As of 09:45 CDT

Weather in Portage, IL

58°Current weather

Portage, Wednesday, 28 October, 09:45

Clear. Feels like 57°. High 73°, low 52°.

Pressure30.15 inHg
Wind8 mph S
Humidity84%
Visibility6.2 mi
Dew point53°

Monthly outlook for Portage, IL: average high 55.8°, average low 44.5°. That is 3.2° above the climate normal for October. Precipitation is expected on 7 days (about 3.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (73.4°), the coolest 12 November (29.1°).

55.8°/44.5°
Average high / low
+3.2°
Above normal
7 / 4
Wet days / normal
3.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
28 October – 6 November61.4°51.9°+5.3°
7 November – 16 November46.5°46.1°+0.2°
17 November – 26 Novemberat normal42.4°—

October records over 66 years

85.6°3 October 2025All-time high
20.7°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Benton (13 mi).

Thu, 2968° / 48°0Clear
68 °Clear

Portage, Thursday, 29 October

Clear. High 68°, low 48°.

Pressure30.15 inHg
Wind7.9 mph N
Humidity57%
Visibility6.2 mi
Dew point47°
Fri, 3058° / 44°0.24Rain
58 °Rain

Portage, Friday, 30 October

Rain. High 58°, low 44°.

Pressure30.30 inHg
Wind6.8 mph SE
Humidity55%
Visibility6.2 mi
Dew point42°
Sat, 3161° / 52°0.74Heavy rain
61 °Heavy rain

Portage, Saturday, 31 October

Heavy rain. High 61°, low 52°.

Pressure30.27 inHg
Wind5.7 mph E
Humidity81%
Visibility6.2 mi
Dew point53°
Sun, 0165° / 49°0Overcast
65 °Overcast

Portage, Sunday, 1 November

Overcast. High 65°, low 49°.

Pressure30.30 inHg
Wind7.6 mph E
Humidity75%
Visibility—
Dew point52°
Mon, 0265° / 54°0.03Light rain
65 °Light rain

Portage, Monday, 2 November

Light rain. High 65°, low 54°.

Pressure30.06 inHg
Wind13.6 mph SE
Humidity77%
Visibility—
Dew point55°
Tue, 0360° / 56°1Rain
60 °Rain

Portage, Tuesday, 3 November

Rain. High 60°, low 56°.

Pressure29.88 inHg
Wind17.3 mph E
Humidity95%
Visibility—
Dew point55°
Wed, 0458° / 56°0.4Rain
58 °Rain

Portage, Wednesday, 4 November

Rain. High 58°, low 56°.

Pressure29.77 inHg
Wind12.5 mph E
Humidity96%
Visibility—
Dew point56°
Thu, 0556° / 51°0.06Light rain
56 °Light rain

Portage, Thursday, 5 November

Light rain. High 56°, low 51°.

Pressure29.74 inHg
Wind13 mph N
Humidity87%
Visibility—
Dew point52°
Fri, 0650° / 38°0Overcast
50 °Overcast

Portage, Friday, 6 November

Overcast. High 50°, low 38°.

Pressure30.03 inHg
Wind10.2 mph N
Humidity47%
Visibility—
Dew point29°
Sat, 0747° / 37°0Overcast
47 °Overcast

Portage, Saturday, 7 November

Overcast. High 47°, low 37°.

Pressure30.33 inHg
Wind7.1 mph NE
Humidity53%
Visibility—
Dew point29°
Sun, 0849° / 32°0Partly cloudy
49 °Partly cloudy

Portage, Sunday, 8 November

Partly cloudy. High 49°, low 32°.

Pressure30.36 inHg
Wind8.1 mph S
Humidity56%
Visibility—
Dew point31°
Mon, 0947° / 39°0.15Light rain
47 °Light rain

Portage, Monday, 9 November

Light rain. High 47°, low 39°.

Pressure30.12 inHg
Wind13.9 mph SE
Humidity62%
Visibility—
Dew point33°
Tue, 1046° / 41°0.65Rain
46 °Rain

Portage, Tuesday, 10 November

Rain. High 46°, low 41°.

Pressure29.91 inHg
Wind21.3 mph NE
Humidity95%
Visibility—
Dew point45°
Wed, 1145° / 34°0.01Light rain
45 °Light rain

Portage, Wednesday, 11 November

Light rain. High 45°, low 34°.

Pressure30.18 inHg
Wind19.1 mph NE
Humidity61%
Visibility—
Dew point30°
Thu, 1244° / 29°0Mostly clear
44 °Mostly clear

Portage, Thursday, 12 November

Mostly clear. High 44°, low 29°.

Pressure30.15 inHg
Wind12.5 mph NE
Humidity63%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1344° / 31°0.05Climate normal
44 °Climate normal

Portage, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (1999)
Record low6° (1986)
Sat, 1445° / 32°0.04Climate normal
45 °Climate normal

Portage, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation28%
Record high65° (2001)
Record low14° (1986)
Sun, 1545° / 33°0.05Climate normal
45 °Climate normal

Portage, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high66° (2001)
Record low15° (2019)
Mon, 1645° / 32°0.06Climate normal
45 °Climate normal

Portage, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (1988)
Record low19° (1989)
Tue, 1745° / 33°0.1Climate normal
45 °Climate normal

Portage, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.1 in
Chance of precipitation18%
Record high69° (2016)
Record low13° (2005)
Wed, 1845° / 32°0.09Climate normal
45 °Climate normal

Portage, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (1999)
Record low10° (2014)
Thu, 1945° / 32°0.06Climate normal
45 °Climate normal

Portage, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high63° (2020)
Record low11° (1986)
Fri, 2043° / 31°0.09Climate normal
43 °Climate normal

Portage, Friday, 20 November

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation32%
Record high62° (2003)
Record low13° (2022)
Sat, 2142° / 29°0.09Climate normal
42 °Climate normal

Portage, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation22%
Record high65° (1990)
Record low6° (1964)
Sun, 2242° / 29°0.03Climate normal
42 °Climate normal

Portage, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high60° (2012)
Record low3° (2015)
Mon, 2342° / 29°0.1Climate normal
42 °Climate normal

Portage, Monday, 23 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation32%
Record high60° (1966)
Record low9° (1970)
Tue, 2440° / 28°0.06Climate normal
40 °Climate normal

Portage, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high60° (2017)
Record low6° (1985)
Wed, 2540° / 29°0.06Climate normal
40 °Climate normal

Portage, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high40°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high55° (1998)
Record low5° (1977)
Thu, 2640° / 27°0.09Climate normal
40 °Climate normal

Portage, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation33%
Record high63° (1990)
Record low-5° (1977)

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 Portage, 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 Portage, 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.