Monthly outlook for Tappan, MI: average high 61.4°, average low 49.1°. That is 2.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 13 October (81.1°), the coolest 26 October (37.2°).
61.4°/49.1°
Average high / low
+2.7°
Above normal
5 / 6
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.9°
57.4°
+3°
23 October – 1 November
58.8°
54.4°
+2.4°
2 November – 11 November
at normal
50.1°
—
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 (4 mi).
Wed, 1463° / 56°0.36
63 °
Tappan, Wednesday, 14 October
Heavy rain. High 63°, low 56°.
Pressure30.06 inHg
Wind8.9 mph NW
Humidity65%
Visibility6.2 mi
Dew point50°
Thu, 1560° / 52°0.35
60 °
Tappan, Thursday, 15 October
Rain. High 60°, low 52°.
Pressure30.21 inHg
Wind6.9 mph SE
Humidity66%
Visibility6.2 mi
Dew point46°
Fri, 1655° / 46°0.61
55 °
Tappan, Friday, 16 October
Heavy rain. High 55°, low 46°.
Pressure29.74 inHg
Wind10.9 mph NW
Humidity78%
Visibility6.2 mi
Dew point49°
Sat, 1752° / 39°0
52 °
Tappan, Saturday, 17 October
Clear. High 52°, low 39°.
Pressure30.42 inHg
Wind15.3 mph NW
Humidity50%
Visibility—
Dew point31°
Sun, 1860° / 43°0
60 °
Tappan, Sunday, 18 October
Overcast. High 60°, low 43°.
Pressure30.27 inHg
Wind13.9 mph SW
Humidity52%
Visibility—
Dew point40°
Mon, 1964° / 49°0
64 °
Tappan, Monday, 19 October
Overcast. High 64°, low 49°.
Pressure30.27 inHg
Wind10.7 mph SW
Humidity38%
Visibility—
Dew point36°
Tue, 2057° / 54°0.06
57 °
Tappan, Tuesday, 20 October
Light rain. High 57°, low 54°.
Pressure30.33 inHg
Wind8.8 mph S
Humidity86%
Visibility—
Dew point53°
Wed, 2166° / 56°0
66 °
Tappan, Wednesday, 21 October
Overcast. High 66°, low 56°.
Pressure30.33 inHg
Wind6.9 mph S
Humidity69%
Visibility—
Dew point54°
Thu, 2270° / 55°0
70 °
Tappan, Thursday, 22 October
Overcast. High 70°, low 55°.
Pressure30.18 inHg
Wind12.2 mph S
Humidity54%
Visibility—
Dew point51°
Fri, 2371° / 61°0.01
71 °
Tappan, Friday, 23 October
Light rain. High 71°, low 61°.
Pressure29.97 inHg
Wind20.1 mph SW
Humidity49%
Visibility—
Dew point50°
Sat, 2463° / 47°0
63 °
Tappan, Saturday, 24 October
Overcast. High 63°, low 47°.
Pressure30.06 inHg
Wind18.1 mph W
Humidity44%
Visibility—
Dew point37°
Sun, 2556° / 41°0
56 °
Tappan, Sunday, 25 October
Clear. High 56°, low 41°.
Pressure30.06 inHg
Wind15.3 mph W
Humidity38%
Visibility—
Dew point28°
Mon, 2654° / 37°0
54 °
Tappan, Monday, 26 October
Clear. High 54°, low 37°.
Pressure30.18 inHg
Wind13.7 mph NW
Humidity42%
Visibility—
Dew point29°
Tue, 2757° / 38°0
57 °
Tappan, Tuesday, 27 October
Overcast. High 57°, low 38°.
Pressure30.15 inHg
Wind13.1 mph W
Humidity43%
Visibility—
Dew point31°
Wed, 2852° / 46°0.01
52 °
Tappan, Wednesday, 28 October
Light rain. High 52°, low 46°.
Pressure29.77 inHg
Wind16.4 mph W
Humidity54%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2953° / 41°0.07
53 °
Tappan, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (2024)
Record low28° (1965)
Fri, 3053° / 41°0.07
53 °
Tappan, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.07 in
Chance of precipitation30%
Record high73° (2024)
Record low30° (1988)
Sat, 3154° / 42°0.11
54 °
Tappan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (2024)
Record low25° (2020)
Sun, 0154° / 43°0.12
54 °
Tappan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.12 in
Chance of precipitation52%
Record high70° (1974)
Record low28° (2023)
Mon, 0253° / 41°0.19
53 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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 °
Tappan, 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)
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 Tappan, 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 Tappan, 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.