Monthly outlook for Big Bay, MI: average high 52°, average low 40.5°. That is 1.4° above the climate normal for October. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 8 days and 2.0 inches. The warmest day looks like 20 October (66.5°), the coolest 28 October (33.9°).
52°/40.5°
Average high / low
+1.4°
Above normal
0 / 8
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
54.7°
50.7°
+2.2°
29 October – 7 November
47.6°
46.7°
+0.5°
8 November – 17 November
at normal
41.2°
—
October records over 66 years
85.5°2 October 2023All-time high
21.9°27 October 2020All-time low
Tue, 2067° / 36°0
67 °
Big Bay, Tuesday, 20 October
Clear. High 67°, low 36°.
Pressure30.39 inHg
Wind6.2 mph SE
Humidity57%
Visibility6.2 mi
Dew point41°
Wed, 2161° / 42°0.02
61 °
Big Bay, Wednesday, 21 October
Light rain. High 61°, low 42°.
Pressure30.15 inHg
Wind13.1 mph W
Humidity62%
Visibility6.2 mi
Dew point47°
Thu, 2255° / 47°0
55 °
Big Bay, Thursday, 22 October
Clear. High 55°, low 47°.
Pressure30.42 inHg
Wind1.7 mph SE
Humidity82%
Visibility6.2 mi
Dew point48°
Fri, 2361° / 48°0
61 °
Big Bay, Friday, 23 October
Clear. High 61°, low 48°.
Pressure30.39 inHg
Wind8.3 mph SE
Humidity67%
Visibility6.2 mi
Dew point44°
Sat, 2461° / 50°0
61 °
Big Bay, Saturday, 24 October
Overcast. High 61°, low 50°.
Pressure30.30 inHg
Wind10 mph S
Humidity61%
Visibility—
Dew point44°
Sun, 2560° / 50°0.03
60 °
Big Bay, Sunday, 25 October
Light rain. High 60°, low 50°.
Pressure30.06 inHg
Wind17.7 mph W
Humidity34%
Visibility—
Dew point31°
Mon, 2644° / 40°0
44 °
Big Bay, Monday, 26 October
Overcast. High 44°, low 40°.
Pressure30.27 inHg
Wind21.1 mph W
Humidity51%
Visibility—
Dew point26°
Tue, 2740° / 34°0
40 °
Big Bay, Tuesday, 27 October
Overcast. High 40°, low 34°.
Pressure30.45 inHg
Wind14.9 mph NW
Humidity46%
Visibility—
Dew point17°
Wed, 2840° / 34°0
40 °
Big Bay, Wednesday, 28 October
Overcast. High 40°, low 34°.
Pressure30.36 inHg
Wind17.5 mph NW
Humidity52%
Visibility—
Dew point23°
Thu, 2947° / 38°0
47 °
Big Bay, Thursday, 29 October
Overcast. High 47°, low 38°.
Pressure30.21 inHg
Wind18.5 mph W
Humidity40%
Visibility—
Dew point22°
Fri, 3047° / 39°0.03
47 °
Big Bay, Friday, 30 October
Light rain. High 47°, low 39°.
Pressure29.97 inHg
Wind13.6 mph SW
Humidity41%
Visibility—
Dew point24°
Sat, 3156° / 41°0
56 °
Big Bay, Saturday, 31 October
Overcast. High 56°, low 41°.
Pressure29.83 inHg
Wind7.9 mph W
Humidity49%
Visibility—
Dew point35°
Sun, 0148° / 38°0
48 °
Big Bay, Sunday, 1 November
Partly cloudy. High 48°, low 38°.
Pressure30.21 inHg
Wind14.4 mph N
Humidity58%
Visibility—
Dew point28°
Mon, 0242° / 37°0
42 °
Big Bay, Monday, 2 November
Overcast. High 42°, low 37°.
Pressure30.39 inHg
Wind9.8 mph E
Humidity58%
Visibility—
Dew point28°
Tue, 0346° / 35°0
46 °
Big Bay, Tuesday, 3 November
Overcast. High 46°, low 35°.
Pressure30.15 inHg
Wind10.7 mph S
Humidity40%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0446° / 38°0.1
46 °
Big Bay, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.1 in
Chance of precipitation48%
Record high67° (2008)
Record low25° (1991)
Thu, 0545° / 38°0.13
45 °
Big Bay, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low38°
Average precipitation0.13 in
Chance of precipitation48%
Record high64° (2015)
Record low20° (1991)
Fri, 0645° / 37°0.09
45 °
Big Bay, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.09 in
Chance of precipitation43%
Record high73° (2020)
Record low19° (1991)
Sat, 0745° / 37°0.06
45 °
Big Bay, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.06 in
Chance of precipitation43%
Record high69° (2020)
Record low19° (1991)
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)
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.