As of 16:50 CDT

Weather in Belvidere, IL

61°Current weather

Belvidere, Monday, 26 October, 16:50

Overcast. Feels like 60°. High 62°, low 48°.

Pressure30.30 inHg
Wind10 mph E
Humidity64%
Visibility6.2 mi
Dew point49°

Monthly outlook for Belvidere, IL: average high 58.3°, average low 46°. That is 3.2° above the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (70.1°), the coolest 6 November (35°).

58.3°/46°
Average high / low
+3.2°
Above normal
4 / 4
Wet days / normal
2.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
26 October – 4 November60.8°54.1°+3.7°
5 November – 14 November54.2°48.3°+3.3°
15 November – 24 Novemberat normal44.5°—

October records over 66 years

88°3 October 2025All-time high
22.1°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Rockford (10 mi).

Tue, 2768° / 48°0Overcast
68 °Overcast

Belvidere, Tuesday, 27 October

Overcast. High 68°, low 48°.

Pressure30.24 inHg
Wind5.7 mph SE
Humidity78%
Visibility6.2 mi
Dew point53°
Wed, 2870° / 51°0Clear
70 °Clear

Belvidere, Wednesday, 28 October

Clear. High 70°, low 51°.

Pressure30.18 inHg
Wind6.8 mph S
Humidity63%
Visibility6.2 mi
Dew point54°
Thu, 2965° / 52°0.03Light rain
65 °Light rain

Belvidere, Thursday, 29 October

Light rain. High 65°, low 52°.

Pressure30.06 inHg
Wind6.2 mph SW
Humidity82%
Visibility6.2 mi
Dew point57°
Fri, 3065° / 43°0Overcast
65 °Overcast

Belvidere, Friday, 30 October

Overcast. High 65°, low 43°.

Pressure30.27 inHg
Wind3.9 mph SE
Humidity61%
Visibility6.2 mi
Dew point46°
Sat, 3163° / 53°0.64Rain
63 °Rain

Belvidere, Saturday, 31 October

Rain. High 63°, low 53°.

Pressure30.15 inHg
Wind6.5 mph SE
Humidity84%
Visibility—
Dew point57°
Sun, 0160° / 55°0.03Light rain
60 °Light rain

Belvidere, Sunday, 1 November

Light rain. High 60°, low 55°.

Pressure29.97 inHg
Wind7.9 mph N
Humidity87%
Visibility—
Dew point55°
Mon, 0256° / 53°0Overcast
56 °Overcast

Belvidere, Monday, 2 November

Overcast. High 56°, low 53°.

Pressure29.91 inHg
Wind13.4 mph E
Humidity86%
Visibility—
Dew point52°
Tue, 0354° / 42°1.24Rain
54 °Rain

Belvidere, Tuesday, 3 November

Rain. High 54°, low 42°.

Pressure29.68 inHg
Wind29.6 mph E
Humidity88%
Visibility—
Dew point47°
Wed, 0444° / 40°0.43Rain
44 °Rain

Belvidere, Wednesday, 4 November

Rain. High 44°, low 40°.

Pressure30.00 inHg
Wind23.8 mph NE
Humidity92%
Visibility—
Dew point39°
Thu, 0552° / 39°0Overcast
52 °Overcast

Belvidere, Thursday, 5 November

Overcast. High 52°, low 39°.

Pressure30.06 inHg
Wind16.4 mph NE
Humidity67%
Visibility—
Dew point38°
Fri, 0652° / 35°0Clear
52 °Clear

Belvidere, Friday, 6 November

Clear. High 52°, low 35°.

Pressure30.18 inHg
Wind6.2 mph N
Humidity41%
Visibility—
Dew point26°
Sat, 0755° / 37°0Mostly clear
55 °Mostly clear

Belvidere, Saturday, 7 November

Mostly clear. High 55°, low 37°.

Pressure30.12 inHg
Wind14.9 mph S
Humidity50%
Visibility—
Dew point33°
Sun, 0857° / 49°0Overcast
57 °Overcast

Belvidere, Sunday, 8 November

Overcast. High 57°, low 49°.

Pressure29.83 inHg
Wind16.5 mph S
Humidity62%
Visibility—
Dew point43°
Mon, 0960° / 47°0Overcast
60 °Overcast

Belvidere, Monday, 9 November

Overcast. High 60°, low 47°.

Pressure29.77 inHg
Wind7.2 mph SW
Humidity50%
Visibility—
Dew point39°
Tue, 1050° / 43°0.11Light rain
50 °Light rain

Belvidere, Tuesday, 10 November

Light rain. High 50°, low 43°.

Pressure29.68 inHg
Wind14.8 mph NW
Humidity73%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1146° / 33°0.06Climate normal
46 °Climate normal

Belvidere, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1964)
Record low13° (2019)
Thu, 1245° / 32°0.07Climate normal
45 °Climate normal

Belvidere, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 32°0.04Climate normal
45 °Climate normal

Belvidere, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (1999)
Record low8° (1986)
Sat, 1446° / 32°0.06Climate normal
46 °Climate normal

Belvidere, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (1971)
Record low10° (1995)
Sun, 1546° / 33°0.07Climate normal
46 °Climate normal

Belvidere, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.05Climate normal
46 °Climate normal

Belvidere, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low19° (2019)
Tue, 1746° / 33°0.11Climate normal
46 °Climate normal

Belvidere, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation27%
Record high71° (2016)
Record low15° (2005)
Wed, 1846° / 33°0.09Climate normal
46 °Climate normal

Belvidere, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (1999)
Record low11° (2014)
Thu, 1946° / 33°0.06Climate normal
46 °Climate normal

Belvidere, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high64° (1983)
Record low16° (1986)
Fri, 2044° / 32°0.07Climate normal
44 °Climate normal

Belvidere, Friday, 20 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation33%
Record high62° (1982)
Record low13° (2022)
Sat, 2143° / 30°0.09Climate normal
43 °Climate normal

Belvidere, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation23%
Record high65° (1990)
Record low8° (1964)
Sun, 2243° / 30°0.03Climate normal
43 °Climate normal

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°0.07Climate normal
43 °Climate normal

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°0.07Climate normal
42 °Climate normal

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)

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.