As of 08:50 CDT

Weather in Portage, IL

60°Current weather

Portage, Thursday, 29 October, 08:50

Overcast. Feels like 60°. High 68°, low 51°.

Pressure30.09 inHg
Wind2 mph NW
Humidity85%
Visibility6.2 mi
Dew point56°

Monthly outlook for Portage, IL: average high 58.2°, average low 47.2°. That is 4.8° above the climate normal for October. Precipitation is expected on 10 days (about 2.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 3 November (69.2°), the coolest 7 November (32.2°).

58.2°/47.2°
Average high / low
+4.8°
Above normal
10 / 4
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
29 October – 7 November60.5°51.5°+5°
8 November – 17 November54.4°45.8°+4.8°
18 November – 27 Novemberat normal41.7°—

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).

Fri, 3061° / 45°0.33Rain
61 °Rain

Portage, Friday, 30 October

Rain. High 61°, low 45°.

Pressure30.36 inHg
Wind5.9 mph E
Humidity68%
Visibility6.2 mi
Dew point42°
Sat, 3162° / 51°0.47Heavy rain
62 °Heavy rain

Portage, Saturday, 31 October

Heavy rain. High 62°, low 51°.

Pressure30.30 inHg
Wind8.1 mph SE
Humidity75%
Visibility6.2 mi
Dew point51°
Sun, 0163° / 53°0.07Light rain
63 °Light rain

Portage, Sunday, 1 November

Light rain. High 63°, low 53°.

Pressure30.27 inHg
Wind6.2 mph SE
Humidity71%
Visibility6.2 mi
Dew point51°
Mon, 0261° / 56°0.13Light rain
61 °Light rain

Portage, Monday, 2 November

Light rain. High 61°, low 56°.

Pressure30.00 inHg
Wind15.7 mph S
Humidity88%
Visibility—
Dew point57°
Tue, 0369° / 62°0.25Light rain
69 °Light rain

Portage, Tuesday, 3 November

Light rain. High 69°, low 62°.

Pressure29.77 inHg
Wind16.9 mph S
Humidity78%
Visibility—
Dew point61°
Wed, 0463° / 61°0.3Light rain
63 °Light rain

Portage, Wednesday, 4 November

Light rain. High 63°, low 61°.

Pressure29.77 inHg
Wind10.7 mph SE
Humidity94%
Visibility—
Dew point61°
Thu, 0560° / 52°0.19Light rain
60 °Light rain

Portage, Thursday, 5 November

Light rain. High 60°, low 52°.

Pressure29.56 inHg
Wind13.4 mph N
Humidity95%
Visibility—
Dew point57°
Fri, 0650° / 38°0.07Light rain
50 °Light rain

Portage, Friday, 6 November

Light rain. High 50°, low 38°.

Pressure29.91 inHg
Wind15.7 mph N
Humidity61%
Visibility—
Dew point33°
Sat, 0748° / 32°0Overcast
48 °Overcast

Portage, Saturday, 7 November

Overcast. High 48°, low 32°.

Pressure30.27 inHg
Wind8.7 mph NE
Humidity48%
Visibility—
Dew point26°
Sun, 0848° / 35°0Overcast
48 °Overcast

Portage, Sunday, 8 November

Overcast. High 48°, low 35°.

Pressure30.39 inHg
Wind4.8 mph S
Humidity52%
Visibility—
Dew point29°
Mon, 0951° / 42°0Overcast
51 °Overcast

Portage, Monday, 9 November

Overcast. High 51°, low 42°.

Pressure30.27 inHg
Wind4.8 mph W
Humidity65%
Visibility—
Dew point38°
Tue, 1054° / 38°0Clear
54 °Clear

Portage, Tuesday, 10 November

Clear. High 54°, low 38°.

Pressure30.18 inHg
Wind7.9 mph W
Humidity61%
Visibility—
Dew point37°
Wed, 1158° / 41°0Clear
58 °Clear

Portage, Wednesday, 11 November

Clear. High 58°, low 41°.

Pressure30.06 inHg
Wind8.6 mph W
Humidity69%
Visibility—
Dew point45°
Thu, 1257° / 44°0Overcast
57 °Overcast

Portage, Thursday, 12 November

Overcast. High 57°, low 44°.

Pressure29.74 inHg
Wind17.2 mph SE
Humidity65%
Visibility—
Dew point42°
Fri, 1358° / 53°0.37Rain
58 °Rain

Portage, Friday, 13 November

Rain. High 58°, low 53°.

Pressure29.47 inHg
Wind15.8 mph S
Humidity83%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2738° / 27°0.13Climate normal
38 °Climate normal

Portage, Friday, 27 November

Climate normal for this date — 60-year average.

Average high38°
Average low27°
Average precipitation0.13 in
Chance of precipitation42%
Record high64° (1990)
Record low2° (1996)

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.