Monthly outlook for Thornton, WI: average high 60.5°, average low 45°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 2.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (84.3°), the coolest 24 October (30.3°).
60.5°/45°
Average high / low
+3°
Above normal
5 / 5
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
65.8°
56.3°
+5.3°
21 October – 30 October
51.7°
52.5°
-0.4°
31 October – 9 November
at normal
47.6°
—
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).
Mon, 1284° / 59°0.52
84 °
Thornton, Monday, 12 October
Heavy rain. High 84°, low 59°.
Pressure29.71 inHg
Wind5.9 mph W
Humidity48%
Visibility6.2 mi
Dew point59°
Tue, 1370° / 56°0.09
70 °
Thornton, Tuesday, 13 October
Rain. High 70°, low 56°.
Pressure29.80 inHg
Wind9.6 mph NW
Humidity71%
Visibility6.2 mi
Dew point57°
Wed, 1462° / 52°0
62 °
Thornton, Wednesday, 14 October
Overcast. High 62°, low 52°.
Pressure30.15 inHg
Wind5.1 mph NW
Humidity58%
Visibility6.2 mi
Dew point45°
Thu, 1559° / 48°0.08
59 °
Thornton, Thursday, 15 October
Light rain. High 59°, low 48°.
Pressure30.12 inHg
Wind5.7 mph SE
Humidity67%
Visibility6.2 mi
Dew point47°
Fri, 1653° / 43°0
53 °
Thornton, Friday, 16 October
Mostly clear. High 53°, low 43°.
Pressure30.39 inHg
Wind19.1 mph N
Humidity45%
Visibility—
Dew point31°
Sat, 1755° / 34°0
55 °
Thornton, Saturday, 17 October
Clear. High 55°, low 34°.
Pressure30.36 inHg
Wind14.6 mph SW
Humidity34%
Visibility—
Dew point25°
Sun, 1860° / 38°0
60 °
Thornton, Sunday, 18 October
Mostly clear. High 60°, low 38°.
Pressure30.09 inHg
Wind20.4 mph SW
Humidity37%
Visibility—
Dew point30°
Mon, 1965° / 42°0
65 °
Thornton, Monday, 19 October
Partly cloudy. High 65°, low 42°.
Pressure30.18 inHg
Wind11.3 mph SW
Humidity41%
Visibility—
Dew point37°
Tue, 2070° / 49°0
70 °
Thornton, Tuesday, 20 October
Overcast. High 70°, low 49°.
Pressure30.12 inHg
Wind11.3 mph S
Humidity51%
Visibility—
Dew point47°
Wed, 2164° / 58°0.67
64 °
Thornton, Wednesday, 21 October
Rain. High 64°, low 58°.
Pressure29.91 inHg
Wind16.7 mph S
Humidity88%
Visibility—
Dew point58°
Thu, 2263° / 42°1.57
63 °
Thornton, Thursday, 22 October
Heavy rain. High 63°, low 42°.
Pressure29.62 inHg
Wind16.5 mph S
Humidity66%
Visibility—
Dew point42°
Fri, 2345° / 36°0
45 °
Thornton, Friday, 23 October
Overcast. High 45°, low 36°.
Pressure29.91 inHg
Wind16.7 mph NW
Humidity63%
Visibility—
Dew point32°
Sat, 2447° / 30°0
47 °
Thornton, Saturday, 24 October
Mostly clear. High 47°, low 30°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity44%
Visibility—
Dew point24°
Sun, 2545° / 36°0.02
45 °
Thornton, Sunday, 25 October
Light rain. High 45°, low 36°.
Pressure29.88 inHg
Wind8.1 mph E
Humidity74%
Visibility—
Dew point37°
Mon, 2646° / 39°0
46 °
Thornton, Monday, 26 October
Overcast. High 46°, low 39°.
Pressure30.03 inHg
Wind4.7 mph NE
Humidity66%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 38°0.08
53 °
Thornton, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (1989)
Record low22° (2020)
Wed, 2851° / 38°0.08
51 °
Thornton, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation22%
Record high67° (1974)
Record low24° (1967)
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)
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.