As of 13:35 CDT

Weather in Thornton, IL

62°Current weather

Thornton, Saturday, 31 October, 13:35

Overcast. Feels like 61°. High 63°, low 53°.

Pressure30.33 inHg
Wind8.1 mph SE
Humidity62%
Visibility6.2 mi
Dew point50°

Monthly outlook for Thornton, IL: average high 58.1°, average low 50°. That is 3.8° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 3 November (68.9°), the coolest 15 November (41.3°).

58.1°/50°
Average high / low
+3.8°
Above normal
5 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November60.2°53.3°+3.8°
10 November – 19 November54.7°47.8°+3.8°
20 November – 29 Novemberat normal43.8°—

October records over 66 years

88.5°3 October 2025All-time high
26.2°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Calumet Park (7 mi).

Sun, 0167° / 56°0.02Light rain
67 °Light rain

Thornton, Sunday, 1 November

Light rain. High 67°, low 56°.

Pressure30.36 inHg
Wind3.6 mph SW
Humidity72%
Visibility6.2 mi
Dew point53°
Mon, 0262° / 54°0.01Light rain
62 °Light rain

Thornton, Monday, 2 November

Light rain. High 62°, low 54°.

Pressure30.12 inHg
Wind8.4 mph S
Humidity76%
Visibility6.2 mi
Dew point52°
Tue, 0369° / 61°0.07Light rain
69 °Light rain

Thornton, Tuesday, 3 November

Light rain. High 69°, low 61°.

Pressure29.91 inHg
Wind12.4 mph S
Humidity76%
Visibility6.2 mi
Dew point60°
Wed, 0466° / 58°0.41Rain
66 °Rain

Thornton, Wednesday, 4 November

Rain. High 66°, low 58°.

Pressure29.65 inHg
Wind11.6 mph S
Humidity90%
Visibility5.9 mi
Dew point62°
Thu, 0558° / 48°0.22Light rain
58 °Light rain

Thornton, Thursday, 5 November

Light rain. High 58°, low 48°.

Pressure29.71 inHg
Wind10.5 mph SW
Humidity74%
Visibility—
Dew point49°
Fri, 0654° / 52°0Overcast
54 °Overcast

Thornton, Friday, 6 November

Overcast. High 54°, low 52°.

Pressure29.88 inHg
Wind10.1 mph N
Humidity64%
Visibility—
Dew point42°
Sat, 0756° / 48°0Overcast
56 °Overcast

Thornton, Saturday, 7 November

Overcast. High 56°, low 48°.

Pressure29.88 inHg
Wind9.7 mph N
Humidity50%
Visibility—
Dew point37°
Sun, 0852° / 47°0.05Light rain
52 °Light rain

Thornton, Sunday, 8 November

Light rain. High 52°, low 47°.

Pressure29.88 inHg
Wind11.5 mph N
Humidity70%
Visibility—
Dew point40°
Mon, 0955° / 51°0.04Light rain
55 °Light rain

Thornton, Monday, 9 November

Light rain. High 55°, low 51°.

Pressure30.00 inHg
Wind10 mph NE
Humidity75%
Visibility—
Dew point47°
Tue, 1061° / 47°0Clear
61 °Clear

Thornton, Tuesday, 10 November

Clear. High 61°, low 47°.

Pressure30.09 inHg
Wind5.3 mph W
Humidity57%
Visibility—
Dew point42°
Wed, 1156° / 50°0Overcast
56 °Overcast

Thornton, Wednesday, 11 November

Overcast. High 56°, low 50°.

Pressure29.85 inHg
Wind9.4 mph S
Humidity61%
Visibility—
Dew point42°
Thu, 1253° / 46°0.06Light rain
53 °Light rain

Thornton, Thursday, 12 November

Light rain. High 53°, low 46°.

Pressure30.09 inHg
Wind14 mph NE
Humidity70%
Visibility—
Dew point40°
Fri, 1353° / 42°0Partly cloudy
53 °Partly cloudy

Thornton, Friday, 13 November

Partly cloudy. High 53°, low 42°.

Pressure30.09 inHg
Wind13.1 mph SW
Humidity44%
Visibility—
Dew point29°
Sat, 1457° / 48°0Partly cloudy
57 °Partly cloudy

Thornton, Saturday, 14 November

Partly cloudy. High 57°, low 48°.

Pressure29.88 inHg
Wind14.7 mph NW
Humidity39%
Visibility—
Dew point31°
Sun, 1548° / 41°0Mostly clear
48 °Mostly clear

Thornton, Sunday, 15 November

Mostly clear. High 48°, low 41°.

Pressure30.09 inHg
Wind10.5 mph NW
Humidity46%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1647° / 35°0.05Climate normal
47 °Climate normal

Thornton, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (2023)
Record low22° (1997)
Tue, 1748° / 36°0.09Climate normal
48 °Climate normal

Thornton, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2016)
Record low17° (2014)
Wed, 1848° / 37°0.15Climate normal
48 °Climate normal

Thornton, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low37°
Average precipitation0.15 in
Chance of precipitation30%
Record high66° (2016)
Record low13° (2014)
Thu, 1947° / 36°0.08Climate normal
47 °Climate normal

Thornton, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.08 in
Chance of precipitation35%
Record high65° (1985)
Record low19° (2014)
Fri, 2046° / 35°0.1Climate normal
46 °Climate normal

Thornton, Friday, 20 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation37%
Record high62° (2003)
Record low14° (2022)
Sat, 2145° / 34°0.11Climate normal
45 °Climate normal

Thornton, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high66° (1990)
Record low12° (1964)
Sun, 2245° / 33°0.05Climate normal
45 °Climate normal

Thornton, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high67° (2010)
Record low12° (2015)
Mon, 2345° / 33°0.09Climate normal
45 °Climate normal

Thornton, Monday, 23 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high64° (2003)
Record low14° (1970)
Tue, 2444° / 32°0.08Climate normal
44 °Climate normal

Thornton, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (1966)
Record low15° (1970)
Wed, 2544° / 33°0.08Climate normal
44 °Climate normal

Thornton, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.08 in
Chance of precipitation37%
Record high59° (1966)
Record low18° (2005)
Thu, 2644° / 33°0.13Climate normal
44 °Climate normal

Thornton, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.13 in
Chance of precipitation43%
Record high62° (1990)
Record low8° (1977)
Fri, 2743° / 33°0.22Climate normal
43 °Climate normal

Thornton, Friday, 27 November

Climate normal for this date — 60-year average.

Average high43°
Average low33°
Average precipitation0.22 in
Chance of precipitation47%
Record high65° (1990)
Record low16° (1977)
Sat, 2841° / 30°0.14Climate normal
41 °Climate normal

Thornton, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high41°
Average low30°
Average precipitation0.14 in
Chance of precipitation28%
Record high64° (1990)
Record low6° (2018)
Sun, 2942° / 30°0.08Climate normal
42 °Climate normal

Thornton, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation32%
Record high65° (1998)
Record low10° (1976)

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 Thornton, 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 Thornton, 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.