As of 02:39 CDT

Weather in Winnebago, IL

41°Current weather

Winnebago, Wednesday, 21 October, 02:39

Clear. Feels like 41°. High 71°, low 41°.

Pressure30.27 inHg
Wind0 mph N
Humidity93%
Visibility6.2 mi
Dew point39°

Monthly outlook for Winnebago, IL: average high 58.3°, average low 41.5°. That is 1.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 22 October (73.5°), the coolest 28 October (31.7°).

58.3°/41.5°
Average high / low
+1.9°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October61.7°56.4°+2.9°
31 October – 9 November52.7°51.6°+0.6°
10 November – 19 Novemberat normal46.1°—

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 (9 mi).

Thu, 2274° / 45°0Clear
74 °Clear

Winnebago, Thursday, 22 October

Clear. High 74°, low 45°.

Pressure30.27 inHg
Wind1.8 mph SE
Humidity63%
Visibility6.2 mi
Dew point54°
Fri, 2369° / 54°0Clear
69 °Clear

Winnebago, Friday, 23 October

Clear. High 69°, low 54°.

Pressure30.33 inHg
Wind5.7 mph SE
Humidity73%
Visibility6.2 mi
Dew point55°
Sat, 2468° / 51°0Overcast
68 °Overcast

Winnebago, Saturday, 24 October

Overcast. High 68°, low 51°.

Pressure30.33 inHg
Wind9.8 mph S
Humidity60%
Visibility6.2 mi
Dew point50°
Sun, 2571° / 53°0Overcast
71 °Overcast

Winnebago, Sunday, 25 October

Overcast. High 71°, low 53°.

Pressure30.33 inHg
Wind7.8 mph S
Humidity54%
Visibility—
Dew point50°
Mon, 2667° / 40°0.26Rain
67 °Rain

Winnebago, Monday, 26 October

Rain. High 67°, low 40°.

Pressure30.18 inHg
Wind15.6 mph N
Humidity60%
Visibility—
Dew point51°
Tue, 2746° / 35°0.06Light rain
46 °Light rain

Winnebago, Tuesday, 27 October

Light rain. High 46°, low 35°.

Pressure30.42 inHg
Wind14.3 mph N
Humidity49%
Visibility—
Dew point26°
Wed, 2848° / 32°0Clear
48 °Clear

Winnebago, Wednesday, 28 October

Clear. High 48°, low 32°.

Pressure30.33 inHg
Wind7.4 mph W
Humidity51%
Visibility—
Dew point28°
Thu, 2951° / 35°0Clear
51 °Clear

Winnebago, Thursday, 29 October

Clear. High 51°, low 35°.

Pressure30.21 inHg
Wind7.9 mph W
Humidity46%
Visibility—
Dew point28°
Fri, 3053° / 34°0Clear
53 °Clear

Winnebago, Friday, 30 October

Clear. High 53°, low 34°.

Pressure30.24 inHg
Wind8.2 mph SE
Humidity42%
Visibility—
Dew point26°
Sat, 3158° / 40°0Clear
58 °Clear

Winnebago, Saturday, 31 October

Clear. High 58°, low 40°.

Pressure29.97 inHg
Wind17.7 mph S
Humidity41%
Visibility—
Dew point31°
Sun, 0154° / 50°0.02Light rain
54 °Light rain

Winnebago, Sunday, 1 November

Light rain. High 54°, low 50°.

Pressure29.94 inHg
Wind12.3 mph SW
Humidity75%
Visibility—
Dew point44°
Mon, 0256° / 42°0Clear
56 °Clear

Winnebago, Monday, 2 November

Clear. High 56°, low 42°.

Pressure30.15 inHg
Wind13.7 mph NW
Humidity38%
Visibility—
Dew point30°
Tue, 0347° / 35°0Overcast
47 °Overcast

Winnebago, Tuesday, 3 November

Overcast. High 47°, low 35°.

Pressure30.36 inHg
Wind8.1 mph NW
Humidity44%
Visibility—
Dew point25°
Wed, 0447° / 42°0Overcast
47 °Overcast

Winnebago, Wednesday, 4 November

Overcast. High 47°, low 42°.

Pressure30.18 inHg
Wind8.9 mph E
Humidity60%
Visibility—
Dew point33°
Thu, 0553° / 38°0Partly cloudy
53 °Partly cloudy

Winnebago, Thursday, 5 November

Partly cloudy. High 53°, low 38°.

Pressure30.39 inHg
Wind8.8 mph SE
Humidity45%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0651° / 37°0.09Climate normal
51 °Climate normal

Winnebago, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1975)
Record low21° (1991)
Sat, 0750° / 36°0.03Climate normal
50 °Climate normal

Winnebago, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05Climate normal
50 °Climate normal

Winnebago, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (2020)
Record low13° (1991)
Mon, 0950° / 37°0.11Climate normal
50 °Climate normal

Winnebago, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (1991)
Tue, 1049° / 35°0.11Climate normal
49 °Climate normal

Winnebago, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 33°0.06Climate normal
46 °Climate normal

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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

Winnebago, 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)

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 Winnebago, 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 Winnebago, 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.