Monthly outlook for McHarg, MI: average high 54.8°, average low 39.2°. That is 2.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 25 October (68.3°), the coolest 3 November (31.8°).
54.8°/39.2°
Average high / low
+2.6°
Above normal
2 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
57°
51.1°
+3.3°
1 November – 10 November
51°
47.2°
+2.1°
11 November – 20 November
at normal
42.5°
—
October records over 66 years
82°5 October 2025All-time high
28.9°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Alpena (9 mi).
Fri, 2362° / 36°0
62 °
McHarg, Friday, 23 October
Clear. High 62°, low 36°.
Pressure30.39 inHg
Wind6.1 mph SE
Humidity69%
Visibility3.0 mi
Dew point47°
Sat, 2464° / 44°0
64 °
McHarg, Saturday, 24 October
Clear. High 64°, low 44°.
Pressure30.45 inHg
Wind5.1 mph S
Humidity77%
Visibility6.2 mi
Dew point49°
Sun, 2568° / 48°0
68 °
McHarg, Sunday, 25 October
Overcast. High 68°, low 48°.
Pressure30.36 inHg
Wind7.8 mph SW
Humidity62%
Visibility6.2 mi
Dew point50°
Mon, 2654° / 40°0.01
54 °
McHarg, Monday, 26 October
Light rain. High 54°, low 40°.
Pressure30.45 inHg
Wind8.5 mph N
Humidity49%
Visibility—
Dew point34°
Tue, 2750° / 38°0
50 °
McHarg, Tuesday, 27 October
Overcast. High 50°, low 38°.
Pressure30.47 inHg
Wind7.4 mph E
Humidity57%
Visibility—
Dew point34°
Wed, 2848° / 40°0.07
48 °
McHarg, Wednesday, 28 October
Light rain. High 48°, low 40°.
Pressure30.18 inHg
Wind5.5 mph SE
Humidity87%
Visibility—
Dew point40°
Thu, 2954° / 39°0
54 °
McHarg, Thursday, 29 October
Clear. High 54°, low 39°.
Pressure30.12 inHg
Wind8.5 mph W
Humidity43%
Visibility—
Dew point30°
Fri, 3052° / 37°0.02
52 °
McHarg, Friday, 30 October
Light rain. High 52°, low 37°.
Pressure30.09 inHg
Wind13.4 mph SE
Humidity58%
Visibility—
Dew point35°
Sat, 3157° / 50°0.28
57 °
McHarg, Saturday, 31 October
Rain. High 57°, low 50°.
Pressure29.65 inHg
Wind10.4 mph S
Humidity92%
Visibility—
Dew point54°
Sun, 0159° / 44°0
59 °
McHarg, Sunday, 1 November
Mostly clear. High 59°, low 44°.
Pressure29.74 inHg
Wind16.5 mph W
Humidity39%
Visibility—
Dew point33°
Mon, 0250° / 36°0
50 °
McHarg, Monday, 2 November
Clear. High 50°, low 36°.
Pressure30.18 inHg
Wind9.8 mph NW
Humidity46%
Visibility—
Dew point28°
Tue, 0351° / 32°0
51 °
McHarg, Tuesday, 3 November
Clear. High 51°, low 32°.
Pressure30.39 inHg
Wind6.7 mph NW
Humidity44%
Visibility—
Dew point27°
Wed, 0444° / 33°0
44 °
McHarg, Wednesday, 4 November
Clear. High 44°, low 33°.
Pressure30.62 inHg
Wind7.6 mph NE
Humidity44%
Visibility—
Dew point22°
Thu, 0549° / 35°0
49 °
McHarg, Thursday, 5 November
Overcast. High 49°, low 35°.
Pressure30.56 inHg
Wind10.4 mph SE
Humidity44%
Visibility—
Dew point26°
Fri, 0653° / 35°0
53 °
McHarg, Friday, 6 November
Partly cloudy. High 53°, low 35°.
Pressure30.24 inHg
Wind6.5 mph S
Humidity36%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0746° / 38°0.05
46 °
McHarg, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2020)
Record low23° (1991)
Sun, 0846° / 38°0.05
46 °
McHarg, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.05 in
Chance of precipitation32%
Record high67° (2020)
Record low24° (1991)
Mon, 0946° / 38°0.09
46 °
McHarg, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.09 in
Chance of precipitation48%
Record high68° (2020)
Record low20° (2017)
Tue, 1045° / 37°0.11
45 °
McHarg, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high69° (2022)
Record low18° (2017)
Wed, 1143° / 36°0.09
43 °
McHarg, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low36°
Average precipitation0.09 in
Chance of precipitation47%
Record high63° (2022)
Record low21° (2017)
Thu, 1242° / 35°0.06
42 °
McHarg, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low35°
Average precipitation0.06 in
Chance of precipitation28%
Record high60° (1964)
Record low18° (2019)
Fri, 1342° / 34°0.06
42 °
McHarg, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low34°
Average precipitation0.06 in
Chance of precipitation33%
Record high56° (2005)
Record low17° (2019)
Sat, 1443° / 35°0.03
43 °
McHarg, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.03 in
Chance of precipitation22%
Record high59° (1994)
Record low20° (2018)
Sun, 1543° / 35°0.1
43 °
McHarg, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.1 in
Chance of precipitation37%
Record high60° (2001)
Record low22° (1967)
Mon, 1642° / 34°0.07
42 °
McHarg, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low34°
Average precipitation0.07 in
Chance of precipitation27%
Record high57° (2023)
Record low22° (2019)
Tue, 1742° / 35°0.05
42 °
McHarg, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low35°
Average precipitation0.05 in
Chance of precipitation27%
Record high58° (1987)
Record low22° (2014)
Wed, 1843° / 35°0.07
43 °
McHarg, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high59° (2016)
Record low20° (2018)
Thu, 1943° / 34°0.07
43 °
McHarg, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.07 in
Chance of precipitation42%
Record high58° (2016)
Record low18° (2014)
Fri, 2041° / 33°0.11
41 °
McHarg, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low33°
Average precipitation0.11 in
Chance of precipitation42%
Record high56° (1985)
Record low17° (2022)
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 McHarg, 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 McHarg, 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.