Monthly outlook for Winchester, WI: average high 58.8°, average low 43.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (82.2°), the coolest 18 October (26.7°).
58.8°/43.1°
Average high / low
+2.2°
Above normal
0 / 5
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
61.8°
56°
+3.2°
21 October – 30 October
53.8°
52.1°
+1°
31 October – 9 November
at normal
47.5°
—
October records over 66 years
83.5°1 October 2023All-time high
23.9°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Menasha (12 mi).
Mon, 1282° / 61°0
82 °
Winchester, Monday, 12 October
Mostly clear. High 82°, low 61°.
Pressure29.74 inHg
Wind7.9 mph SW
Humidity60%
Visibility6.2 mi
Dew point60°
Tue, 1370° / 57°0
70 °
Winchester, Tuesday, 13 October
Overcast. High 70°, low 57°.
Pressure29.80 inHg
Wind13.1 mph NW
Humidity70%
Visibility6.2 mi
Dew point55°
Wed, 1463° / 52°0
63 °
Winchester, Wednesday, 14 October
Overcast. High 63°, low 52°.
Pressure30.12 inHg
Wind7.9 mph N
Humidity56%
Visibility6.2 mi
Dew point45°
Thu, 1560° / 45°0
60 °
Winchester, Thursday, 15 October
Overcast. High 60°, low 45°.
Pressure30.36 inHg
Wind7.5 mph SW
Humidity56%
Visibility—
Dew point41°
Fri, 1653° / 37°0.01
53 °
Winchester, Friday, 16 October
Light rain. High 53°, low 37°.
Pressure30.33 inHg
Wind21.5 mph N
Humidity49%
Visibility—
Dew point33°
Sat, 1743° / 30°0
43 °
Winchester, Saturday, 17 October
Overcast. High 43°, low 30°.
Pressure30.50 inHg
Wind18.6 mph N
Humidity36%
Visibility—
Dew point15°
Sun, 1848° / 27°0
48 °
Winchester, Sunday, 18 October
Overcast. High 48°, low 27°.
Pressure30.50 inHg
Wind14.8 mph SW
Humidity29%
Visibility—
Dew point13°
Mon, 1957° / 37°0
57 °
Winchester, Monday, 19 October
Clear. High 57°, low 37°.
Pressure30.33 inHg
Wind13.8 mph SW
Humidity37%
Visibility—
Dew point27°
Tue, 2062° / 39°0
62 °
Winchester, Tuesday, 20 October
Partly cloudy. High 62°, low 39°.
Pressure30.24 inHg
Wind11 mph SW
Humidity39%
Visibility—
Dew point32°
Wed, 2164° / 46°0
64 °
Winchester, Wednesday, 21 October
Overcast. High 64°, low 46°.
Pressure29.88 inHg
Wind18 mph SW
Humidity43%
Visibility—
Dew point37°
Thu, 2254° / 46°0
54 °
Winchester, Thursday, 22 October
Overcast. High 54°, low 46°.
Pressure30.12 inHg
Wind13 mph NW
Humidity51%
Visibility—
Dew point36°
Fri, 2350° / 42°0
50 °
Winchester, Friday, 23 October
Overcast. High 50°, low 42°.
Pressure30.30 inHg
Wind8.9 mph NW
Humidity46%
Visibility—
Dew point30°
Sat, 2451° / 36°0
51 °
Winchester, Saturday, 24 October
Overcast. High 51°, low 36°.
Pressure30.30 inHg
Wind6.5 mph NW
Humidity56%
Visibility—
Dew point34°
Sun, 2549° / 34°0
49 °
Winchester, Sunday, 25 October
Overcast. High 49°, low 34°.
Pressure30.33 inHg
Wind7.1 mph N
Humidity45%
Visibility—
Dew point26°
Mon, 2654° / 41°0.01
54 °
Winchester, Monday, 26 October
Light rain. High 54°, low 41°.
Pressure29.97 inHg
Wind10.6 mph SE
Humidity83%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2752° / 41°0.07
52 °
Winchester, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.07 in
Chance of precipitation17%
Record high66° (2014)
Record low24° (2020)
Wed, 2851° / 40°0.07
51 °
Winchester, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.07 in
Chance of precipitation23%
Record high63° (2024)
Record low28° (1967)
Thu, 2950° / 40°0.06
50 °
Winchester, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.06 in
Chance of precipitation23%
Record high77° (2024)
Record low26° (1988)
Fri, 3052° / 41°0.09
52 °
Winchester, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2024)
Record low24° (1988)
Sat, 3151° / 40°0.11
51 °
Winchester, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.11 in
Chance of precipitation37%
Record high66° (1971)
Record low28° (1996)
Sun, 0149° / 39°0.17
49 °
Winchester, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.17 in
Chance of precipitation32%
Record high65° (2022)
Record low24° (2019)
Mon, 0248° / 38°0.12
48 °
Winchester, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.12 in
Chance of precipitation28%
Record high66° (1961)
Record low20° (1991)
Tue, 0348° / 38°0.05
48 °
Winchester, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (2022)
Record low18° (1991)
Wed, 0447° / 38°0.08
47 °
Winchester, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high67° (2024)
Record low17° (1991)
Thu, 0548° / 38°0.09
48 °
Winchester, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high65° (2020)
Record low20° (1991)
Fri, 0647° / 37°0.09
47 °
Winchester, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high66° (2020)
Record low15° (1991)
Sat, 0746° / 36°0.03
46 °
Winchester, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high65° (2020)
Record low10° (1991)
Sun, 0846° / 36°0.05
46 °
Winchester, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.05 in
Chance of precipitation27%
Record high67° (2020)
Record low12° (1991)
Mon, 0946° / 36°0.09
46 °
Winchester, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.09 in
Chance of precipitation37%
Record high69° (2020)
Record low17° (2017)
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 Winchester, 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 Winchester, 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.