Monthly outlook for Harvey, MI: average high 55.1°, average low 45.5°. That is 1.7° above the climate normal for October. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 8 days and 2.1 inches. The warmest day looks like 23 October (65.8°), the coolest 27 October (34.6°).
55.1°/45.5°
Average high / low
+1.7°
Above normal
7 / 8
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
57.1°
52.9°
+2.3°
23 October – 1 November
51.7°
49.6°
+1.2°
2 November – 11 November
at normal
44.5°
—
October records over 66 years
82.9°2 October 2023All-time high
19.9°27 October 2020All-time low
Wed, 1455° / 49°0
55 °
Harvey, Wednesday, 14 October
Overcast. High 55°, low 49°.
Pressure30.15 inHg
Wind10.2 mph NW
Humidity72%
Visibility6.2 mi
Dew point43°
Thu, 1554° / 47°0.28
54 °
Harvey, Thursday, 15 October
Rain. High 54°, low 47°.
Pressure30.18 inHg
Wind6 mph S
Humidity67%
Visibility6.2 mi
Dew point41°
Fri, 1650° / 44°0.5
50 °
Harvey, Friday, 16 October
Rain. High 50°, low 44°.
Pressure30.06 inHg
Wind24.8 mph N
Humidity89%
Visibility2.3 mi
Dew point42°
Sat, 1758° / 38°0
58 °
Harvey, Saturday, 17 October
Mostly clear. High 58°, low 38°.
Pressure30.24 inHg
Wind13.3 mph SW
Humidity40%
Visibility—
Dew point30°
Sun, 1864° / 46°0
64 °
Harvey, Sunday, 18 October
Overcast. High 64°, low 46°.
Pressure29.91 inHg
Wind13.5 mph SW
Humidity45%
Visibility—
Dew point38°
Mon, 1957° / 47°0
57 °
Harvey, Monday, 19 October
Clear. High 57°, low 47°.
Pressure30.09 inHg
Wind13.4 mph W
Humidity48%
Visibility—
Dew point36°
Tue, 2058° / 42°0
58 °
Harvey, Tuesday, 20 October
Clear. High 58°, low 42°.
Pressure30.33 inHg
Wind9.4 mph S
Humidity48%
Visibility—
Dew point37°
Wed, 2157° / 46°0
57 °
Harvey, Wednesday, 21 October
Overcast. High 57°, low 46°.
Pressure30.21 inHg
Wind12.1 mph S
Humidity91%
Visibility—
Dew point53°
Thu, 2262° / 58°0.09
62 °
Harvey, Thursday, 22 October
Light rain. High 62°, low 58°.
Pressure29.91 inHg
Wind12.2 mph S
Humidity95%
Visibility—
Dew point60°
Fri, 2366° / 54°0.4
66 °
Harvey, Friday, 23 October
Rain. High 66°, low 54°.
Pressure29.59 inHg
Wind19 mph S
Humidity88%
Visibility—
Dew point59°
Sat, 2448° / 46°0
48 °
Harvey, Saturday, 24 October
Overcast. High 48°, low 46°.
Pressure29.97 inHg
Wind21.7 mph W
Humidity61%
Visibility—
Dew point35°
Sun, 2552° / 42°0
52 °
Harvey, Sunday, 25 October
Overcast. High 52°, low 42°.
Pressure30.06 inHg
Wind14.8 mph NW
Humidity47%
Visibility—
Dew point30°
Mon, 2647° / 40°0.09
47 °
Harvey, Monday, 26 October
Snow. High 47°, low 40°.
Pressure30.12 inHg
Wind18.4 mph N
Humidity72%
Visibility—
Dew point35°
Tue, 2747° / 35°0
47 °
Harvey, Tuesday, 27 October
Light rain. High 47°, low 35°.
Pressure30.30 inHg
Wind10.9 mph S
Humidity47%
Visibility—
Dew point25°
Wed, 2851° / 44°0.09
51 °
Harvey, Wednesday, 28 October
Light rain. High 51°, low 44°.
Pressure29.97 inHg
Wind19.4 mph S
Humidity71%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2948° / 39°0.07
48 °
Harvey, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.07 in
Chance of precipitation40%
Record high69° (2024)
Record low29° (2017)
Fri, 3050° / 39°0.09
50 °
Harvey, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.09 in
Chance of precipitation40%
Record high70° (2024)
Record low27° (2023)
Sat, 3149° / 39°0.11
49 °
Harvey, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.11 in
Chance of precipitation47%
Record high63° (1971)
Record low25° (1996)
Sun, 0148° / 38°0.12
48 °
Harvey, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.12 in
Chance of precipitation47%
Record high66° (1990)
Record low26° (2023)
Mon, 0247° / 37°0.13
47 °
Harvey, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.13 in
Chance of precipitation47%
Record high66° (2022)
Record low21° (1984)
Tue, 0346° / 37°0.07
46 °
Harvey, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.07 in
Chance of precipitation45%
Record high67° (2022)
Record low21° (1991)
Wed, 0446° / 37°0.09
46 °
Harvey, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation42%
Record high69° (2008)
Record low23° (1966)
Thu, 0546° / 37°0.13
46 °
Harvey, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.13 in
Chance of precipitation43%
Record high65° (2015)
Record low19° (1991)
Fri, 0646° / 36°0.11
46 °
Harvey, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.11 in
Chance of precipitation45%
Record high70° (2020)
Record low15° (1991)
Sat, 0745° / 35°0.06
45 °
Harvey, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.06 in
Chance of precipitation42%
Record high68° (2020)
Record low14° (1991)
Sun, 0844° / 35°0.07
44 °
Harvey, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.07 in
Chance of precipitation43%
Record high67° (2020)
Record low18° (1991)
Mon, 0944° / 35°0.11
44 °
Harvey, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.11 in
Chance of precipitation45%
Record high70° (2020)
Record low15° (2017)
Tue, 1042° / 34°0.19
42 °
Harvey, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low34°
Average precipitation0.19 in
Chance of precipitation67%
Record high66° (2020)
Record low15° (2017)
Wed, 1140° / 32°0.1
40 °
Harvey, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.1 in
Chance of precipitation43%
Record high62° (1964)
Record low15° (2019)
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 Harvey, 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 Harvey, 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.