As of 04:14 CDT

Weather in Portage, IL

60°Current weather

Portage, Saturday, 24 October, 04:14

Overcast. Feels like 58°. High 72°, low 56°.

Pressure30.30 inHg
Wind1 mph S
Humidity68%
Visibility6.2 mi
Dew point48°

Monthly outlook for Portage, IL: average high 58.8°, average low 46.9°. That is 3.6° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (73.5°), the coolest 7 November (25.6°).

58.8°/46.9°
Average high / low
+3.6°
Above normal
4 / 4
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
24 October – 2 November66.3°53.8°+7°
3 November – 12 November46.3°48.2°-1.1°
13 November – 22 Novemberat normal44°—

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).

Sun, 2574° / 53°0Overcast
74 °Overcast

Portage, Sunday, 25 October

Overcast. High 74°, low 53°.

Pressure30.36 inHg
Wind4.5 mph S
Humidity61%
Visibility6.2 mi
Dew point53°
Mon, 2666° / 52°0Overcast
66 °Overcast

Portage, Monday, 26 October

Overcast. High 66°, low 52°.

Pressure30.36 inHg
Wind7.6 mph E
Humidity76%
Visibility6.2 mi
Dew point54°
Tue, 2768° / 50°0Light rain
68 °Light rain

Portage, Tuesday, 27 October

Light rain. High 68°, low 50°.

Pressure30.21 inHg
Wind8.6 mph SE
Humidity71%
Visibility6.2 mi
Dew point53°
Wed, 2869° / 56°0Overcast
69 °Overcast

Portage, Wednesday, 28 October

Overcast. High 69°, low 56°.

Pressure30.12 inHg
Wind10.5 mph S
Humidity63%
Visibility—
Dew point52°
Thu, 2967° / 57°0.48Rain
67 °Rain

Portage, Thursday, 29 October

Rain. High 67°, low 57°.

Pressure30.15 inHg
Wind7.5 mph SW
Humidity79%
Visibility—
Dew point58°
Fri, 3061° / 57°0.01Light rain
61 °Light rain

Portage, Friday, 30 October

Light rain. High 61°, low 57°.

Pressure30.21 inHg
Wind10.3 mph E
Humidity89%
Visibility—
Dew point58°
Sat, 3161° / 57°0.53Rain
61 °Rain

Portage, Saturday, 31 October

Rain. High 61°, low 57°.

Pressure30.03 inHg
Wind13.5 mph S
Humidity79%
Visibility—
Dew point54°
Sun, 0165° / 56°0.15Light rain
65 °Light rain

Portage, Sunday, 1 November

Light rain. High 65°, low 56°.

Pressure30.03 inHg
Wind12.6 mph S
Humidity74%
Visibility—
Dew point55°
Mon, 0259° / 50°0Overcast
59 °Overcast

Portage, Monday, 2 November

Overcast. High 59°, low 50°.

Pressure30.09 inHg
Wind17.8 mph E
Humidity82%
Visibility—
Dew point51°
Tue, 0354° / 49°1.09Rain
54 °Rain

Portage, Tuesday, 3 November

Rain. High 54°, low 49°.

Pressure29.88 inHg
Wind20.6 mph E
Humidity94%
Visibility—
Dew point50°
Wed, 0453° / 40°0Clear
53 °Clear

Portage, Wednesday, 4 November

Clear. High 53°, low 40°.

Pressure30.03 inHg
Wind12.3 mph N
Humidity51%
Visibility—
Dew point33°
Thu, 0540° / 29°0Partly cloudy
40 °Partly cloudy

Portage, Thursday, 5 November

Partly cloudy. High 40°, low 29°.

Pressure30.12 inHg
Wind16.8 mph N
Humidity46%
Visibility—
Dew point20°
Fri, 0638° / 26°0Clear
38 °Clear

Portage, Friday, 6 November

Clear. High 38°, low 26°.

Pressure30.42 inHg
Wind13.8 mph NW
Humidity42%
Visibility—
Dew point15°
Sat, 0739° / 26°0Overcast
39 °Overcast

Portage, Saturday, 7 November

Overcast. High 39°, low 26°.

Pressure30.39 inHg
Wind17.7 mph S
Humidity44%
Visibility—
Dew point17°
Sun, 0854° / 38°0.02Light rain
54 °Light rain

Portage, Sunday, 8 November

Light rain. High 54°, low 38°.

Pressure29.91 inHg
Wind17.1 mph S
Humidity64%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0948° / 36°0.1Climate normal
48 °Climate normal

Portage, Monday, 9 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation35%
Record high70° (2020)
Record low16° (1991)
Tue, 1047° / 34°0.12Climate normal
47 °Climate normal

Portage, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation30%
Record high70° (2022)
Record low14° (2017)
Wed, 1145° / 31°0.08Climate normal
45 °Climate normal

Portage, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (1964)
Record low13° (2019)
Thu, 1243° / 31°0.06Climate normal
43 °Climate normal

Portage, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1964)
Record low3° (2019)
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)

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.