Monthly outlook for Saint Charles, OH: average high 60.1°, average low 46.2°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 29 October (76.4°), the coolest 8 November (33.8°).
60.1°/46.2°
Average high / low
+2°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
66°
58.2°
+4.3°
8 November – 17 November
50.2°
52.8°
-1.4°
18 November – 27 November
at normal
50.1°
—
October records over 66 years
91.4°2 October 2019All-time high
25.5°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Northbrook (13 mi).
Fri, 3069° / 46°0
69 °
Saint Charles, Friday, 30 October
Partly cloudy. High 69°, low 46°.
Pressure30.33 inHg
Wind7.4 mph NE
Humidity49%
Visibility6.2 mi
Dew point43°
Sat, 3167° / 51°0
67 °
Saint Charles, Saturday, 31 October
Overcast. High 67°, low 51°.
Pressure30.39 inHg
Wind9.1 mph E
Humidity52%
Visibility6.2 mi
Dew point42°
Sun, 0169° / 54°0
69 °
Saint Charles, Sunday, 1 November
Overcast. High 69°, low 54°.
Pressure30.33 inHg
Wind2.6 mph SE
Humidity59%
Visibility6.2 mi
Dew point48°
Mon, 0266° / 50°0
66 °
Saint Charles, Monday, 2 November
Overcast. High 66°, low 50°.
Pressure30.21 inHg
Wind10.6 mph S
Humidity65%
Visibility—
Dew point49°
Tue, 0366° / 59°0.02
66 °
Saint Charles, Tuesday, 3 November
Light rain. High 66°, low 59°.
Pressure29.97 inHg
Wind14.3 mph S
Humidity85%
Visibility—
Dew point59°
Wed, 0470° / 58°0.07
70 °
Saint Charles, Wednesday, 4 November
Light rain. High 70°, low 58°.
Pressure29.88 inHg
Wind12.4 mph SE
Humidity75%
Visibility—
Dew point58°
Thu, 0566° / 58°0.69
66 °
Saint Charles, Thursday, 5 November
Rain. High 66°, low 58°.
Pressure29.65 inHg
Wind9.1 mph S
Humidity77%
Visibility—
Dew point58°
Fri, 0658° / 51°0.07
58 °
Saint Charles, Friday, 6 November
Light rain. High 58°, low 51°.
Pressure29.71 inHg
Wind11.1 mph NW
Humidity92%
Visibility—
Dew point55°
Sat, 0751° / 40°0.01
51 °
Saint Charles, Saturday, 7 November
Light rain. High 51°, low 40°.
Pressure30.12 inHg
Wind14.3 mph N
Humidity51%
Visibility—
Dew point33°
Sun, 0850° / 34°0
50 °
Saint Charles, Sunday, 8 November
Partly cloudy. High 50°, low 34°.
Pressure30.18 inHg
Wind7.9 mph N
Humidity44%
Visibility—
Dew point26°
Mon, 0955° / 34°0
55 °
Saint Charles, Monday, 9 November
Clear. High 55°, low 34°.
Pressure30.00 inHg
Wind5.9 mph S
Humidity33%
Visibility—
Dew point22°
Tue, 1046° / 42°0.2
46 °
Saint Charles, Tuesday, 10 November
Light rain. High 46°, low 42°.
Pressure29.62 inHg
Wind19.3 mph W
Humidity88%
Visibility—
Dew point40°
Wed, 1153° / 38°0
53 °
Saint Charles, Wednesday, 11 November
Mostly clear. High 53°, low 38°.
Pressure29.77 inHg
Wind17.5 mph W
Humidity39%
Visibility—
Dew point26°
Thu, 1250° / 39°0.01
50 °
Saint Charles, Thursday, 12 November
Light rain. High 50°, low 39°.
Pressure29.83 inHg
Wind12.9 mph W
Humidity43%
Visibility—
Dew point27°
Fri, 1348° / 35°0
48 °
Saint Charles, Friday, 13 November
Partly cloudy. High 48°, low 35°.
Pressure30.00 inHg
Wind10.6 mph W
Humidity56%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1452° / 37°0.07
52 °
Saint Charles, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (2011)
Record low19° (1986)
Sun, 1551° / 38°0.16
51 °
Saint Charles, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.16 in
Chance of precipitation35%
Record high71° (1971)
Record low22° (1969)
Mon, 1651° / 37°0.09
51 °
Saint Charles, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1987)
Record low25° (1967)
Tue, 1751° / 37°0.13
51 °
Saint Charles, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation27%
Record high70° (1971)
Record low18° (2014)
Wed, 1852° / 38°0.1
52 °
Saint Charles, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation27%
Record high73° (2016)
Record low10° (2014)
Thu, 1952° / 38°0.11
52 °
Saint Charles, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (1985)
Record low7° (2014)
Fri, 2051° / 37°0.1
51 °
Saint Charles, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (1985)
Record low13° (1984)
Sat, 2149° / 37°0.1
49 °
Saint Charles, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.1 in
Chance of precipitation33%
Record high67° (1979)
Record low15° (2014)
Sun, 2249° / 35°0.08
49 °
Saint Charles, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high69° (2010)
Record low17° (1964)
Mon, 2349° / 35°0.08
49 °
Saint Charles, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high70° (1999)
Record low17° (1970)
Tue, 2449° / 34°0.14
49 °
Saint Charles, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.14 in
Chance of precipitation37%
Record high65° (2001)
Record low15° (1970)
Wed, 2550° / 35°0.17
50 °
Saint Charles, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.17 in
Chance of precipitation42%
Record high66° (1987)
Record low18° (2005)
Thu, 2650° / 36°0.14
50 °
Saint Charles, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation42%
Record high64° (1965)
Record low19° (1977)
Fri, 2749° / 37°0.2
49 °
Saint Charles, Friday, 27 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.2 in
Chance of precipitation48%
Record high72° (1990)
Record low22° (1977)
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 Saint Charles, OH 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 Saint Charles, OH 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.