Monthly outlook for Herscher, IL: average high 53.7°, average low 39.9°. That is 4° above the climate normal for November. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (64.6°), the coolest 16 November (28.7°).
53.7°/39.9°
Average high / low
+4°
Above normal
5 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
55.4°
47.9°
+4.1°
25 November – 4 December
51.1°
42.8°
+4.6°
5 December – 14 December
at normal
38.2°
—
November records over 66 years
77.2°1 November 2016All-time high
5°22 November 2015All-time low
Climate normals and records are computed from the nearest reference point — Cabery (7 mi).
Mon, 1653° / 29°0
53 °
Herscher, Monday, 16 November
Clear. High 53°, low 29°.
Pressure30.53 inHg
Wind6.4 mph SW
Humidity50%
Visibility6.2 mi
Dew point33°
Tue, 1755° / 35°0
55 °
Herscher, Tuesday, 17 November
Clear. High 55°, low 35°.
Pressure30.50 inHg
Wind7.9 mph S
Humidity53%
Visibility6.2 mi
Dew point37°
Wed, 1859° / 39°0
59 °
Herscher, Wednesday, 18 November
Overcast. High 59°, low 39°.
Pressure30.36 inHg
Wind12.5 mph S
Humidity48%
Visibility6.2 mi
Dew point38°
Thu, 1962° / 46°0
62 °
Herscher, Thursday, 19 November
Clear. High 62°, low 46°.
Pressure30.24 inHg
Wind14.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point47°
Fri, 2060° / 41°0
60 °
Herscher, Friday, 20 November
Overcast. High 60°, low 41°.
Pressure30.27 inHg
Wind9.4 mph S
Humidity76%
Visibility—
Dew point45°
Sat, 2165° / 51°0.02
65 °
Herscher, Saturday, 21 November
Light rain. High 65°, low 51°.
Pressure29.94 inHg
Wind17.5 mph S
Humidity34%
Visibility—
Dew point33°
Sun, 2253° / 43°0
53 °
Herscher, Sunday, 22 November
Mostly clear. High 53°, low 43°.
Pressure30.12 inHg
Wind11.5 mph NW
Humidity46%
Visibility—
Dew point31°
Mon, 2348° / 38°0
48 °
Herscher, Monday, 23 November
Clear. High 48°, low 38°.
Pressure30.33 inHg
Wind11.5 mph NE
Humidity49%
Visibility—
Dew point28°
Tue, 2448° / 35°0
48 °
Herscher, Tuesday, 24 November
Overcast. High 48°, low 35°.
Pressure30.24 inHg
Wind11.9 mph E
Humidity50%
Visibility—
Dew point28°
Wed, 2554° / 46°0.27
54 °
Herscher, Wednesday, 25 November
Rain. High 54°, low 46°.
Pressure29.94 inHg
Wind16.2 mph S
Humidity81%
Visibility—
Dew point47°
Thu, 2657° / 50°0.74
57 °
Herscher, Thursday, 26 November
Rain. High 57°, low 50°.
Pressure29.53 inHg
Wind24.2 mph SE
Humidity94%
Visibility—
Dew point51°
Fri, 2754° / 41°0.46
54 °
Herscher, Friday, 27 November
Rain. High 54°, low 41°.
Pressure29.00 inHg
Wind25.5 mph SW
Humidity87%
Visibility—
Dew point43°
Sat, 2850° / 40°0
50 °
Herscher, Saturday, 28 November
Mostly clear. High 50°, low 40°.
Pressure29.74 inHg
Wind24.5 mph SW
Humidity47%
Visibility—
Dew point28°
Sun, 2949° / 40°0.07
49 °
Herscher, Sunday, 29 November
Light rain. High 49°, low 40°.
Pressure30.06 inHg
Wind16.3 mph E
Humidity55%
Visibility—
Dew point32°
Mon, 3043° / 35°0.69
43 °
Herscher, Monday, 30 November
Rain. High 43°, low 35°.
Pressure29.80 inHg
Wind21.1 mph N
Humidity90%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0141° / 28°0.15
41 °
Herscher, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.15 in
Chance of precipitation40%
Record high66° (1970)
Record low12° (1985)
Wed, 0242° / 28°0.07
42 °
Herscher, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.07 in
Chance of precipitation32%
Record high71° (1982)
Record low8° (1976)
Thu, 0341° / 28°0.09
41 °
Herscher, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation33%
Record high70° (2012)
Record low7° (1976)
Fri, 0440° / 27°0.07
40 °
Herscher, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (1998)
Record low0° (1991)
Sat, 0540° / 26°0.07
40 °
Herscher, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (2001)
Record low0° (2025)
Sun, 0638° / 26°0.06
38 °
Herscher, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1980)
Record low-2° (1964)
Mon, 0737° / 25°0.12
37 °
Herscher, Monday, 7 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.12 in
Chance of precipitation32%
Record high60° (1980)
Record low-5° (1977)
Tue, 0838° / 25°0.07
38 °
Herscher, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.07 in
Chance of precipitation25%
Record high65° (1991)
Record low1° (2006)
Wed, 0938° / 24°0.07
38 °
Herscher, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.07 in
Chance of precipitation37%
Record high55° (1990)
Record low-6° (1977)
Thu, 1038° / 24°0.08
38 °
Herscher, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.08 in
Chance of precipitation23%
Record high62° (1971)
Record low-8° (1977)
Fri, 1137° / 24°0.11
37 °
Herscher, Friday, 11 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.11 in
Chance of precipitation28%
Record high60° (2021)
Record low-15° (1972)
Sat, 1238° / 24°0.08
38 °
Herscher, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.08 in
Chance of precipitation30%
Record high68° (2015)
Record low-8° (2000)
Sun, 1338° / 24°0.06
38 °
Herscher, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation30%
Record high62° (2015)
Record low-15° (2000)
Mon, 1438° / 25°0.11
38 °
Herscher, Monday, 14 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.11 in
Chance of precipitation35%
Record high64° (1975)
Record low-5° (1985)
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 Herscher, IL 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 Herscher, IL 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.