Monthly outlook for Greendale, WI: average high 59°, average low 45.3°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 24 October (69.5°), the coolest 17 October (37.3°).
59°/45.3°
Average high / low
+2.1°
Above normal
2 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
61.8°
56.5°
+2.9°
26 October – 4 November
54.4°
52.4°
+1.1°
5 November – 14 November
at normal
47.3°
—
October records over 66 years
86.7°3 October 2025All-time high
26.1°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Milwaukee (9 mi).
Sat, 1754° / 37°0
54 °
Greendale, Saturday, 17 October
Clear. High 54°, low 37°.
Pressure30.50 inHg
Wind8.5 mph SW
Humidity46%
Visibility6.2 mi
Dew point29°
Sun, 1861° / 46°0
61 °
Greendale, Sunday, 18 October
Clear. High 61°, low 46°.
Pressure30.36 inHg
Wind13.9 mph SW
Humidity49%
Visibility6.2 mi
Dew point38°
Mon, 1964° / 42°0
64 °
Greendale, Monday, 19 October
Clear. High 64°, low 42°.
Pressure30.39 inHg
Wind4.2 mph SW
Humidity55%
Visibility6.2 mi
Dew point44°
Tue, 2062° / 40°0
62 °
Greendale, Tuesday, 20 October
Overcast. High 62°, low 40°.
Pressure30.39 inHg
Wind3.5 mph E
Humidity73%
Visibility6.2 mi
Dew point50°
Wed, 2167° / 46°0
67 °
Greendale, Wednesday, 21 October
Clear. High 67°, low 46°.
Pressure30.27 inHg
Wind5.7 mph SW
Humidity45%
Visibility—
Dew point42°
Thu, 2263° / 49°0.04
63 °
Greendale, Thursday, 22 October
Light rain. High 63°, low 49°.
Pressure30.21 inHg
Wind4.9 mph W
Humidity62%
Visibility—
Dew point49°
Fri, 2368° / 55°0
68 °
Greendale, Friday, 23 October
Partly cloudy. High 68°, low 55°.
Pressure30.24 inHg
Wind8 mph SE
Humidity44%
Visibility—
Dew point44°
Sat, 2470° / 55°0
70 °
Greendale, Saturday, 24 October
Partly cloudy. High 70°, low 55°.
Pressure30.15 inHg
Wind14.6 mph S
Humidity40%
Visibility—
Dew point42°
Sun, 2554° / 46°0
54 °
Greendale, Sunday, 25 October
Overcast. High 54°, low 46°.
Pressure30.36 inHg
Wind12.6 mph NE
Humidity51%
Visibility—
Dew point35°
Mon, 2653° / 47°0
53 °
Greendale, Monday, 26 October
Light rain. High 53°, low 47°.
Pressure30.33 inHg
Wind9.1 mph E
Humidity57%
Visibility—
Dew point38°
Tue, 2763° / 48°0
63 °
Greendale, Tuesday, 27 October
Overcast. High 63°, low 48°.
Pressure30.06 inHg
Wind12.3 mph W
Humidity66%
Visibility—
Dew point50°
Wed, 2852° / 40°0
52 °
Greendale, Wednesday, 28 October
Clear. High 52°, low 40°.
Pressure30.15 inHg
Wind10.5 mph NW
Humidity47%
Visibility—
Dew point31°
Thu, 2952° / 42°0.13
52 °
Greendale, Thursday, 29 October
Light rain. High 52°, low 42°.
Pressure30.00 inHg
Wind16.4 mph E
Humidity66%
Visibility—
Dew point40°
Fri, 3053° / 47°0.96
53 °
Greendale, Friday, 30 October
Rain. High 53°, low 47°.
Pressure29.53 inHg
Wind18.9 mph N
Humidity98%
Visibility—
Dew point52°
Sat, 3153° / 44°0
53 °
Greendale, Saturday, 31 October
Clear. High 53°, low 44°.
Pressure30.06 inHg
Wind15.8 mph NW
Humidity48%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0152° / 42°0.17
52 °
Greendale, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.17 in
Chance of precipitation42%
Record high69° (2022)
Record low19° (2019)
Mon, 0251° / 40°0.15
51 °
Greendale, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.15 in
Chance of precipitation37%
Record high68° (1961)
Record low23° (1991)
Tue, 0350° / 40°0.06
50 °
Greendale, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.06 in
Chance of precipitation23%
Record high70° (2022)
Record low19° (1991)
Wed, 0450° / 41°0.09
50 °
Greendale, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (2022)
Record low15° (1991)
Thu, 0550° / 40°0.11
50 °
Greendale, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high68° (1978)
Record low21° (1991)
Fri, 0650° / 38°0.09
50 °
Greendale, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2020)
Record low19° (1991)
Sat, 0749° / 38°0.04
49 °
Greendale, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2020)
Record low13° (1991)
Sun, 0849° / 38°0.04
49 °
Greendale, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2020)
Record low10° (2019)
Mon, 0949° / 38°0.11
49 °
Greendale, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.11 in
Chance of precipitation35%
Record high74° (2020)
Record low20° (2017)
Tue, 1048° / 37°0.11
48 °
Greendale, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.11 in
Chance of precipitation37%
Record high74° (2022)
Record low15° (2017)
Wed, 1146° / 35°0.07
46 °
Greendale, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high65° (1964)
Record low13° (2019)
Thu, 1244° / 34°0.06
44 °
Greendale, 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 low4° (2019)
Fri, 1344° / 33°0.05
44 °
Greendale, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (1999)
Record low7° (2019)
Sat, 1445° / 34°0.05
45 °
Greendale, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.05 in
Chance of precipitation28%
Record high64° (2025)
Record low13° (2019)
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 Greendale, 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 Greendale, 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.