Monthly outlook for Thornton, WI: average high 57°, average low 43.8°. That is 1.6° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (65.3°), the coolest 27 October (31.1°).
57°/43.8°
Average high / low
+1.6°
Above normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
59.5°
55.2°
+2.4°
23 October – 1 November
52.9°
51.8°
+0.6°
2 November – 11 November
at normal
46.3°
—
October records over 66 years
84.7°3 October 2025All-time high
20.5°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Cecil (12 mi).
Wed, 1459° / 46°0.01
59 °
Thornton, Wednesday, 14 October
Light rain. High 59°, low 46°.
Pressure30.18 inHg
Wind4 mph N
Humidity64%
Visibility6.2 mi
Dew point45°
Thu, 1555° / 46°0.5
55 °
Thornton, Thursday, 15 October
Rain. High 55°, low 46°.
Pressure30.12 inHg
Wind7.3 mph SE
Humidity75%
Visibility3.0 mi
Dew point46°
Fri, 1651° / 39°0.08
51 °
Thornton, Friday, 16 October
Light rain. High 51°, low 39°.
Pressure30.12 inHg
Wind19.6 mph N
Humidity61%
Visibility6.2 mi
Dew point38°
Sat, 1756° / 32°0
56 °
Thornton, Saturday, 17 October
Clear. High 56°, low 32°.
Pressure30.36 inHg
Wind12.4 mph SW
Humidity42%
Visibility—
Dew point28°
Sun, 1860° / 44°0
60 °
Thornton, Sunday, 18 October
Overcast. High 60°, low 44°.
Pressure30.03 inHg
Wind14.5 mph SW
Humidity47%
Visibility—
Dew point37°
Mon, 1961° / 45°0
61 °
Thornton, Monday, 19 October
Partly cloudy. High 61°, low 45°.
Pressure30.12 inHg
Wind9.6 mph NW
Humidity38%
Visibility—
Dew point32°
Tue, 2061° / 41°0
61 °
Thornton, Tuesday, 20 October
Clear. High 61°, low 41°.
Pressure30.30 inHg
Wind7.9 mph SE
Humidity45%
Visibility—
Dew point36°
Wed, 2163° / 53°0.05
63 °
Thornton, Wednesday, 21 October
Light rain. High 63°, low 53°.
Pressure30.21 inHg
Wind9.1 mph S
Humidity86%
Visibility—
Dew point54°
Thu, 2265° / 60°0.23
65 °
Thornton, Thursday, 22 October
Light rain. High 65°, low 60°.
Pressure29.91 inHg
Wind9.2 mph S
Humidity96%
Visibility—
Dew point63°
Fri, 2365° / 53°0.8
65 °
Thornton, Friday, 23 October
Heavy rain. High 65°, low 53°.
Pressure29.65 inHg
Wind21.2 mph SW
Humidity79%
Visibility—
Dew point59°
Sat, 2453° / 43°0
53 °
Thornton, Saturday, 24 October
Partly cloudy. High 53°, low 43°.
Pressure30.12 inHg
Wind20.8 mph W
Humidity55%
Visibility—
Dew point36°
Sun, 2555° / 37°0
55 °
Thornton, Sunday, 25 October
Light rain. High 55°, low 37°.
Pressure30.12 inHg
Wind11.3 mph W
Humidity45%
Visibility—
Dew point31°
Mon, 2646° / 36°0
46 °
Thornton, Monday, 26 October
Overcast. High 46°, low 36°.
Pressure30.18 inHg
Wind14.9 mph NW
Humidity67%
Visibility—
Dew point34°
Tue, 2747° / 31°0
47 °
Thornton, Tuesday, 27 October
Partly cloudy. High 47°, low 31°.
Pressure30.30 inHg
Wind9.1 mph S
Humidity51%
Visibility—
Dew point27°
Wed, 2851° / 42°0
51 °
Thornton, Wednesday, 28 October
Overcast. High 51°, low 42°.
Pressure29.97 inHg
Wind13.5 mph S
Humidity63%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2951° / 37°0.06
51 °
Thornton, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high78° (2024)
Record low24° (1988)
Fri, 3052° / 38°0.09
52 °
Thornton, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high77° (2024)
Record low20° (1988)
Sat, 3151° / 38°0.09
51 °
Thornton, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation35%
Record high66° (1971)
Record low25° (1996)
Sun, 0150° / 37°0.16
50 °
Thornton, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.16 in
Chance of precipitation32%
Record high69° (1990)
Record low23° (2023)
Mon, 0248° / 36°0.11
48 °
Thornton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.11 in
Chance of precipitation27%
Record high69° (1990)
Record low19° (1991)
Tue, 0348° / 35°0.06
48 °
Thornton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high69° (2022)
Record low16° (1991)
Wed, 0447° / 35°0.09
47 °
Thornton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation20%
Record high70° (2008)
Record low15° (1991)
Thu, 0548° / 35°0.09
48 °
Thornton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (2020)
Record low17° (1991)
Fri, 0647° / 34°0.08
47 °
Thornton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2020)
Record low12° (1991)
Sat, 0746° / 33°0.03
46 °
Thornton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (2020)
Record low8° (1991)
Sun, 0846° / 33°0.04
46 °
Thornton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (2020)
Record low11° (1991)
Mon, 0945° / 33°0.08
45 °
Thornton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation40%
Record high71° (2020)
Record low16° (2017)
Tue, 1044° / 32°0.14
44 °
Thornton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.14 in
Chance of precipitation38%
Record high71° (2022)
Record low10° (2017)
Wed, 1142° / 30°0.06
42 °
Thornton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1964)
Record low13° (1986)
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, WI 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, WI 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.