As of 09:54 CDT

Weather in Portage, IL

57°Current weather

Portage, Thursday, 22 October, 09:54

Partly cloudy. Feels like 56°. High 73°, low 48°.

Pressure30.27 inHg
Wind3 mph SE
Humidity78%
Visibility6.2 mi
Dew point50°

Monthly outlook for Portage, IL: average high 61.6°, average low 45.8°. That is 4.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (73.4°), the coolest 30 October (34.1°).

61.6°/45.8°
Average high / low
+4.7°
Above normal
4 / 5
Wet days / normal
1.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October64.8°54.9°+5.5°
1 November – 10 November56.5°49.7°+3.8°
11 November – 20 Novemberat normal44.5°—

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, 2373° / 49°0Clear
73 °Clear

Portage, Friday, 23 October

Clear. High 73°, low 49°.

Pressure30.27 inHg
Wind6.9 mph SE
Humidity59%
Visibility6.2 mi
Dew point52°
Sat, 2469° / 50°0Overcast
69 °Overcast

Portage, Saturday, 24 October

Overcast. High 69°, low 50°.

Pressure30.30 inHg
Wind9.5 mph S
Humidity60%
Visibility6.2 mi
Dew point51°
Sun, 2572° / 53°0Overcast
72 °Overcast

Portage, Sunday, 25 October

Overcast. High 72°, low 53°.

Pressure30.36 inHg
Wind3.5 mph S
Humidity62%
Visibility6.2 mi
Dew point54°
Mon, 2668° / 53°0Overcast
68 °Overcast

Portage, Monday, 26 October

Overcast. High 68°, low 53°.

Pressure30.33 inHg
Wind9.7 mph E
Humidity74%
Visibility—
Dew point56°
Tue, 2767° / 51°0.01Light rain
67 °Light rain

Portage, Tuesday, 27 October

Light rain. High 67°, low 51°.

Pressure30.27 inHg
Wind9.4 mph E
Humidity69%
Visibility—
Dew point52°
Wed, 2861° / 51°0Overcast
61 °Overcast

Portage, Wednesday, 28 October

Overcast. High 61°, low 51°.

Pressure30.09 inHg
Wind10.2 mph S
Humidity72%
Visibility—
Dew point51°
Thu, 2956° / 39°0Light rain
56 °Light rain

Portage, Thursday, 29 October

Light rain. High 56°, low 39°.

Pressure30.24 inHg
Wind18.7 mph NW
Humidity50%
Visibility—
Dew point32°
Fri, 3053° / 34°0Mostly clear
53 °Mostly clear

Portage, Friday, 30 October

Mostly clear. High 53°, low 34°.

Pressure30.27 inHg
Wind6.2 mph SE
Humidity45%
Visibility—
Dew point28°
Sat, 3155° / 43°0.97Rain
55 °Rain

Portage, Saturday, 31 October

Rain. High 55°, low 43°.

Pressure29.97 inHg
Wind16.5 mph S
Humidity98%
Visibility—
Dew point47°
Sun, 0160° / 54°0.51Rain
60 °Rain

Portage, Sunday, 1 November

Rain. High 60°, low 54°.

Pressure29.97 inHg
Wind14.9 mph S
Humidity92%
Visibility—
Dew point56°
Mon, 0259° / 46°0Clear
59 °Clear

Portage, Monday, 2 November

Clear. High 59°, low 46°.

Pressure30.21 inHg
Wind6.5 mph N
Humidity51%
Visibility—
Dew point38°
Tue, 0362° / 43°0Clear
62 °Clear

Portage, Tuesday, 3 November

Clear. High 62°, low 43°.

Pressure30.15 inHg
Wind12.5 mph W
Humidity65%
Visibility—
Dew point47°
Wed, 0453° / 39°0Partly cloudy
53 °Partly cloudy

Portage, Wednesday, 4 November

Partly cloudy. High 53°, low 39°.

Pressure30.27 inHg
Wind6.5 mph NE
Humidity46%
Visibility—
Dew point30°
Thu, 0553° / 36°0.13Rain
53 °Rain

Portage, Thursday, 5 November

Rain. High 53°, low 36°.

Pressure30.18 inHg
Wind12.2 mph S
Humidity55%
Visibility—
Dew point34°
Fri, 0652° / 43°0.24Rain
52 °Rain

Portage, Friday, 6 November

Rain. High 52°, low 43°.

Pressure30.00 inHg
Wind13.3 mph S
Humidity81%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 35°0.03Climate normal
49 °Climate normal

Portage, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.03 in
Chance of precipitation22%
Record high67° (2020)
Record low5° (1991)
Sun, 0849° / 35°0.05Climate normal
49 °Climate normal

Portage, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (1999)
Record low6° (1991)
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)

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.