Monthly outlook for Jenison, MI: average high 65.1°, average low 47.2°. That is 3.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 15 October (76°), the coolest 18 October (35.6°).
65.1°/47.2°
Average high / low
+3.4°
Above normal
3 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
67.6°
60.4°
+4°
18 October – 27 October
61°
56°
+2.8°
28 October – 6 November
at normal
52.6°
—
October records over 66 years
84°3 October 2025All-time high
23.9°19 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Wyoming (6 mi).
Fri, 0972° / 41°0.02
72 °
Jenison, Friday, 9 October
Light rain. High 72°, low 41°.
Pressure30.18 inHg
Wind4.1 mph S
Humidity60%
Visibility6.2 mi
Dew point51°
Sat, 1074° / 52°0
74 °
Jenison, Saturday, 10 October
Overcast. High 74°, low 52°.
Pressure30.15 inHg
Wind8.6 mph S
Humidity61%
Visibility6.2 mi
Dew point55°
Sun, 1170° / 56°0
70 °
Jenison, Sunday, 11 October
Overcast. High 70°, low 56°.
Pressure30.03 inHg
Wind5.5 mph SE
Humidity72%
Visibility6.2 mi
Dew point56°
Mon, 1272° / 54°0
72 °
Jenison, Monday, 12 October
Overcast. High 72°, low 54°.
Pressure29.85 inHg
Wind8.9 mph SW
Humidity80%
Visibility6.2 mi
Dew point60°
Tue, 1362° / 50°0.09
62 °
Jenison, Tuesday, 13 October
Light rain. High 62°, low 50°.
Pressure30.00 inHg
Wind9.6 mph N
Humidity60%
Visibility—
Dew point46°
Wed, 1467° / 44°0.01
67 °
Jenison, Wednesday, 14 October
Light rain. High 67°, low 44°.
Pressure30.06 inHg
Wind14.7 mph SE
Humidity52%
Visibility—
Dew point43°
Thu, 1576° / 59°0.33
76 °
Jenison, Thursday, 15 October
Rain. High 76°, low 59°.
Pressure29.94 inHg
Wind16 mph W
Humidity58%
Visibility—
Dew point59°
Fri, 1663° / 48°0
63 °
Jenison, Friday, 16 October
Overcast. High 63°, low 48°.
Pressure30.18 inHg
Wind18.1 mph NW
Humidity48%
Visibility—
Dew point42°
Sat, 1752° / 39°0
52 °
Jenison, Saturday, 17 October
Partly cloudy. High 52°, low 39°.
Pressure30.39 inHg
Wind15.4 mph NW
Humidity39%
Visibility—
Dew point27°
Sun, 1854° / 36°0
54 °
Jenison, Sunday, 18 October
Clear. High 54°, low 36°.
Pressure30.56 inHg
Wind5.8 mph W
Humidity39%
Visibility—
Dew point27°
Mon, 1957° / 38°0
57 °
Jenison, Monday, 19 October
Clear. High 57°, low 38°.
Pressure30.47 inHg
Wind9.8 mph SW
Humidity38%
Visibility—
Dew point29°
Tue, 2065° / 43°0
65 °
Jenison, Tuesday, 20 October
Overcast. High 65°, low 43°.
Pressure30.30 inHg
Wind9.2 mph S
Humidity30%
Visibility—
Dew point29°
Wed, 2160° / 50°0.18
60 °
Jenison, Wednesday, 21 October
Light rain. High 60°, low 50°.
Pressure30.09 inHg
Wind12.1 mph SW
Humidity76%
Visibility—
Dew point46°
Thu, 2263° / 50°0
63 °
Jenison, Thursday, 22 October
Light rain. High 63°, low 50°.
Pressure30.09 inHg
Wind12.1 mph W
Humidity58%
Visibility—
Dew point46°
Fri, 2367° / 50°0
67 °
Jenison, Friday, 23 October
Clear. High 67°, low 50°.
Pressure30.18 inHg
Wind9.4 mph W
Humidity48%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 44°0.1
56 °
Jenison, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.1 in
Chance of precipitation35%
Record high77° (1963)
Record low26° (1981)
Sun, 2555° / 42°0.1
55 °
Jenison, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.1 in
Chance of precipitation37%
Record high74° (2012)
Record low29° (1966)
Mon, 2655° / 42°0.11
55 °
Jenison, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.11 in
Chance of precipitation30%
Record high73° (1963)
Record low29° (1962)
Tue, 2754° / 42°0.09
54 °
Jenison, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.09 in
Chance of precipitation47%
Record high73° (2014)
Record low25° (1976)
Wed, 2854° / 41°0.07
54 °
Jenison, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1989)
Record low28° (1969)
Thu, 2953° / 41°0.06
53 °
Jenison, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.06 in
Chance of precipitation30%
Record high76° (2024)
Record low26° (1965)
Fri, 3055° / 40°0.09
55 °
Jenison, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation25%
Record high74° (1971)
Record low28° (1980)
Sat, 3154° / 42°0.13
54 °
Jenison, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.13 in
Chance of precipitation45%
Record high73° (1974)
Record low26° (1988)
Sun, 0153° / 42°0.15
53 °
Jenison, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.15 in
Chance of precipitation48%
Record high69° (1999)
Record low22° (2023)
Mon, 0252° / 40°0.14
52 °
Jenison, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.14 in
Chance of precipitation40%
Record high72° (1961)
Record low25° (2014)
Tue, 0351° / 40°0.07
51 °
Jenison, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.07 in
Chance of precipitation37%
Record high71° (1961)
Record low24° (1991)
Wed, 0451° / 40°0.1
51 °
Jenison, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.1 in
Chance of precipitation35%
Record high69° (2015)
Record low22° (1991)
Thu, 0551° / 39°0.13
51 °
Jenison, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation33%
Record high70° (1978)
Record low20° (1991)
Fri, 0651° / 38°0.11
51 °
Jenison, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high72° (1975)
Record low24° (1991)
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 Jenison, 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 Jenison, 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.