibility—
Dew point31°
Tue, 2061° / 38°0
61 °
Arnold, Tuesday, 20 October
Overcast. High 61°, low 38°.
Pressure30.33 inHg
Wind9.6 mph S
Humidity46%
Visibility—
Dew point35°
Wed, 2169° / 44°0
69 °
Arnold, Wednesday, 21 October
Clear. High 69°, low 44°.
Pressure30.03 inHg
Wind17.2 mph SW
Humidity40%
Visibility—
Dew point38°
Thu, 2259° / 38°0
59 °
Arnold, Thursday, 22 October
Clear. High 59°, low 38°.
Pressure30.12 inHg
Wind9.8 mph NW
Humidity34%
Visibility—
Dew point27°
Fri, 2362° / 37°0
62 °
Arnold, Friday, 23 October
Clear. High 62°, low 37°.
Pressure29.97 inHg
Wind12.2 mph S
Humidity31%
Visibility—
Dew point26°
Sat, 2465° / 49°0.02
65 °
Arnold, Saturday, 24 October
Light rain. High 65°, low 49°.
Pressure29.85 inHg
Wind12.6 mph W
Humidity47%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2550° / 38°0.07
50 °
Arnold, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high73° (1989)
Record low25° (2020)
Mon, 2651° / 38°0.07
51 °
Arnold, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high73° (1989)
Record low21° (1981)
Tue, 2750° / 37°0.09
50 °
Arnold, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high66° (1989)
Record low19° (2020)
Wed, 2849° / 36°0.09
49 °
Arnold, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation23%
Record high66° (2024)
Record low25° (1969)
Thu, 2949° / 36°0.09
49 °
Arnold, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation27%
Record high77° (2024)
Record low21° (1988)
Fri, 3050° / 36°0.07
50 °
Arnold, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation35%
Record high72° (2024)
Record low20° (1988)
Sat, 3148° / 36°0.1
48 °
Arnold, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (2000)
Record low19° (1996)
Sun, 0146° / 35°0.13
46 °
Arnold, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.13 in
Chance of precipitation25%
Record high69° (2000)
Record low21° (1984)
Mon, 0246° / 34°0.06
46 °
Arnold, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2022)
Record low14° (1991)
Tue, 0346° / 34°0.04
46 °
Arnold, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (2008)
Record low11° (1991)
Wed, 0445° / 33°0.07
45 °
Arnold, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high67° (2008)
Record low3° (1991)
Thu, 0545° / 33°0.07
45 °
Arnold, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high66° (2016)
Record low10° (1991)
Fri, 0645° / 33°0.05
45 °
Arnold, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2020)
Record low2° (1991)
Sat, 0744° / 32°0.03
44 °
Arnold, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.03 in
Chance of precipitation22%
Record high67° (2020)
Record low-12° (1991)
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 Arnold, 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 Arnold, 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.