Monthly outlook for Rattle Run, MI: average high 60.4°, average low 45.4°. That is 4.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 2 November (66.4°), the coolest 6 November (36.6°).
60.4°/45.4°
Average high / low
+4.4°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
63.5°
54°
+5.3°
3 November – 12 November
55.4°
49.3°
+3.4°
13 November – 22 November
at normal
44.5°
—
October records over 66 years
85.3°8 October 2007All-time high
25.3°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — St. Clair (6 mi).
Sun, 2565° / 39°0
65 °
Rattle Run, Sunday, 25 October
Overcast. High 65°, low 39°.
Pressure30.45 inHg
Wind6.2 mph S
Humidity67%
Visibility6.2 mi
Dew point50°
Mon, 2660° / 43°0
60 °
Rattle Run, Monday, 26 October
Overcast. High 60°, low 43°.
Pressure30.33 inHg
Wind5.5 mph NE
Humidity79%
Visibility6.2 mi
Dew point51°
Tue, 2756° / 42°0
56 °
Rattle Run, Tuesday, 27 October
Overcast. High 56°, low 42°.
Pressure30.42 inHg
Wind5.3 mph E
Humidity55%
Visibility6.2 mi
Dew point36°
Wed, 2862° / 43°0
62 °
Rattle Run, Wednesday, 28 October
Overcast. High 62°, low 43°.
Pressure30.30 inHg
Wind7.6 mph S
Humidity78%
Visibility6.2 mi
Dew point49°
Thu, 2965° / 53°0.28
65 °
Rattle Run, Thursday, 29 October
Rain. High 65°, low 53°.
Pressure30.09 inHg
Wind8.9 mph SW
Humidity73%
Visibility—
Dew point55°
Fri, 3062° / 46°0
62 °
Rattle Run, Friday, 30 October
Partly cloudy. High 62°, low 46°.
Pressure30.27 inHg
Wind6.9 mph NE
Humidity59%
Visibility—
Dew point46°
Sat, 3166° / 54°0
66 °
Rattle Run, Saturday, 31 October
Overcast. High 66°, low 54°.
Pressure30.15 inHg
Wind10.9 mph S
Humidity45%
Visibility—
Dew point43°
Sun, 0166° / 58°0.23
66 °
Rattle Run, Sunday, 1 November
Light rain. High 66°, low 58°.
Pressure29.88 inHg
Wind20.5 mph S
Humidity83%
Visibility—
Dew point53°
Mon, 0266° / 52°0.01
66 °
Rattle Run, Monday, 2 November
Light rain. High 66°, low 52°.
Pressure29.91 inHg
Wind19.3 mph W
Humidity54%
Visibility—
Dew point48°
Tue, 0358° / 44°0
58 °
Rattle Run, Tuesday, 3 November
Overcast. High 58°, low 44°.
Pressure30.21 inHg
Wind11.4 mph NE
Humidity45%
Visibility—
Dew point35°
Wed, 0454° / 44°0.35
54 °
Rattle Run, Wednesday, 4 November
Rain. High 54°, low 44°.
Pressure29.71 inHg
Wind15.2 mph W
Humidity91%
Visibility—
Dew point47°
Thu, 0554° / 44°0.01
54 °
Rattle Run, Thursday, 5 November
Light rain. High 54°, low 44°.
Pressure29.83 inHg
Wind19.6 mph W
Humidity60%
Visibility—
Dew point38°
Fri, 0649° / 37°0
49 °
Rattle Run, Friday, 6 November
Overcast. High 49°, low 37°.
Pressure30.03 inHg
Wind10.7 mph S
Humidity52%
Visibility—
Dew point31°
Sat, 0765° / 50°0
65 °
Rattle Run, Saturday, 7 November
Overcast. High 65°, low 50°.
Pressure29.53 inHg
Wind25.7 mph W
Humidity61%
Visibility—
Dew point48°
Sun, 0853° / 41°0
53 °
Rattle Run, Sunday, 8 November
Light rain. High 53°, low 41°.
Pressure29.68 inHg
Wind24.4 mph NW
Humidity48%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0950° / 38°0.1
50 °
Rattle Run, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (1999)
Record low23° (1991)
Tue, 1049° / 38°0.13
49 °
Rattle Run, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation32%
Record high70° (2020)
Record low19° (2017)
Wed, 1147° / 37°0.13
47 °
Rattle Run, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.13 in
Chance of precipitation37%
Record high68° (2020)
Record low21° (2017)
Thu, 1245° / 35°0.07
45 °
Rattle Run, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.07 in
Chance of precipitation32%
Record high65° (1964)
Record low13° (2019)
Fri, 1345° / 34°0.06
45 °
Rattle Run, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (2005)
Record low0° (2019)
Sat, 1445° / 35°0.09
45 °
Rattle Run, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high60° (1973)
Record low17° (1986)
Sun, 1546° / 35°0.15
46 °
Rattle Run, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.15 in
Chance of precipitation38%
Record high63° (2001)
Record low19° (1967)
Mon, 1645° / 34°0.08
45 °
Rattle Run, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.08 in
Chance of precipitation23%
Record high61° (1988)
Record low13° (1967)
Tue, 1745° / 34°0.08
45 °
Rattle Run, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.08 in
Chance of precipitation33%
Record high61° (1963)
Record low19° (2019)
Wed, 1846° / 35°0.09
46 °
Rattle Run, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.09 in
Chance of precipitation27%
Record high64° (2016)
Record low17° (2014)
Thu, 1945° / 35°0.09
45 °
Rattle Run, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.09 in
Chance of precipitation38%
Record high61° (1991)
Record low15° (2014)
Fri, 2044° / 34°0.13
44 °
Rattle Run, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.13 in
Chance of precipitation37%
Record high64° (1985)
Record low17° (2022)
Sat, 2143° / 33°0.09
43 °
Rattle Run, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.09 in
Chance of precipitation35%
Record high57° (1992)
Record low12° (2014)
Sun, 2242° / 32°0.09
42 °
Rattle Run, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.09 in
Chance of precipitation28%
Record high61° (1999)
Record low17° (2018)
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 Rattle Run, 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 Rattle Run, 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.