Monthly outlook for Harrietta, MI: average high 59.7°, average low 46°. That is 4° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 24 October (67.9°), the coolest 17 October (39.3°).
59.7°/46°
Average high / low
+4°
Above normal
3 / 7
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
59.6°
53.5°
+3.4°
25 October – 3 November
59.9°
50.1°
+5.4°
4 November – 13 November
at normal
44.7°
—
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).
Fri, 1649° / 42°0.29
49 °
Harrietta, Friday, 16 October
Rain. High 49°, low 42°.
Pressure29.94 inHg
Wind12.5 mph N
Humidity96%
Visibility3.3 mi
Dew point45°
Sat, 1752° / 39°0
52 °
Harrietta, Saturday, 17 October
Clear. High 52°, low 39°.
Pressure30.45 inHg
Wind10.9 mph W
Humidity52%
Visibility6.2 mi
Dew point33°
Sun, 1858° / 44°0
58 °
Harrietta, Sunday, 18 October
Clear. High 58°, low 44°.
Pressure30.36 inHg
Wind16 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Mon, 1961° / 43°0
61 °
Harrietta, Monday, 19 October
Overcast. High 61°, low 43°.
Pressure30.39 inHg
Wind9.1 mph SW
Humidity60%
Visibility6.2 mi
Dew point43°
Tue, 2063° / 42°0
63 °
Harrietta, Tuesday, 20 October
Clear. High 63°, low 42°.
Pressure30.36 inHg
Wind4.7 mph NE
Humidity47%
Visibility—
Dew point40°
Wed, 2160° / 42°0
60 °
Harrietta, Wednesday, 21 October
Clear. High 60°, low 42°.
Pressure30.36 inHg
Wind8 mph SE
Humidity41%
Visibility—
Dew point34°
Thu, 2265° / 43°0
65 °
Harrietta, Thursday, 22 October
Clear. High 65°, low 43°.
Pressure30.24 inHg
Wind9.6 mph SW
Humidity49%
Visibility—
Dew point42°
Fri, 2367° / 54°0
67 °
Harrietta, Friday, 23 October
Overcast. High 67°, low 54°.
Pressure30.27 inHg
Wind8.3 mph SE
Humidity47%
Visibility—
Dew point44°
Sat, 2468° / 53°0
68 °
Harrietta, Saturday, 24 October
Overcast. High 68°, low 53°.
Pressure30.18 inHg
Wind12.8 mph S
Humidity41%
Visibility—
Dew point42°
Sun, 2561° / 47°0
61 °
Harrietta, Sunday, 25 October
Clear. High 61°, low 47°.
Pressure30.39 inHg
Wind12.8 mph W
Humidity39%
Visibility—
Dew point35°
Mon, 2660° / 42°0
60 °
Harrietta, Monday, 26 October
Overcast. High 60°, low 42°.
Pressure30.50 inHg
Wind4.4 mph N
Humidity31%
Visibility—
Dew point26°
Tue, 2764° / 48°0
64 °
Harrietta, Tuesday, 27 October
Overcast. High 64°, low 48°.
Pressure30.24 inHg
Wind12.1 mph S
Humidity47%
Visibility—
Dew point40°
Wed, 2864° / 53°0
64 °
Harrietta, Wednesday, 28 October
Overcast. High 64°, low 53°.
Pressure30.18 inHg
Wind12.9 mph SW
Humidity52%
Visibility—
Dew point45°
Thu, 2958° / 54°1.09
58 °
Harrietta, Thursday, 29 October
Rain. High 58°, low 54°.
Pressure29.88 inHg
Wind14 mph SW
Humidity80%
Visibility—
Dew point51°
Fri, 3052° / 42°0.01
52 °
Harrietta, Friday, 30 October
Light rain. High 52°, low 42°.
Pressure30.18 inHg
Wind11.6 mph W
Humidity39%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1241° / 30°0.08
41 °
Harrietta, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.08 in
Chance of precipitation32%
Record high60° (2012)
Record low10° (2019)
Fri, 1341° / 29°0.06
41 °
Harrietta, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation37%
Record high59° (1999)
Record low11° (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.