Monthly outlook for St. Charles, MI: average high 63.7°, average low 45.7°. That is 4.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 1 November (73.3°), the coolest 26 October (35.5°).
63.7°/45.7°
Average high / low
+4.9°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
61.2°
55.8°
+3°
28 October – 6 November
67.8°
52.3°
+8.6°
7 November – 16 November
at normal
46.4°
—
October records over 66 years
86°3 October 2025All-time high
21.4°29 October 1967All-time low
Climate normals and records are computed from the nearest reference point — Freeland (15 mi).
Mon, 1962° / 43°0
62 °
St. Charles, Monday, 19 October
Clear. High 62°, low 43°.
Pressure30.42 inHg
Wind5.4 mph SW
Humidity59%
Visibility6.2 mi
Dew point44°
Tue, 2064° / 42°0
64 °
St. Charles, Tuesday, 20 October
Clear. High 64°, low 42°.
Pressure30.45 inHg
Wind4.1 mph E
Humidity68%
Visibility6.2 mi
Dew point49°
Wed, 2164° / 41°0
64 °
St. Charles, Wednesday, 21 October
Clear. High 64°, low 41°.
Pressure30.33 inHg
Wind3 mph S
Humidity67%
Visibility6.2 mi
Dew point48°
Thu, 2259° / 45°0
59 °
St. Charles, Thursday, 22 October
Overcast. High 59°, low 45°.
Pressure30.30 inHg
Wind8.6 mph NE
Humidity64%
Visibility—
Dew point45°
Fri, 2356° / 40°0
56 °
St. Charles, Friday, 23 October
Clear. High 56°, low 40°.
Pressure30.47 inHg
Wind7.5 mph E
Humidity42%
Visibility—
Dew point31°
Sat, 2468° / 48°0
68 °
St. Charles, Saturday, 24 October
Overcast. High 68°, low 48°.
Pressure30.30 inHg
Wind15.4 mph S
Humidity43%
Visibility—
Dew point43°
Sun, 2563° / 41°0.02
63 °
St. Charles, Sunday, 25 October
Light rain. High 63°, low 41°.
Pressure30.27 inHg
Wind16.4 mph NW
Humidity32%
Visibility—
Dew point28°
Mon, 2655° / 36°0
55 °
St. Charles, Monday, 26 October
Partly cloudy. High 55°, low 36°.
Pressure30.33 inHg
Wind10.6 mph W
Humidity30%
Visibility—
Dew point20°
Tue, 2762° / 45°0
62 °
St. Charles, Tuesday, 27 October
Partly cloudy. High 62°, low 45°.
Pressure30.15 inHg
Wind9.5 mph W
Humidity41%
Visibility—
Dew point35°
Wed, 2865° / 44°0
65 °
St. Charles, Wednesday, 28 October
Overcast. High 65°, low 44°.
Pressure30.03 inHg
Wind11.6 mph S
Humidity49%
Visibility—
Dew point43°
Thu, 2966° / 52°0
66 °
St. Charles, Thursday, 29 October
Overcast. High 66°, low 52°.
Pressure29.71 inHg
Wind16.2 mph SW
Humidity56%
Visibility—
Dew point49°
Fri, 3069° / 46°0
69 °
St. Charles, Friday, 30 October
Clear. High 69°, low 46°.
Pressure29.77 inHg
Wind16.2 mph S
Humidity40%
Visibility—
Dew point39°
Sat, 3170° / 59°0.13
70 °
St. Charles, Saturday, 31 October
Light rain. High 70°, low 59°.
Pressure29.74 inHg
Wind19.8 mph SW
Humidity57%
Visibility—
Dew point52°
Sun, 0173° / 61°0.04
73 °
St. Charles, Sunday, 1 November
Light rain. High 73°, low 61°.
Pressure29.83 inHg
Wind20 mph W
Humidity40%
Visibility—
Dew point46°
Mon, 0263° / 50°0
63 °
St. Charles, Monday, 2 November
Partly cloudy. High 63°, low 50°.
Pressure30.24 inHg
Wind13.9 mph W
Humidity35%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0351° / 38°0.07
51 °
St. Charles, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation30%
Record high71° (1987)
Record low24° (1991)
Wed, 0451° / 38°0.06
51 °
St. Charles, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (2015)
Record low20° (1966)
Thu, 0551° / 38°0.11
51 °
St. Charles, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (1978)
Record low20° (1966)
Fri, 0651° / 37°0.1
51 °
St. Charles, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation35%
Record high70° (1975)
Record low24° (1991)
Sat, 0749° / 36°0.05
49 °
St. Charles, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2020)
Record low22° (1991)
Sun, 0849° / 36°0.04
49 °
St. Charles, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high71° (2020)
Record low17° (2019)
Mon, 0949° / 36°0.09
49 °
St. Charles, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation40%
Record high73° (2020)
Record low20° (1995)
Tue, 1048° / 35°0.1
48 °
St. Charles, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.1 in
Chance of precipitation33%
Record high73° (2020)
Record low16° (2017)
Wed, 1146° / 33°0.1
46 °
St. Charles, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2020)
Record low18° (2017)
Thu, 1245° / 32°0.05
45 °
St. Charles, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high65° (1964)
Record low10° (2019)
Fri, 1345° / 32°0.04
45 °
St. Charles, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (1989)
Record low6° (2019)
Sat, 1445° / 32°0.05
45 °
St. Charles, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high62° (1994)
Record low11° (1995)
Sun, 1545° / 33°0.09
45 °
St. Charles, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation33%
Record high64° (1990)
Record low18° (1967)
Mon, 1644° / 31°0.06
44 °
St. Charles, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high62° (1988)
Record low12° (2019)
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 St. Charles, 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 St. Charles, 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.