Monthly outlook for Plymouth, IL: average high 54°, average low 39.6°. That is 2.8° above the climate normal for November. Precipitation is expected on 7 days (about 3.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 19 November (68.4°), the coolest 15 November (27.9°).
54°/39.6°
Average high / low
+2.8°
Above normal
7 / 4
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
55.4°
50.2°
+2.9°
22 November – 1 December
51.7°
45.4°
+3.5°
2 December – 11 December
at normal
40.5°
—
November records over 66 years
77.5°1 November 2016All-time high
-1.1°8 November 1991All-time low
Climate normals and records are computed from the nearest reference point — Camden (12 mi).
Fri, 1343° / 37°0
43 °
Plymouth, Friday, 13 November
Overcast. High 43°, low 37°.
Pressure30.15 inHg
Wind11.1 mph N
Humidity61%
Visibility6.2 mi
Dew point23°
Sat, 1445° / 29°0
45 °
Plymouth, Saturday, 14 November
Clear. High 45°, low 29°.
Pressure30.36 inHg
Wind2 mph N
Humidity59%
Visibility6.2 mi
Dew point25°
Sun, 1548° / 28°0
48 °
Plymouth, Sunday, 15 November
Partly cloudy. High 48°, low 28°.
Pressure30.47 inHg
Wind0.5 mph SE
Humidity54%
Visibility6.2 mi
Dew point28°
Mon, 1652° / 29°0
52 °
Plymouth, Monday, 16 November
Clear. High 52°, low 29°.
Pressure30.50 inHg
Wind4.4 mph SW
Humidity48%
Visibility6.2 mi
Dew point30°
Tue, 1755° / 32°0
55 °
Plymouth, Tuesday, 17 November
Clear. High 55°, low 32°.
Pressure30.45 inHg
Wind6.3 mph S
Humidity46%
Visibility—
Dew point31°
Wed, 1864° / 40°0
64 °
Plymouth, Wednesday, 18 November
Partly cloudy. High 64°, low 40°.
Pressure30.24 inHg
Wind15.7 mph S
Humidity39%
Visibility—
Dew point33°
Thu, 1968° / 51°0.06
68 °
Plymouth, Thursday, 19 November
Light rain. High 68°, low 51°.
Pressure30.09 inHg
Wind19.8 mph SW
Humidity55%
Visibility—
Dew point47°
Fri, 2067° / 53°0.06
67 °
Plymouth, Friday, 20 November
Light rain. High 67°, low 53°.
Pressure30.15 inHg
Wind11.1 mph SW
Humidity68%
Visibility—
Dew point54°
Sat, 2167° / 57°0.08
67 °
Plymouth, Saturday, 21 November
Light rain. High 67°, low 57°.
Pressure30.09 inHg
Wind13.3 mph SW
Humidity72%
Visibility—
Dew point51°
Sun, 2262° / 57°0.61
62 °
Plymouth, Sunday, 22 November
Rain. High 62°, low 57°.
Pressure29.77 inHg
Wind19.4 mph S
Humidity72%
Visibility—
Dew point50°
Mon, 2360° / 53°1.24
60 °
Plymouth, Monday, 23 November
Rain. High 60°, low 53°.
Pressure29.62 inHg
Wind15.6 mph SW
Humidity87%
Visibility—
Dew point51°
Tue, 2458° / 36°0.09
58 °
Plymouth, Tuesday, 24 November
Snow. High 58°, low 36°.
Pressure29.41 inHg
Wind26.9 mph W
Humidity89%
Visibility—
Dew point40°
Wed, 2537° / 29°0
37 °
Plymouth, Wednesday, 25 November
Mostly clear. High 37°, low 29°.
Pressure30.30 inHg
Wind16.5 mph W
Humidity53%
Visibility—
Dew point20°
Thu, 2637° / 28°0
37 °
Plymouth, Thursday, 26 November
Overcast. High 37°, low 28°.
Pressure30.33 inHg
Wind15.1 mph E
Humidity54%
Visibility—
Dew point19°
Fri, 2756° / 37°1.04
56 °
Plymouth, Friday, 27 November
Snow. High 56°, low 37°.
Pressure29.65 inHg
Wind21.9 mph S
Humidity93%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2843° / 30°0.09
43 °
Plymouth, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation22%
Record high67° (1998)
Record low6° (1977)
Sun, 2944° / 31°0.08
44 °
Plymouth, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (1998)
Record low12° (1976)
Mon, 3044° / 30°0.09
44 °
Plymouth, Monday, 30 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation23%
Record high66° (1998)
Record low8° (1964)
Tue, 0142° / 29°0.11
42 °
Plymouth, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation38%
Record high63° (1970)
Record low6° (1985)
Wed, 0243° / 29°0.06
43 °
Plymouth, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1982)
Record low4° (1985)
Thu, 0343° / 29°0.08
43 °
Plymouth, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (2012)
Record low3° (1985)
Fri, 0441° / 29°0.06
41 °
Plymouth, Friday, 4 December
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1998)
Record low1° (1991)
Sat, 0542° / 28°0.07
42 °
Plymouth, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (2001)
Record low2° (2006)
Sun, 0640° / 27°0.07
40 °
Plymouth, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (1980)
Record low-3° (1964)
Mon, 0739° / 27°0.07
39 °
Plymouth, Monday, 7 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation18%
Record high60° (2023)
Record low-3° (1977)
Tue, 0839° / 26°0.05
39 °
Plymouth, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.05 in
Chance of precipitation27%
Record high67° (1991)
Record low-3° (2006)
Wed, 0939° / 26°0.08
39 °
Plymouth, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.08 in
Chance of precipitation32%
Record high58° (2021)
Record low-4° (1977)
Thu, 1039° / 25°0.09
39 °
Plymouth, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.09 in
Chance of precipitation18%
Record high61° (2021)
Record low-9° (1977)
Fri, 1139° / 24°0.1
39 °
Plymouth, Friday, 11 December
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.1 in
Chance of precipitation28%
Record high61° (2021)
Record low-15° (1972)
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 Plymouth, 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 Plymouth, 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.