Monthly outlook for Aztalan, WI: average high 62.4°, average low 49.4°. That is 3.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 23 October (69.7°), the coolest 17 October (38.5°).
62.4°/49.4°
Average high / low
+3.5°
Above normal
6 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
62.7°
57.2°
+3.1°
25 October – 3 November
61.8°
53.3°
+4.7°
4 November – 13 November
at normal
47.6°
—
October records over 66 years
84.9°3 October 2025All-time high
21.4°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Fort Atkinson (10 mi).
Fri, 1655° / 44°0.06
55 °
Aztalan, Friday, 16 October
Light rain. High 55°, low 44°.
Pressure30.12 inHg
Wind17.1 mph N
Humidity84%
Visibility6.2 mi
Dew point44°
Sat, 1756° / 38°0
56 °
Aztalan, Saturday, 17 October
Clear. High 56°, low 38°.
Pressure30.50 inHg
Wind11.1 mph SW
Humidity47%
Visibility6.2 mi
Dew point33°
Sun, 1860° / 43°0
60 °
Aztalan, Sunday, 18 October
Clear. High 60°, low 43°.
Pressure30.33 inHg
Wind17 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Mon, 1961° / 43°0
61 °
Aztalan, Monday, 19 October
Overcast. High 61°, low 43°.
Pressure30.33 inHg
Wind8.1 mph SW
Humidity60%
Visibility6.2 mi
Dew point44°
Tue, 2066° / 49°0
66 °
Aztalan, Tuesday, 20 October
Mostly clear. High 66°, low 49°.
Pressure30.30 inHg
Wind4.6 mph SW
Humidity49%
Visibility—
Dew point43°
Wed, 2167° / 47°0
67 °
Aztalan, Wednesday, 21 October
Clear. High 67°, low 47°.
Pressure30.33 inHg
Wind7.8 mph SE
Humidity46%
Visibility—
Dew point42°
Thu, 2269° / 51°0
69 °
Aztalan, Thursday, 22 October
Overcast. High 69°, low 51°.
Pressure30.18 inHg
Wind12.5 mph SW
Humidity49%
Visibility—
Dew point47°
Fri, 2370° / 57°0
70 °
Aztalan, Friday, 23 October
Overcast. High 70°, low 57°.
Pressure30.21 inHg
Wind14.3 mph S
Humidity43%
Visibility—
Dew point44°
Sat, 2465° / 58°0.03
65 °
Aztalan, Saturday, 24 October
Light rain. High 65°, low 58°.
Pressure30.12 inHg
Wind16.3 mph S
Humidity58%
Visibility—
Dew point48°
Sun, 2559° / 44°0
59 °
Aztalan, Sunday, 25 October
Clear. High 59°, low 44°.
Pressure30.53 inHg
Wind10.7 mph NW
Humidity47%
Visibility—
Dew point37°
Mon, 2660° / 42°0
60 °
Aztalan, Monday, 26 October
Overcast. High 60°, low 42°.
Pressure30.47 inHg
Wind12 mph SE
Humidity54%
Visibility—
Dew point40°
Tue, 2765° / 55°0.26
65 °
Aztalan, Tuesday, 27 October
Rain. High 65°, low 55°.
Pressure30.06 inHg
Wind17.9 mph S
Humidity67%
Visibility—
Dew point53°
Wed, 2859° / 50°0.44
59 °
Aztalan, Wednesday, 28 October
Rain. High 59°, low 50°.
Pressure29.94 inHg
Wind15.1 mph E
Humidity95%
Visibility—
Dew point55°
Thu, 2962° / 55°0.07
62 °
Aztalan, Thursday, 29 October
Light rain. High 62°, low 55°.
Pressure29.91 inHg
Wind9 mph S
Humidity89%
Visibility—
Dew point58°
Fri, 3066° / 59°0.39
66 °
Aztalan, Friday, 30 October
Rain. High 66°, low 59°.
Pressure29.68 inHg
Wind22.3 mph SW
Humidity81%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3153° / 41°0.09
53 °
Aztalan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.09 in
Chance of precipitation37%
Record high69° (1974)
Record low25° (2019)
Sun, 0152° / 40°0.19
52 °
Aztalan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.19 in
Chance of precipitation38%
Record high71° (2016)
Record low20° (2019)
Mon, 0251° / 39°0.12
51 °
Aztalan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation35%
Record high72° (1961)
Record low21° (1991)
Tue, 0351° / 38°0.05
51 °
Aztalan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (1964)
Record low16° (1991)
Wed, 0450° / 38°0.08
50 °
Aztalan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (2008)
Record low13° (1991)
Thu, 0550° / 37°0.1
50 °
Aztalan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high69° (2015)
Record low18° (1991)
Fri, 0649° / 36°0.08
49 °
Aztalan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high68° (1975)
Record low18° (1991)
Sat, 0749° / 36°0.03
49 °
Aztalan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2020)
Record low9° (1991)
Sun, 0849° / 36°0.04
49 °
Aztalan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2020)
Record low12° (1991)
Mon, 0949° / 36°0.1
49 °
Aztalan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation33%
Record high73° (2020)
Record low18° (1991)
Tue, 1047° / 35°0.09
47 °
Aztalan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation33%
Record high71° (2022)
Record low14° (2017)
Wed, 1145° / 32°0.07
45 °
Aztalan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (1964)
Record low13° (2019)
Thu, 1243° / 31°0.06
43 °
Aztalan, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation27%
Record high62° (1964)
Record low4° (2019)
Fri, 1344° / 31°0.04
44 °
Aztalan, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high66° (1989)
Record low7° (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 Aztalan, 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 Aztalan, 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.