Monthly outlook for Bayside, WI: average high 59.7°, average low 48.6°. That is 2.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 October (64.9°), the coolest 31 October (39.1°).
59.7°/48.6°
Average high / low
+2.8°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
61.2°
55.9°
+3°
26 October – 4 November
57.3°
51.9°
+3°
5 November – 14 November
at normal
47°
—
October records over 66 years
86.5°3 October 2025All-time high
26.2°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Whitefish Bay (5 mi).
Sat, 1757° / 41°0
57 °
Bayside, Saturday, 17 October
Clear. High 57°, low 41°.
Pressure30.47 inHg
Wind9 mph SW
Humidity47%
Visibility6.2 mi
Dew point33°
Sun, 1862° / 45°0
62 °
Bayside, Sunday, 18 October
Clear. High 62°, low 45°.
Pressure30.39 inHg
Wind14.4 mph SW
Humidity46%
Visibility6.2 mi
Dew point37°
Mon, 1961° / 43°0
61 °
Bayside, Monday, 19 October
Overcast. High 61°, low 43°.
Pressure30.39 inHg
Wind5.1 mph S
Humidity53%
Visibility6.2 mi
Dew point43°
Tue, 2062° / 44°0
62 °
Bayside, Tuesday, 20 October
Mostly clear. High 62°, low 44°.
Pressure30.39 inHg
Wind6.6 mph SE
Humidity66%
Visibility—
Dew point48°
Wed, 2165° / 46°0
65 °
Bayside, Wednesday, 21 October
Clear. High 65°, low 46°.
Pressure30.33 inHg
Wind7.9 mph SE
Humidity49%
Visibility—
Dew point43°
Thu, 2259° / 55°0.02
59 °
Bayside, Thursday, 22 October
Light rain. High 59°, low 55°.
Pressure30.18 inHg
Wind7.4 mph S
Humidity67%
Visibility—
Dew point47°
Fri, 2363° / 53°0
63 °
Bayside, Friday, 23 October
Clear. High 63°, low 53°.
Pressure30.21 inHg
Wind9 mph SE
Humidity57%
Visibility—
Dew point46°
Sat, 2464° / 55°0
64 °
Bayside, Saturday, 24 October
Clear. High 64°, low 55°.
Pressure30.21 inHg
Wind12.3 mph SE
Humidity63%
Visibility—
Dew point50°
Sun, 2564° / 55°0
64 °
Bayside, Sunday, 25 October
Overcast. High 64°, low 55°.
Pressure30.18 inHg
Wind6.9 mph SE
Humidity52%
Visibility—
Dew point45°
Mon, 2659° / 55°0
59 °
Bayside, Monday, 26 October
Overcast. High 59°, low 55°.
Pressure30.03 inHg
Wind8.1 mph E
Humidity70%
Visibility—
Dew point48°
Tue, 2757° / 50°0.06
57 °
Bayside, Tuesday, 27 October
Light rain. High 57°, low 50°.
Pressure29.77 inHg
Wind17 mph SW
Humidity80%
Visibility—
Dew point46°
Wed, 2862° / 48°0
62 °
Bayside, Wednesday, 28 October
Overcast. High 62°, low 48°.
Pressure29.94 inHg
Wind12.7 mph SW
Humidity54%
Visibility—
Dew point42°
Thu, 2960° / 53°0
60 °
Bayside, Thursday, 29 October
Overcast. High 60°, low 53°.
Pressure29.85 inHg
Wind10.8 mph S
Humidity72%
Visibility—
Dew point50°
Fri, 3061° / 49°0.24
61 °
Bayside, Friday, 30 October
Rain. High 61°, low 49°.
Pressure29.44 inHg
Wind24.6 mph W
Humidity87%
Visibility—
Dew point56°
Sat, 3145° / 39°0.05
45 °
Bayside, Saturday, 31 October
Snow. High 45°, low 39°.
Pressure29.74 inHg
Wind22.3 mph W
Humidity68%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0152° / 43°0.17
52 °
Bayside, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.17 in
Chance of precipitation42%
Record high69° (2022)
Record low19° (2019)
Mon, 0251° / 42°0.15
51 °
Bayside, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation37%
Record high66° (2022)
Record low26° (1991)
Tue, 0350° / 41°0.05
50 °
Bayside, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2022)
Record low21° (1991)
Wed, 0450° / 42°0.09
50 °
Bayside, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2022)
Record low17° (1991)
Thu, 0550° / 42°0.11
50 °
Bayside, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.11 in
Chance of precipitation32%
Record high68° (2020)
Record low23° (1991)
Fri, 0649° / 40°0.09
49 °
Bayside, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2020)
Record low21° (1991)
Sat, 0749° / 40°0.04
49 °
Bayside, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.04 in
Chance of precipitation17%
Record high70° (2020)
Record low15° (2019)
Sun, 0848° / 40°0.04
48 °
Bayside, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (2020)
Record low12° (2019)
Mon, 0948° / 40°0.11
48 °
Bayside, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.11 in
Chance of precipitation35%
Record high74° (2020)
Record low20° (2017)
Tue, 1047° / 39°0.11
47 °
Bayside, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.11 in
Chance of precipitation37%
Record high73° (2022)
Record low16° (2017)
Wed, 1146° / 37°0.07
46 °
Bayside, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.07 in
Chance of precipitation33%
Record high64° (2022)
Record low14° (2019)
Thu, 1244° / 36°0.06
44 °
Bayside, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low36°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (1964)
Record low4° (2019)
Fri, 1344° / 35°0.05
44 °
Bayside, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high61° (1999)
Record low9° (2019)
Sat, 1445° / 36°0.05
45 °
Bayside, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.05 in
Chance of precipitation28%
Record high63° (2025)
Record low16° (2018)
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 Bayside, 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 Bayside, 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.