Monthly outlook for Brown Deer, WI: average high 57°, average low 43.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (71.7°), the coolest 30 October (35.5°).
57°/43.1°
Average high / low
+2.2°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
59.8°
54.4°
+3°
31 October – 9 November
52.5°
50.1°
+1.3°
10 November – 19 November
at normal
44.9°
—
October records over 66 years
86.5°3 October 2025All-time high
26.1°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Thiensville (4 mi).
Thu, 2270° / 45°0
70 °
Brown Deer, Thursday, 22 October
Clear. High 70°, low 45°.
Pressure30.27 inHg
Wind4.9 mph NE
Humidity71%
Visibility6.2 mi
Dew point56°
Fri, 2367° / 50°0.02
67 °
Brown Deer, Friday, 23 October
Light rain. High 67°, low 50°.
Pressure30.36 inHg
Wind4.7 mph S
Humidity76%
Visibility5.9 mi
Dew point56°
Sat, 2468° / 50°0
68 °
Brown Deer, Saturday, 24 October
Overcast. High 68°, low 50°.
Pressure30.36 inHg
Wind8 mph S
Humidity61%
Visibility6.2 mi
Dew point50°
Sun, 2571° / 54°0
71 °
Brown Deer, Sunday, 25 October
Overcast. High 71°, low 54°.
Pressure30.33 inHg
Wind7.8 mph SW
Humidity51%
Visibility—
Dew point49°
Mon, 2658° / 41°0.2
58 °
Brown Deer, Monday, 26 October
Rain. High 58°, low 41°.
Pressure30.24 inHg
Wind13 mph N
Humidity79%
Visibility—
Dew point49°
Tue, 2746° / 37°0.06
46 °
Brown Deer, Tuesday, 27 October
Light rain. High 46°, low 37°.
Pressure30.42 inHg
Wind13.5 mph N
Humidity44%
Visibility—
Dew point24°
Wed, 2848° / 39°0
48 °
Brown Deer, Wednesday, 28 October
Overcast. High 48°, low 39°.
Pressure30.30 inHg
Wind7.2 mph W
Humidity45%
Visibility—
Dew point27°
Thu, 2950° / 36°0
50 °
Brown Deer, Thursday, 29 October
Clear. High 50°, low 36°.
Pressure30.18 inHg
Wind9.8 mph NW
Humidity37%
Visibility—
Dew point22°
Fri, 3048° / 35°0
48 °
Brown Deer, Friday, 30 October
Clear. High 48°, low 35°.
Pressure30.27 inHg
Wind7.4 mph W
Humidity46%
Visibility—
Dew point26°
Sat, 3158° / 43°0
58 °
Brown Deer, Saturday, 31 October
Clear. High 58°, low 43°.
Pressure29.97 inHg
Wind14.7 mph S
Humidity40%
Visibility—
Dew point31°
Sun, 0155° / 49°0.04
55 °
Brown Deer, Sunday, 1 November
Light rain. High 55°, low 49°.
Pressure29.91 inHg
Wind12.1 mph SW
Humidity61%
Visibility—
Dew point40°
Mon, 0255° / 45°0
55 °
Brown Deer, Monday, 2 November
Clear. High 55°, low 45°.
Pressure30.09 inHg
Wind14.6 mph NW
Humidity35%
Visibility—
Dew point27°
Tue, 0347° / 37°0
47 °
Brown Deer, Tuesday, 3 November
Overcast. High 47°, low 37°.
Pressure30.33 inHg
Wind8.7 mph NW
Humidity43%
Visibility—
Dew point24°
Wed, 0450° / 43°0
50 °
Brown Deer, Wednesday, 4 November
Overcast. High 50°, low 43°.
Pressure30.21 inHg
Wind6.6 mph E
Humidity50%
Visibility—
Dew point31°
Thu, 0550° / 43°0
50 °
Brown Deer, Thursday, 5 November
Partly cloudy. High 50°, low 43°.
Pressure30.42 inHg
Wind8.8 mph SE
Humidity50%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0649° / 38°0.09
49 °
Brown Deer, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2020)
Record low19° (1991)
Sat, 0749° / 38°0.04
49 °
Brown Deer, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (2020)
Record low13° (1991)
Sun, 0848° / 38°0.05
48 °
Brown Deer, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high66° (2020)
Record low11° (2019)
Mon, 0948° / 38°0.11
48 °
Brown Deer, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2020)
Record low20° (2017)
Tue, 1047° / 38°0.12
47 °
Brown Deer, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.12 in
Chance of precipitation40%
Record high73° (2022)
Record low15° (2017)
Wed, 1146° / 35°0.07
46 °
Brown Deer, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.07 in
Chance of precipitation35%
Record high65° (1964)
Record low14° (2019)
Thu, 1244° / 34°0.06
44 °
Brown Deer, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (1964)
Record low5° (2019)
Fri, 1344° / 34°0.05
44 °
Brown Deer, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (1999)
Record low8° (2019)
Sat, 1445° / 34°0.04
45 °
Brown Deer, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.04 in
Chance of precipitation25%
Record high62° (1971)
Record low15° (2018)
Sun, 1545° / 35°0.07
45 °
Brown Deer, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2025)
Record low21° (1982)
Mon, 1645° / 35°0.05
45 °
Brown Deer, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.05 in
Chance of precipitation20%
Record high61° (2023)
Record low22° (1989)
Tue, 1745° / 35°0.08
45 °
Brown Deer, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high64° (2016)
Record low15° (2005)
Wed, 1845° / 35°0.09
45 °
Brown Deer, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.09 in
Chance of precipitation32%
Record high63° (2016)
Record low13° (2014)
Thu, 1944° / 35°0.07
44 °
Brown Deer, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (1985)
Record low17° (2014)
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 Brown Deer, 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 Brown Deer, 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.