Monthly outlook for Germantown, WI: average high 57.2°, average low 40.2°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 October (69.8°), the coolest 28 October (23.8°).
57.2°/40.2°
Average high / low
+1.8°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
59.1°
55.1°
+2.2°
29 October – 7 November
54°
51.1°
+1.6°
8 November – 17 November
at normal
45.7°
—
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 (7 mi).
Tue, 2069° / 44°0
69 °
Germantown, Tuesday, 20 October
Clear. High 69°, low 44°.
Pressure30.39 inHg
Wind4.5 mph S
Humidity56%
Visibility6.2 mi
Dew point47°
Wed, 2170° / 45°0
70 °
Germantown, Wednesday, 21 October
Clear. High 70°, low 45°.
Pressure30.24 inHg
Wind6.1 mph SW
Humidity54%
Visibility6.2 mi
Dew point47°
Thu, 2263° / 48°0
63 °
Germantown, Thursday, 22 October
Overcast. High 63°, low 48°.
Pressure30.33 inHg
Wind7 mph NE
Humidity68%
Visibility6.2 mi
Dew point51°
Fri, 2360° / 41°0
60 °
Germantown, Friday, 23 October
Clear. High 60°, low 41°.
Pressure30.39 inHg
Wind6.6 mph SE
Humidity68%
Visibility6.2 mi
Dew point46°
Sat, 2462° / 45°0
62 °
Germantown, Saturday, 24 October
Overcast. High 62°, low 45°.
Pressure30.36 inHg
Wind9.6 mph S
Humidity56%
Visibility—
Dew point43°
Sun, 2564° / 51°0
64 °
Germantown, Sunday, 25 October
Overcast. High 64°, low 51°.
Pressure30.33 inHg
Wind9.8 mph SW
Humidity54%
Visibility—
Dew point45°
Mon, 2654° / 42°0
54 °
Germantown, Monday, 26 October
Overcast. High 54°, low 42°.
Pressure30.33 inHg
Wind9.8 mph NW
Humidity30%
Visibility—
Dew point21°
Tue, 2744° / 31°0
44 °
Germantown, Tuesday, 27 October
Overcast. High 44°, low 31°.
Pressure30.27 inHg
Wind16.7 mph NW
Humidity32%
Visibility—
Dew point15°
Wed, 2839° / 24°0
39 °
Germantown, Wednesday, 28 October
Clear. High 39°, low 24°.
Pressure30.42 inHg
Wind11.7 mph W
Humidity33%
Visibility—
Dew point10°
Thu, 2947° / 27°0
47 °
Germantown, Thursday, 29 October
Clear. High 47°, low 27°.
Pressure30.18 inHg
Wind11.9 mph W
Humidity25%
Visibility—
Dew point10°
Fri, 3054° / 31°0
54 °
Germantown, Friday, 30 October
Clear. High 54°, low 31°.
Pressure30.06 inHg
Wind11.5 mph SW
Humidity43%
Visibility—
Dew point28°
Sat, 3159° / 39°0
59 °
Germantown, Saturday, 31 October
Overcast. High 59°, low 39°.
Pressure30.15 inHg
Wind8.1 mph S
Humidity40%
Visibility—
Dew point31°
Sun, 0158° / 46°0.03
58 °
Germantown, Sunday, 1 November
Light rain. High 58°, low 46°.
Pressure30.09 inHg
Wind8.7 mph SW
Humidity49%
Visibility—
Dew point35°
Mon, 0253° / 48°0.11
53 °
Germantown, Monday, 2 November
Light rain. High 53°, low 48°.
Pressure29.94 inHg
Wind10.6 mph NW
Humidity85%
Visibility—
Dew point48°
Tue, 0353° / 41°0
53 °
Germantown, Tuesday, 3 November
Overcast. High 53°, low 41°.
Pressure29.94 inHg
Wind13.6 mph NW
Humidity67%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0450° / 41°0.09
50 °
Germantown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2022)
Record low15° (1991)
Thu, 0550° / 40°0.1
50 °
Germantown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1978)
Record low21° (1991)
Fri, 0649° / 38°0.09
49 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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 °
Germantown, 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)
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 Germantown, 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 Germantown, 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.