Monthly outlook for Riverdale, MI: average high 54.9°, average low 40°. That is 0.5° below the climate normal for October. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 October (67°), the coolest 23 October (29°).
54.9°/40°
Average high / low
−0.5°
Below normal
5 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
58.4°
56.8°
+0.9°
24 October – 2 November
49°
53.6°
-2.5°
3 November – 12 November
at normal
48.6°
—
October records over 66 years
85.1°3 October 2025All-time high
23.2°29 October 1967All-time low
Climate normals and records are computed from the nearest reference point — Crystal (9 mi).
Thu, 1557° / 50°0.11
57 °
Riverdale, Thursday, 15 October
Rain. High 57°, low 50°.
Pressure30.15 inHg
Wind8.7 mph E
Humidity76%
Visibility6.2 mi
Dew point47°
Fri, 1656° / 44°0.04
56 °
Riverdale, Friday, 16 October
Light rain. High 56°, low 44°.
Pressure29.83 inHg
Wind11.5 mph NW
Humidity74%
Visibility6.2 mi
Dew point47°
Sat, 1754° / 35°0
54 °
Riverdale, Saturday, 17 October
Clear. High 54°, low 35°.
Pressure30.47 inHg
Wind7.9 mph NW
Humidity53%
Visibility6.2 mi
Dew point33°
Sun, 1859° / 43°0
59 °
Riverdale, Sunday, 18 October
Clear. High 59°, low 43°.
Pressure30.39 inHg
Wind15.8 mph SW
Humidity56%
Visibility—
Dew point41°
Mon, 1962° / 42°0
62 °
Riverdale, Monday, 19 October
Clear. High 62°, low 42°.
Pressure30.39 inHg
Wind10.9 mph SW
Humidity47%
Visibility—
Dew point38°
Tue, 2063° / 43°0
63 °
Riverdale, Tuesday, 20 October
Clear. High 63°, low 43°.
Pressure30.27 inHg
Wind4 mph N
Humidity32%
Visibility—
Dew point30°
Wed, 2167° / 46°0.02
67 °
Riverdale, Wednesday, 21 October
Light rain. High 67°, low 46°.
Pressure30.03 inHg
Wind15.8 mph W
Humidity48%
Visibility—
Dew point44°
Thu, 2250° / 36°0.05
50 °
Riverdale, Thursday, 22 October
Light rain. High 50°, low 36°.
Pressure30.24 inHg
Wind16.5 mph N
Humidity40%
Visibility—
Dew point25°
Fri, 2350° / 29°0
50 °
Riverdale, Friday, 23 October
Clear. High 50°, low 29°.
Pressure30.42 inHg
Wind9.9 mph N
Humidity36%
Visibility—
Dew point19°
Sat, 2454° / 32°0
54 °
Riverdale, Saturday, 24 October
Partly cloudy. High 54°, low 32°.
Pressure30.21 inHg
Wind7 mph W
Humidity30%
Visibility—
Dew point19°
Sun, 2547° / 38°0.15
47 °
Riverdale, Sunday, 25 October
Light rain. High 47°, low 38°.
Pressure29.83 inHg
Wind14.8 mph NW
Humidity87%
Visibility—
Dew point43°
Mon, 2647° / 34°0
47 °
Riverdale, Monday, 26 October
Light rain. High 47°, low 34°.
Pressure29.94 inHg
Wind14.8 mph NW
Humidity44%
Visibility—
Dew point24°
Tue, 2749° / 32°0
49 °
Riverdale, Tuesday, 27 October
Mostly clear. High 49°, low 32°.
Pressure29.97 inHg
Wind11.6 mph NW
Humidity47%
Visibility—
Dew point27°
Wed, 2847° / 42°0
47 °
Riverdale, Wednesday, 28 October
Overcast. High 47°, low 42°.
Pressure29.97 inHg
Wind9.2 mph NW
Humidity56%
Visibility—
Dew point31°
Thu, 2950° / 42°0
50 °
Riverdale, Thursday, 29 October
Overcast. High 50°, low 42°.
Pressure30.00 inHg
Wind6.3 mph N
Humidity51%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3054° / 38°0.08
54 °
Riverdale, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high74° (2024)
Record low26° (1966)
Sat, 3153° / 41°0.11
53 °
Riverdale, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (1974)
Record low25° (2020)
Sun, 0153° / 40°0.13
53 °
Riverdale, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.13 in
Chance of precipitation37%
Record high70° (1999)
Record low25° (2023)
Mon, 0252° / 39°0.15
52 °
Riverdale, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.15 in
Chance of precipitation42%
Record high71° (1961)
Record low25° (2014)
Tue, 0351° / 38°0.07
51 °
Riverdale, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1961)
Record low22° (1991)
Wed, 0451° / 38°0.08
51 °
Riverdale, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (2015)
Record low19° (1991)
Thu, 0551° / 38°0.12
51 °
Riverdale, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation30%
Record high71° (1978)
Record low18° (1966)
Fri, 0650° / 36°0.11
50 °
Riverdale, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (1975)
Record low22° (1991)
Sat, 0749° / 36°0.04
49 °
Riverdale, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2020)
Record low16° (1991)
Sun, 0849° / 36°0.04
49 °
Riverdale, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation22%
Record high71° (2020)
Record low13° (1991)
Mon, 0949° / 36°0.1
49 °
Riverdale, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation35%
Record high74° (2020)
Record low17° (1991)
Tue, 1048° / 35°0.11
48 °
Riverdale, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (2020)
Record low17° (2017)
Wed, 1146° / 33°0.09
46 °
Riverdale, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation37%
Record high66° (2012)
Record low19° (2017)
Thu, 1244° / 32°0.06
44 °
Riverdale, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1964)
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 Riverdale, 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 Riverdale, 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.