Monthly outlook for Alto, WI: average high 61°, average low 47.9°. That is 3.2° above the climate normal for October. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 23 October (69.1°), the coolest 17 October (37.1°).
61°/47.9°
Average high / low
+3.2°
Above normal
6 / 4
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
61.6°
56.4°
+2.9°
25 October – 3 November
60°
52.4°
+4.3°
4 November – 13 November
at normal
46.5°
—
October records over 66 years
84.2°3 October 2025All-time high
20.7°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Fox Lake (10 mi).
Fri, 1657° / 45°0.05
57 °
Alto, Friday, 16 October
Light rain. High 57°, low 45°.
Pressure30.12 inHg
Wind17.7 mph N
Humidity77%
Visibility6.2 mi
Dew point43°
Sat, 1756° / 37°0
56 °
Alto, Saturday, 17 October
Clear. High 56°, low 37°.
Pressure30.47 inHg
Wind12.8 mph SW
Humidity47%
Visibility6.2 mi
Dew point33°
Sun, 1859° / 43°0
59 °
Alto, Sunday, 18 October
Clear. High 59°, low 43°.
Pressure30.30 inHg
Wind17.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point41°
Mon, 1960° / 44°0
60 °
Alto, Monday, 19 October
Overcast. High 60°, low 44°.
Pressure30.30 inHg
Wind10.2 mph SW
Humidity60%
Visibility—
Dew point43°
Tue, 2064° / 45°0
64 °
Alto, Tuesday, 20 October
Clear. High 64°, low 45°.
Pressure30.30 inHg
Wind5.5 mph SE
Humidity54%
Visibility—
Dew point44°
Wed, 2165° / 46°0
65 °
Alto, Wednesday, 21 October
Clear. High 65°, low 46°.
Pressure30.36 inHg
Wind8.3 mph SE
Humidity53%
Visibility—
Dew point44°
Thu, 2263° / 49°0.01
63 °
Alto, Thursday, 22 October
Light rain. High 63°, low 49°.
Pressure30.18 inHg
Wind10.1 mph SW
Humidity63%
Visibility—
Dew point49°
Fri, 2369° / 57°0
69 °
Alto, Friday, 23 October
Light rain. High 69°, low 57°.
Pressure30.21 inHg
Wind16.6 mph SE
Humidity45%
Visibility—
Dew point45°
Sat, 2462° / 56°0.1
62 °
Alto, Saturday, 24 October
Light rain. High 62°, low 56°.
Pressure30.12 inHg
Wind17.8 mph SE
Humidity60%
Visibility—
Dew point47°
Sun, 2557° / 43°0
57 °
Alto, Sunday, 25 October
Clear. High 57°, low 43°.
Pressure30.53 inHg
Wind10.7 mph NW
Humidity49%
Visibility—
Dew point36°
Mon, 2657° / 42°0.01
57 °
Alto, Monday, 26 October
Light rain. High 57°, low 42°.
Pressure30.50 inHg
Wind12.3 mph SE
Humidity55%
Visibility—
Dew point39°
Tue, 2760° / 52°0.54
60 °
Alto, Tuesday, 27 October
Rain. High 60°, low 52°.
Pressure30.03 inHg
Wind16.8 mph S
Humidity89%
Visibility—
Dew point55°
Wed, 2858° / 46°0.31
58 °
Alto, Wednesday, 28 October
Rain. High 58°, low 46°.
Pressure29.91 inHg
Wind14.9 mph E
Humidity98%
Visibility—
Dew point54°
Thu, 2965° / 52°0.02
65 °
Alto, Thursday, 29 October
Light rain. High 65°, low 52°.
Pressure29.88 inHg
Wind12 mph S
Humidity73%
Visibility—
Dew point55°
Fri, 3063° / 57°0.32
63 °
Alto, Friday, 30 October
Rain. High 63°, low 57°.
Pressure29.71 inHg
Wind8.8 mph NE
Humidity94%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3153° / 40°0.1
53 °
Alto, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1971)
Record low25° (2019)
Sun, 0151° / 38°0.2
51 °
Alto, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.2 in
Chance of precipitation37%
Record high70° (2000)
Record low19° (2019)
Mon, 0250° / 37°0.12
50 °
Alto, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation37%
Record high71° (1961)
Record low18° (1991)
Tue, 0350° / 36°0.05
50 °
Alto, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation25%
Record high71° (2008)
Record low15° (1991)
Wed, 0449° / 37°0.08
49 °
Alto, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation27%
Record high71° (2008)
Record low12° (1991)
Thu, 0549° / 36°0.09
49 °
Alto, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2015)
Record low18° (1991)
Fri, 0649° / 35°0.09
49 °
Alto, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (1975)
Record low14° (1991)
Sat, 0748° / 34°0.03
48 °
Alto, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2020)
Record low6° (1991)
Sun, 0848° / 34°0.04
48 °
Alto, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.04 in
Chance of precipitation22%
Record high70° (2020)
Record low6° (2019)
Mon, 0947° / 35°0.11
47 °
Alto, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2020)
Record low18° (2017)
Tue, 1046° / 33°0.12
46 °
Alto, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation38%
Record high71° (2022)
Record low13° (2017)
Wed, 1144° / 31°0.06
44 °
Alto, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (1964)
Record low13° (2019)
Thu, 1242° / 30°0.06
42 °
Alto, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (1964)
Record low5° (2019)
Fri, 1343° / 30°0.04
43 °
Alto, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (1999)
Record low6° (1986)
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 Alto, 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 Alto, 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.