Monthly outlook for Big Flats, WI: average high 56.8°, average low 42.8°. That is 3.2° above the climate normal for October. Precipitation is expected on 7 days (about 1.6 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 21 October (70.6°), the coolest 31 October (31.1°).
56.8°/42.8°
Average high / low
+3.2°
Above normal
7 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
58.9°
52.6°
+3.5°
31 October – 9 November
53.4°
47.4°
+3.3°
10 November – 19 November
at normal
41.8°
—
October records over 66 years
85.5°1 October 2023All-time high
21.2°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Lake Camelot (7 mi).
Thu, 2270° / 42°0
70 °
Big Flats, Thursday, 22 October
Clear. High 70°, low 42°.
Pressure30.27 inHg
Wind3.5 mph SE
Humidity64%
Visibility6.2 mi
Dew point51°
Fri, 2367° / 51°0
67 °
Big Flats, Friday, 23 October
Overcast. High 67°, low 51°.
Pressure30.30 inHg
Wind6.4 mph SE
Humidity69%
Visibility6.2 mi
Dew point53°
Sat, 2467° / 54°0
67 °
Big Flats, Saturday, 24 October
Overcast. High 67°, low 54°.
Pressure30.27 inHg
Wind9.9 mph S
Humidity58%
Visibility6.2 mi
Dew point49°
Sun, 2569° / 55°0
69 °
Big Flats, Sunday, 25 October
Overcast. High 69°, low 55°.
Pressure30.30 inHg
Wind8.6 mph S
Humidity57%
Visibility—
Dew point50°
Mon, 2656° / 42°0.21
56 °
Big Flats, Monday, 26 October
Light rain. High 56°, low 42°.
Pressure30.33 inHg
Wind10 mph NE
Humidity96%
Visibility—
Dew point46°
Tue, 2749° / 38°0.1
49 °
Big Flats, Tuesday, 27 October
Light rain. High 49°, low 38°.
Pressure30.36 inHg
Wind9.7 mph NE
Humidity52%
Visibility—
Dew point29°
Wed, 2847° / 37°0.27
47 °
Big Flats, Wednesday, 28 October
Rain. High 47°, low 37°.
Pressure30.09 inHg
Wind7.9 mph S
Humidity91%
Visibility—
Dew point41°
Thu, 2947° / 38°0.1
47 °
Big Flats, Thursday, 29 October
Snow. High 47°, low 38°.
Pressure30.15 inHg
Wind17.8 mph NW
Humidity49%
Visibility—
Dew point26°
Fri, 3046° / 31°0
46 °
Big Flats, Friday, 30 October
Clear. High 46°, low 31°.
Pressure30.30 inHg
Wind8.8 mph NW
Humidity44%
Visibility—
Dew point23°
Sat, 3149° / 31°0
49 °
Big Flats, Saturday, 31 October
Overcast. High 49°, low 31°.
Pressure30.24 inHg
Wind13.6 mph S
Humidity44%
Visibility—
Dew point25°
Sun, 0144° / 40°0.15
44 °
Big Flats, Sunday, 1 November
Light rain. High 44°, low 40°.
Pressure30.00 inHg
Wind8.7 mph S
Humidity94%
Visibility—
Dew point41°
Mon, 0251° / 43°0
51 °
Big Flats, Monday, 2 November
Overcast. High 51°, low 43°.
Pressure30.03 inHg
Wind3.9 mph SE
Humidity80%
Visibility—
Dew point42°
Tue, 0355° / 44°0
55 °
Big Flats, Tuesday, 3 November
Overcast. High 55°, low 44°.
Pressure30.00 inHg
Wind10.3 mph E
Humidity72%
Visibility—
Dew point44°
Wed, 0457° / 47°0.4
57 °
Big Flats, Wednesday, 4 November
Rain. High 57°, low 47°.
Pressure29.77 inHg
Wind16.5 mph E
Humidity92%
Visibility—
Dew point52°
Thu, 0563° / 54°0.33
63 °
Big Flats, Thursday, 5 November
Rain. High 63°, low 54°.
Pressure29.71 inHg
Wind15.8 mph SW
Humidity54%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0647° / 34°0.07
47 °
Big Flats, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (2020)
Record low8° (1991)
Sat, 0746° / 34°0.03
46 °
Big Flats, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2020)
Record low-1° (1991)
Sun, 0846° / 33°0.04
46 °
Big Flats, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (2020)
Record low1° (1991)
Mon, 0945° / 33°0.08
45 °
Big Flats, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation35%
Record high70° (2020)
Record low16° (2017)
Tue, 1044° / 32°0.13
44 °
Big Flats, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.13 in
Chance of precipitation40%
Record high70° (2022)
Record low11° (2017)
Wed, 1142° / 30°0.07
42 °
Big Flats, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high65° (1964)
Record low11° (1986)
Thu, 1240° / 29°0.06
40 °
Big Flats, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high59° (1964)
Record low5° (2019)
Fri, 1341° / 29°0.05
41 °
Big Flats, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high65° (1999)
Record low4° (1986)
Sat, 1442° / 30°0.04
42 °
Big Flats, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high61° (1971)
Record low12° (2018)
Sun, 1542° / 31°0.04
42 °
Big Flats, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high65° (2001)
Record low13° (2021)
Mon, 1642° / 30°0.06
42 °
Big Flats, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (2023)
Record low16° (1989)
Tue, 1742° / 31°0.08
42 °
Big Flats, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high66° (2016)
Record low8° (2005)
Wed, 1842° / 30°0.07
42 °
Big Flats, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high61° (2001)
Record low7° (2014)
Thu, 1941° / 29°0.06
41 °
Big Flats, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (1975)
Record low10° (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 Big Flats, 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 Big Flats, 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.