Monthly outlook for Big Bay, MI: average high 55.9°, average low 46.2°. That is 4.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 23 October (66°), the coolest 30 October (37.3°).
55.9°/46.2°
Average high / low
+4.4°
Above normal
5 / 7
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
55.9°
49.3°
+3.6°
2 November – 11 November
55.8°
44.3°
+6.4°
12 November – 21 November
at normal
39.8°
—
October records over 66 years
85.5°2 October 2023All-time high
21.9°27 October 2020All-time low
Sat, 2466° / 50°0
66 °
Big Bay, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.21 inHg
Wind15.7 mph S
Humidity66%
Visibility6.2 mi
Dew point48°
Sun, 2560° / 51°0.02
60 °
Big Bay, Sunday, 25 October
Light rain. High 60°, low 51°.
Pressure30.36 inHg
Wind12.3 mph W
Humidity62%
Visibility6.2 mi
Dew point41°
Mon, 2652° / 45°0
52 °
Big Bay, Monday, 26 October
Overcast. High 52°, low 45°.
Pressure30.53 inHg
Wind8.2 mph N
Humidity63%
Visibility6.2 mi
Dew point33°
Tue, 2748° / 44°0
48 °
Big Bay, Tuesday, 27 October
Overcast. High 48°, low 44°.
Pressure30.42 inHg
Wind12.2 mph SE
Humidity59%
Visibility—
Dew point33°
Wed, 2859° / 46°0.43
59 °
Big Bay, Wednesday, 28 October
Rain. High 59°, low 46°.
Pressure29.91 inHg
Wind15.6 mph S
Humidity74%
Visibility—
Dew point50°
Thu, 2958° / 41°0.22
58 °
Big Bay, Thursday, 29 October
Rain. High 58°, low 41°.
Pressure29.94 inHg
Wind26.7 mph W
Humidity73%
Visibility—
Dew point38°
Fri, 3048° / 37°0
48 °
Big Bay, Friday, 30 October
Clear. High 48°, low 37°.
Pressure30.30 inHg
Wind9.8 mph W
Humidity44%
Visibility—
Dew point24°
Sat, 3150° / 39°0.01
50 °
Big Bay, Saturday, 31 October
Light rain. High 50°, low 39°.
Pressure30.27 inHg
Wind9.7 mph S
Humidity50%
Visibility—
Dew point29°
Sun, 0153° / 48°0.05
53 °
Big Bay, Sunday, 1 November
Light rain. High 53°, low 48°.
Pressure30.06 inHg
Wind8.7 mph S
Humidity84%
Visibility—
Dew point47°
Mon, 0259° / 47°0
59 °
Big Bay, Monday, 2 November
Clear. High 59°, low 47°.
Pressure30.00 inHg
Wind6.5 mph S
Humidity65%
Visibility—
Dew point46°
Tue, 0353° / 50°0.13
53 °
Big Bay, Tuesday, 3 November
Light rain. High 53°, low 50°.
Pressure29.91 inHg
Wind12.8 mph E
Humidity83%
Visibility—
Dew point48°
Wed, 0451° / 50°0.45
51 °
Big Bay, Wednesday, 4 November
Light rain. High 51°, low 50°.
Pressure29.77 inHg
Wind14.8 mph E
Humidity95%
Visibility—
Dew point49°
Thu, 0555° / 49°0.02
55 °
Big Bay, Thursday, 5 November
Light rain. High 55°, low 49°.
Pressure29.80 inHg
Wind9.2 mph W
Humidity81%
Visibility—
Dew point49°
Fri, 0659° / 47°0
59 °
Big Bay, Friday, 6 November
Overcast. High 59°, low 47°.
Pressure29.65 inHg
Wind13.3 mph W
Humidity62%
Visibility—
Dew point44°
Sat, 0757° / 49°0
57 °
Big Bay, Saturday, 7 November
Overcast. High 57°, low 49°.
Pressure29.50 inHg
Wind22.1 mph W
Humidity63%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0844° / 36°0.08
44 °
Big Bay, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low36°
Average precipitation0.08 in
Chance of precipitation43%
Record high68° (2020)
Record low19° (2019)
Mon, 0944° / 35°0.14
44 °
Big Bay, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.14 in
Chance of precipitation45%
Record high70° (2020)
Record low15° (2017)
Tue, 1042° / 35°0.19
42 °
Big Bay, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low35°
Average precipitation0.19 in
Chance of precipitation67%
Record high60° (2022)
Record low15° (2017)
Wed, 1140° / 33°0.13
40 °
Big Bay, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low33°
Average precipitation0.13 in
Chance of precipitation47%
Record high60° (2012)
Record low16° (2019)
Thu, 1240° / 32°0.15
40 °
Big Bay, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.15 in
Chance of precipitation48%
Record high55° (1964)
Record low13° (2019)
Fri, 1340° / 33°0.1
40 °
Big Bay, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low33°
Average precipitation0.1 in
Chance of precipitation52%
Record high62° (1999)
Record low14° (2019)
Sat, 1441° / 33°0.06
41 °
Big Bay, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low33°
Average precipitation0.06 in
Chance of precipitation38%
Record high61° (2001)
Record low16° (1986)
Sun, 1541° / 34°0.07
41 °
Big Bay, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high41°
Average low34°
Average precipitation0.07 in
Chance of precipitation42%
Record high59° (2001)
Record low20° (2019)
Mon, 1641° / 33°0.09
41 °
Big Bay, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low33°
Average precipitation0.09 in
Chance of precipitation38%
Record high62° (2023)
Record low18° (2019)
Tue, 1740° / 33°0.13
40 °
Big Bay, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low33°
Average precipitation0.13 in
Chance of precipitation47%
Record high61° (2001)
Record low17° (2014)
Wed, 1840° / 32°0.11
40 °
Big Bay, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.11 in
Chance of precipitation48%
Record high62° (2001)
Record low13° (2018)
Thu, 1940° / 32°0.11
40 °
Big Bay, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.11 in
Chance of precipitation62%
Record high54° (1975)
Record low13° (2014)
Fri, 2038° / 31°0.15
38 °
Big Bay, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low31°
Average precipitation0.15 in
Chance of precipitation53%
Record high55° (1982)
Record low13° (2018)
Sat, 2137° / 30°0.13
37 °
Big Bay, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low30°
Average precipitation0.13 in
Chance of precipitation48%
Record high58° (1990)
Record low13° (2018)
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 Bay, MI 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 Bay, MI 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.