Monthly outlook for Harrietta, MI: average high 56.9°, average low 45.4°. That is 2° above the climate normal for October. Precipitation is expected on 6 days (about 3.1 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 23 October (68.9°), the coolest 27 October (34.6°).
56.9°/45.4°
Average high / low
+2°
Above normal
6 / 7
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
59.1°
54.2°
+2.7°
23 October – 1 November
53.4°
51.1°
+1.3°
2 November – 11 November
at normal
46.1°
—
October records over 66 years
83.5°7 October 2007All-time high
22.8°19 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Cadillac (15 mi).
Wed, 1461° / 51°0
61 °
Harrietta, Wednesday, 14 October
Overcast. High 61°, low 51°.
Pressure30.12 inHg
Wind8.8 mph N
Humidity67%
Visibility6.2 mi
Dew point46°
Thu, 1558° / 44°0.38
58 °
Harrietta, Thursday, 15 October
Rain. High 58°, low 44°.
Pressure30.18 inHg
Wind6.7 mph SE
Humidity68%
Visibility6.2 mi
Dew point45°
Fri, 1650° / 41°0.51
50 °
Harrietta, Friday, 16 October
Rain. High 50°, low 41°.
Pressure29.85 inHg
Wind8.8 mph NW
Humidity97%
Visibility3.3 mi
Dew point48°
Sat, 1751° / 39°0
51 °
Harrietta, Saturday, 17 October
Clear. High 51°, low 39°.
Pressure30.39 inHg
Wind11.7 mph SW
Humidity51%
Visibility—
Dew point32°
Sun, 1857° / 45°0
57 °
Harrietta, Sunday, 18 October
Overcast. High 57°, low 45°.
Pressure30.15 inHg
Wind17.5 mph SW
Humidity55%
Visibility—
Dew point40°
Mon, 1960° / 46°0
60 °
Harrietta, Monday, 19 October
Light rain. High 60°, low 46°.
Pressure30.09 inHg
Wind13.1 mph SW
Humidity51%
Visibility—
Dew point41°
Tue, 2060° / 40°0
60 °
Harrietta, Tuesday, 20 October
Clear. High 60°, low 40°.
Pressure30.33 inHg
Wind7.9 mph SE
Humidity43%
Visibility—
Dew point35°
Wed, 2164° / 49°0
64 °
Harrietta, Wednesday, 21 October
Overcast. High 64°, low 49°.
Pressure30.27 inHg
Wind9.3 mph SE
Humidity66%
Visibility—
Dew point50°
Thu, 2262° / 58°1.67
62 °
Harrietta, Thursday, 22 October
Heavy rain. High 62°, low 58°.
Pressure30.03 inHg
Wind14.7 mph S
Humidity97%
Visibility—
Dew point59°
Fri, 2369° / 57°0.2
69 °
Harrietta, Friday, 23 October
Light rain. High 69°, low 57°.
Pressure29.83 inHg
Wind18.9 mph S
Humidity58%
Visibility—
Dew point53°
Sat, 2453° / 45°0
53 °
Harrietta, Saturday, 24 October
Partly cloudy. High 53°, low 45°.
Pressure30.12 inHg
Wind17.6 mph W
Humidity59%
Visibility—
Dew point37°
Sun, 2550° / 41°0
50 °
Harrietta, Sunday, 25 October
Clear. High 50°, low 41°.
Pressure30.15 inHg
Wind12.6 mph W
Humidity48%
Visibility—
Dew point30°
Mon, 2647° / 40°0.22
47 °
Harrietta, Monday, 26 October
Light rain. High 47°, low 40°.
Pressure30.03 inHg
Wind14.8 mph NW
Humidity71%
Visibility—
Dew point38°
Tue, 2748° / 35°0
48 °
Harrietta, Tuesday, 27 October
Mostly clear. High 48°, low 35°.
Pressure30.33 inHg
Wind6.7 mph S
Humidity47%
Visibility—
Dew point27°
Wed, 2854° / 39°0
54 °
Harrietta, Wednesday, 28 October
Overcast. High 54°, low 39°.
Pressure30.09 inHg
Wind13.4 mph S
Humidity49%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2949° / 37°0.07
49 °
Harrietta, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation32%
Record high71° (2024)
Record low25° (1965)
Fri, 3051° / 37°0.09
51 °
Harrietta, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2024)
Record low25° (1988)
Sat, 3151° / 38°0.1
51 °
Harrietta, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.1 in
Chance of precipitation47%
Record high67° (1979)
Record low24° (2020)
Sun, 0149° / 38°0.13
49 °
Harrietta, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation43%
Record high68° (1990)
Record low25° (2023)
Mon, 0249° / 36°0.13
49 °
Harrietta, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation45%
Record high68° (1961)
Record low24° (1984)
Tue, 0348° / 36°0.09
48 °
Harrietta, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation42%
Record high68° (1961)
Record low18° (1989)
Wed, 0447° / 36°0.1
47 °
Harrietta, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.1 in
Chance of precipitation38%
Record high68° (2015)
Record low18° (1991)
Thu, 0548° / 36°0.12
48 °
Harrietta, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.12 in
Chance of precipitation43%
Record high67° (1978)
Record low20° (1991)
Fri, 0647° / 34°0.14
47 °
Harrietta, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.14 in
Chance of precipitation37%
Record high68° (1975)
Record low16° (1991)
Sat, 0746° / 34°0.04
46 °
Harrietta, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (2020)
Record low12° (1991)
Sun, 0846° / 33°0.07
46 °
Harrietta, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high69° (2020)
Record low12° (1991)
Mon, 0945° / 33°0.11
45 °
Harrietta, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation50%
Record high69° (2020)
Record low17° (1995)
Tue, 1045° / 33°0.11
45 °
Harrietta, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation42%
Record high68° (2022)
Record low13° (2017)
Wed, 1142° / 31°0.1
42 °
Harrietta, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.1 in
Chance of precipitation42%
Record high64° (2012)
Record low13° (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 Harrietta, 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 Harrietta, 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.