Monthly outlook for Belvidere, IL: average high 50.8°, average low 36.1°. That is 2.2° 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 17 November (61.8°), the coolest 14 November (25.7°).
50.8°/36.1°
Average high / low
+2.2°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
47.9°
47.8°
+0.1°
16 November – 25 November
55.7°
44.2°
+6.4°
26 November – 5 December
at normal
38.5°
—
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).
Sat, 0747° / 27°0
47 °
Belvidere, Saturday, 7 November
Overcast. High 47°, low 27°.
Pressure30.18 inHg
Wind5.6 mph W
Humidity57%
Visibility6.2 mi
Dew point32°
Sun, 0857° / 39°0
57 °
Belvidere, Sunday, 8 November
Clear. High 57°, low 39°.
Pressure30.00 inHg
Wind10.5 mph W
Humidity60%
Visibility6.2 mi
Dew point43°
Mon, 0956° / 36°0
56 °
Belvidere, Monday, 9 November
Partly cloudy. High 56°, low 36°.
Pressure30.12 inHg
Wind6.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point40°
Tue, 1058° / 43°0
58 °
Belvidere, Tuesday, 10 November
Clear. High 58°, low 43°.
Pressure30.03 inHg
Wind4.7 mph W
Humidity63%
Visibility6.2 mi
Dew point44°
Wed, 1151° / 41°0
51 °
Belvidere, Wednesday, 11 November
Overcast. High 51°, low 41°.
Pressure29.94 inHg
Wind4.8 mph NE
Humidity69%
Visibility—
Dew point39°
Thu, 1243° / 34°0.17
43 °
Belvidere, Thursday, 12 November
Light rain. High 43°, low 34°.
Pressure30.00 inHg
Wind14.5 mph NE
Humidity79%
Visibility—
Dew point36°
Fri, 1338° / 29°0
38 °
Belvidere, Friday, 13 November
Overcast. High 38°, low 29°.
Pressure30.18 inHg
Wind13.2 mph N
Humidity61%
Visibility—
Dew point24°
Sat, 1439° / 26°0
39 °
Belvidere, Saturday, 14 November
Partly cloudy. High 39°, low 26°.
Pressure30.24 inHg
Wind8.9 mph N
Humidity45%
Visibility—
Dew point17°
Sun, 1542° / 27°0
42 °
Belvidere, Sunday, 15 November
Partly cloudy. High 42°, low 27°.
Pressure30.21 inHg
Wind10.5 mph SW
Humidity44%
Visibility—
Dew point20°
Mon, 1656° / 38°0
56 °
Belvidere, Monday, 16 November
Overcast. High 56°, low 38°.
Pressure30.06 inHg
Wind11.2 mph SW
Humidity64%
Visibility—
Dew point39°
Tue, 1762° / 46°0
62 °
Belvidere, Tuesday, 17 November
Clear. High 62°, low 46°.
Pressure29.97 inHg
Wind10.8 mph SW
Humidity69%
Visibility—
Dew point48°
Wed, 1861° / 52°0
61 °
Belvidere, Wednesday, 18 November
Overcast. High 61°, low 52°.
Pressure29.94 inHg
Wind16 mph S
Humidity74%
Visibility—
Dew point48°
Thu, 1961° / 38°0.04
61 °
Belvidere, Thursday, 19 November
Light rain. High 61°, low 38°.
Pressure30.12 inHg
Wind20.7 mph NW
Humidity64%
Visibility—
Dew point36°
Fri, 2048° / 34°0
48 °
Belvidere, Friday, 20 November
Overcast. High 48°, low 34°.
Pressure30.39 inHg
Wind4.6 mph SW
Humidity52%
Visibility—
Dew point28°
Sat, 2147° / 36°0
47 °
Belvidere, Saturday, 21 November
Overcast. High 47°, low 36°.
Pressure30.42 inHg
Wind7.4 mph NE
Humidity58%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2243° / 30°0.03
43 °
Belvidere, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2010)
Record low2° (2015)
Mon, 2343° / 31°0.07
43 °
Belvidere, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2003)
Record low11° (1970)
Tue, 2442° / 29°0.07
42 °
Belvidere, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high63° (1966)
Record low10° (1985)
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)
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.