Monthly outlook for Belvidere, IL: average high 50°, average low 37°. That is 2.6° above the climate normal for November. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 18 November (61.1°), the coolest 23 November (28.3°).
50°/37°
Average high / low
+2.6°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 November – 18 November
51.1°
46.5°
+2.5°
19 November – 28 November
48.2°
42.3°
+3.3°
29 November – 8 December
at normal
36.6°
—
November records over 66 years
73.4°2 November 1961All-time high
-1.7°26 November 1977All-time low
Climate normals and records are computed from the nearest reference point — Rockford (10 mi).
Tue, 1060° / 41°0
60 °
Belvidere, Tuesday, 10 November
Clear. High 60°, low 41°.
Pressure30.06 inHg
Wind4.9 mph NW
Humidity60%
Visibility6.2 mi
Dew point42°
Wed, 1152° / 39°0.05
52 °
Belvidere, Wednesday, 11 November
Light rain. High 52°, low 39°.
Pressure29.88 inHg
Wind7.9 mph E
Humidity75%
Visibility6.2 mi
Dew point44°
Thu, 1243° / 36°0
43 °
Belvidere, Thursday, 12 November
Mostly clear. High 43°, low 36°.
Pressure30.03 inHg
Wind14.4 mph N
Humidity61%
Visibility6.2 mi
Dew point26°
Fri, 1340° / 32°0
40 °
Belvidere, Friday, 13 November
Overcast. High 40°, low 32°.
Pressure30.09 inHg
Wind12.6 mph N
Humidity68%
Visibility—
Dew point29°
Sat, 1443° / 29°0
43 °
Belvidere, Saturday, 14 November
Mostly clear. High 43°, low 29°.
Pressure30.24 inHg
Wind8.5 mph N
Humidity66%
Visibility—
Dew point30°
Sun, 1548° / 31°0
48 °
Belvidere, Sunday, 15 November
Overcast. High 48°, low 31°.
Pressure30.09 inHg
Wind7.3 mph E
Humidity44%
Visibility—
Dew point23°
Mon, 1649° / 42°0
49 °
Belvidere, Monday, 16 November
Overcast. High 49°, low 42°.
Pressure30.03 inHg
Wind10.2 mph E
Humidity68%
Visibility—
Dew point38°
Tue, 1757° / 46°0
57 °
Belvidere, Tuesday, 17 November
Overcast. High 57°, low 46°.
Pressure30.21 inHg
Wind8.8 mph E
Humidity65%
Visibility—
Dew point43°
Wed, 1861° / 45°0
61 °
Belvidere, Wednesday, 18 November
Overcast. High 61°, low 45°.
Pressure30.30 inHg
Wind8.1 mph SE
Humidity68%
Visibility—
Dew point47°
Thu, 1959° / 49°0.02
59 °
Belvidere, Thursday, 19 November
Light rain. High 59°, low 49°.
Pressure30.15 inHg
Wind17.3 mph S
Humidity71%
Visibility—
Dew point48°
Fri, 2058° / 41°0.09
58 °
Belvidere, Friday, 20 November
Light rain. High 58°, low 41°.
Pressure29.97 inHg
Wind23 mph SW
Humidity54%
Visibility—
Dew point32°
Sat, 2144° / 34°0
44 °
Belvidere, Saturday, 21 November
Partly cloudy. High 44°, low 34°.
Pressure30.09 inHg
Wind11.9 mph NW
Humidity61%
Visibility—
Dew point28°
Sun, 2242° / 34°0
42 °
Belvidere, Sunday, 22 November
Overcast. High 42°, low 34°.
Pressure30.09 inHg
Wind7 mph N
Humidity65%
Visibility—
Dew point29°
Mon, 2341° / 28°0
41 °
Belvidere, Monday, 23 November
Clear. High 41°, low 28°.
Pressure30.15 inHg
Wind6.3 mph NW
Humidity49%
Visibility—
Dew point21°
Tue, 2445° / 29°0
45 °
Belvidere, Tuesday, 24 November
Mostly clear. High 45°, low 29°.
Pressure30.09 inHg
Wind10.8 mph SW
Humidity52%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2542° / 30°0.07
42 °
Belvidere, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high59° (1966)
Record low9° (1977)
Thu, 2642° / 29°0.11
42 °
Belvidere, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation42%
Record high64° (1990)
Record low-2° (1977)
Fri, 2740° / 28°0.18
40 °
Belvidere, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.18 in
Chance of precipitation48%
Record high65° (1990)
Record low10° (1977)
Sat, 2838° / 26°0.11
38 °
Belvidere, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.11 in
Chance of precipitation32%
Record high63° (1998)
Record low2° (2018)
Sun, 2939° / 27°0.06
39 °
Belvidere, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1998)
Record low4° (1977)
Mon, 3039° / 27°0.06
39 °
Belvidere, Monday, 30 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1998)
Record low8° (1964)
Tue, 0137° / 26°0.11
37 °
Belvidere, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.11 in
Chance of precipitation42%
Record high60° (1970)
Record low4° (1971)
Wed, 0238° / 25°0.06
38 °
Belvidere, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (1982)
Record low0° (1971)
Thu, 0337° / 25°0.09
37 °
Belvidere, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (2012)
Record low-8° (1985)
Fri, 0437° / 25°0.06
37 °
Belvidere, Friday, 4 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation20%
Record high64° (1998)
Record low-2° (1991)
Sat, 0537° / 24°0.07
37 °
Belvidere, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.07 in
Chance of precipitation35%
Record high65° (2001)
Record low-3° (1991)
Sun, 0635° / 22°0.05
35 °
Belvidere, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.05 in
Chance of precipitation30%
Record high60° (1998)
Record low-9° (2007)
Mon, 0733° / 22°0.09
33 °
Belvidere, Monday, 7 December
Climate normal for this date — 60-year average.
Average high33°
Average low22°
Average precipitation0.09 in
Chance of precipitation27%
Record high54° (1980)
Record low-5° (2008)
Tue, 0834° / 22°0.07
34 °
Belvidere, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.07 in
Chance of precipitation32%
Record high57° (1991)
Record low1° (2005)
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 Belvidere, 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 Belvidere, 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.