Monthly outlook for Brown Deer, WI: average high 59.3°, average low 45.7°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 3.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (72.2°), the coolest 30 October (33.3°).
59.3°/45.7°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
61.8°
54.4°
+4.1°
31 October – 9 November
55°
50.1°
+2.7°
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, 2272° / 44°0
72 °
Brown Deer, Thursday, 22 October
Clear. High 72°, low 44°.
Pressure30.27 inHg
Wind3.7 mph E
Humidity63%
Visibility6.2 mi
Dew point53°
Fri, 2367° / 47°0
67 °
Brown Deer, Friday, 23 October
Mostly clear. High 67°, low 47°.
Pressure30.33 inHg
Wind4 mph SE
Humidity73%
Visibility6.2 mi
Dew point55°
Sat, 2467° / 51°0
67 °
Brown Deer, Saturday, 24 October
Overcast. High 67°, low 51°.
Pressure30.36 inHg
Wind7.5 mph S
Humidity56%
Visibility6.2 mi
Dew point49°
Sun, 2570° / 54°0
70 °
Brown Deer, Sunday, 25 October
Overcast. High 70°, low 54°.
Pressure30.36 inHg
Wind5.3 mph SW
Humidity55%
Visibility6.2 mi
Dew point50°
Mon, 2665° / 50°0
65 °
Brown Deer, Monday, 26 October
Overcast. High 65°, low 50°.
Pressure30.27 inHg
Wind5.4 mph S
Humidity66%
Visibility—
Dew point51°
Tue, 2758° / 47°0.28
58 °
Brown Deer, Tuesday, 27 October
Light rain. High 58°, low 47°.
Pressure30.27 inHg
Wind9.9 mph E
Humidity91%
Visibility—
Dew point46°
Wed, 2852° / 44°0.61
52 °
Brown Deer, Wednesday, 28 October
Rain. High 52°, low 44°.
Pressure29.97 inHg
Wind15.3 mph N
Humidity95%
Visibility—
Dew point50°
Thu, 2946° / 38°0
46 °
Brown Deer, Thursday, 29 October
Partly cloudy. High 46°, low 38°.
Pressure30.27 inHg
Wind14.8 mph NW
Humidity46%
Visibility—
Dew point25°
Fri, 3050° / 33°0
50 °
Brown Deer, Friday, 30 October
Clear. High 50°, low 33°.
Pressure30.15 inHg
Wind10.4 mph SW
Humidity40%
Visibility—
Dew point24°
Sat, 3160° / 44°0.01
60 °
Brown Deer, Saturday, 31 October
Light rain. High 60°, low 44°.
Pressure29.97 inHg
Wind13.4 mph SW
Humidity65%
Visibility—
Dew point44°
Sun, 0163° / 51°0
63 °
Brown Deer, Sunday, 1 November
Overcast. High 63°, low 51°.
Pressure30.21 inHg
Wind5.9 mph SW
Humidity68%
Visibility—
Dew point51°
Mon, 0256° / 53°0.84
56 °
Brown Deer, Monday, 2 November
Rain. High 56°, low 53°.
Pressure29.97 inHg
Wind13.8 mph NE
Humidity94%
Visibility—
Dew point52°
Tue, 0353° / 47°1.37
53 °
Brown Deer, Tuesday, 3 November
Rain. High 53°, low 47°.
Pressure29.97 inHg
Wind26 mph NE
Humidity92%
Visibility—
Dew point48°
Wed, 0448° / 43°0
48 °
Brown Deer, Wednesday, 4 November
Mostly clear. High 48°, low 43°.
Pressure30.39 inHg
Wind17.8 mph NE
Humidity52%
Visibility—
Dew point30°
Thu, 0549° / 44°0
49 °
Brown Deer, Thursday, 5 November
Overcast. High 49°, low 44°.
Pressure30.12 inHg
Wind7.6 mph NE
Humidity62%
Visibility—
Dew point36°
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.