Monthly outlook for Thornton, MI: average high 59.2°, average low 41.8°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 6 days and 1.5 inches. The warmest day looks like 22 October (64.9°), the coolest 26 October (37.3°).
59.2°/41.8°
Average high / low
+2.3°
Above normal
2 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
60.5°
56°
+2.5°
27 October – 5 November
57°
52.9°
+2.3°
6 November – 15 November
at normal
47.6°
—
October records over 66 years
86°8 October 2007All-time high
25.2°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Marysville (8 mi).
Sun, 1860° / 42°0
60 °
Thornton, Sunday, 18 October
Clear. High 60°, low 42°.
Pressure30.47 inHg
Wind11.3 mph SW
Humidity57%
Visibility6.2 mi
Dew point40°
Mon, 1965° / 42°0
65 °
Thornton, Monday, 19 October
Clear. High 65°, low 42°.
Pressure30.45 inHg
Wind5.4 mph SW
Humidity54%
Visibility6.2 mi
Dew point43°
Tue, 2064° / 41°0
64 °
Thornton, Tuesday, 20 October
Clear. High 64°, low 41°.
Pressure30.42 inHg
Wind3.2 mph NE
Humidity68%
Visibility6.2 mi
Dew point49°
Wed, 2164° / 41°0
64 °
Thornton, Wednesday, 21 October
Overcast. High 64°, low 41°.
Pressure30.33 inHg
Wind3.8 mph E
Humidity60%
Visibility—
Dew point46°
Thu, 2265° / 42°0
65 °
Thornton, Thursday, 22 October
Overcast. High 65°, low 42°.
Pressure30.21 inHg
Wind4.1 mph NE
Humidity56%
Visibility—
Dew point44°
Fri, 2363° / 49°0
63 °
Thornton, Friday, 23 October
Clear. High 63°, low 49°.
Pressure30.30 inHg
Wind8.7 mph NE
Humidity52%
Visibility—
Dew point43°
Sat, 2461° / 41°0
61 °
Thornton, Saturday, 24 October
Overcast. High 61°, low 41°.
Pressure30.30 inHg
Wind8.5 mph S
Humidity39%
Visibility—
Dew point33°
Sun, 2560° / 42°0
60 °
Thornton, Sunday, 25 October
Overcast. High 60°, low 42°.
Pressure30.21 inHg
Wind16.2 mph NW
Humidity46%
Visibility—
Dew point38°
Mon, 2654° / 37°0
54 °
Thornton, Monday, 26 October
Overcast. High 54°, low 37°.
Pressure30.39 inHg
Wind8.5 mph NW
Humidity48%
Visibility—
Dew point32°
Tue, 2760° / 43°0
60 °
Thornton, Tuesday, 27 October
Overcast. High 60°, low 43°.
Pressure30.12 inHg
Wind12.9 mph SW
Humidity40%
Visibility—
Dew point34°
Wed, 2859° / 41°0
59 °
Thornton, Wednesday, 28 October
Clear. High 59°, low 41°.
Pressure30.00 inHg
Wind10.8 mph NW
Humidity45%
Visibility—
Dew point35°
Thu, 2956° / 41°0
56 °
Thornton, Thursday, 29 October
Overcast. High 56°, low 41°.
Pressure30.09 inHg
Wind7.8 mph SW
Humidity49%
Visibility—
Dew point35°
Fri, 3058° / 49°0.52
58 °
Thornton, Friday, 30 October
Rain. High 58°, low 49°.
Pressure29.68 inHg
Wind14.9 mph SE
Humidity92%
Visibility—
Dew point49°
Sat, 3155° / 44°0.11
55 °
Thornton, Saturday, 31 October
Light rain. High 55°, low 44°.
Pressure29.83 inHg
Wind20.3 mph N
Humidity79%
Visibility—
Dew point42°
Sun, 0154° / 38°0
54 °
Thornton, Sunday, 1 November
Clear. High 54°, low 38°.
Pressure30.03 inHg
Wind12.4 mph NW
Humidity46%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0253° / 41°0.19
53 °
Thornton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.19 in
Chance of precipitation45%
Record high67° (1982)
Record low29° (2020)
Tue, 0351° / 40°0.12
51 °
Thornton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation30%
Record high70° (1987)
Record low25° (1991)
Wed, 0451° / 40°0.07
51 °
Thornton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.07 in
Chance of precipitation37%
Record high69° (2015)
Record low23° (1991)
Thu, 0551° / 41°0.08
51 °
Thornton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high71° (2022)
Record low23° (1991)
Fri, 0650° / 39°0.06
50 °
Thornton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (2024)
Record low27° (2019)
Sat, 0749° / 39°0.09
49 °
Thornton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high65° (2020)
Record low25° (1991)
Sun, 0849° / 38°0.03
49 °
Thornton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (2020)
Record low21° (1991)
Mon, 0950° / 38°0.09
50 °
Thornton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.09 in
Chance of precipitation32%
Record high68° (1999)
Record low23° (1991)
Tue, 1049° / 38°0.12
49 °
Thornton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.12 in
Chance of precipitation35%
Record high70° (2020)
Record low19° (2017)
Wed, 1147° / 37°0.12
47 °
Thornton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.12 in
Chance of precipitation32%
Record high69° (2020)
Record low20° (2017)
Thu, 1246° / 35°0.06
46 °
Thornton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.06 in
Chance of precipitation33%
Record high65° (1964)
Record low13° (2019)
Fri, 1345° / 34°0.05
45 °
Thornton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high63° (2005)
Record low0° (2019)
Sat, 1446° / 35°0.08
46 °
Thornton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high60° (1973)
Record low17° (1986)
Sun, 1546° / 35°0.13
46 °
Thornton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.13 in
Chance of precipitation40%
Record high64° (2001)
Record low20° (1967)
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, MI 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, MI 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.