Monthly outlook for Jenison, MI: average high 68.3°, average low 49.8°. That is 5.1° above the climate normal for October. Precipitation is expected on 6 days (about 0.5 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 15 October (83.8°), the coolest 14 October (39.8°).
68.3°/49.8°
Average high / low
+5.1°
Above normal
6 / 6
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
70.1°
60.4°
+5.4°
18 October – 27 October
65.2°
56°
+5.1°
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, 0970° / 46°0.01
70 °
Jenison, Friday, 9 October
Light rain. High 70°, low 46°.
Pressure30.21 inHg
Wind4.7 mph S
Humidity59%
Visibility6.2 mi
Dew point50°
Sat, 1078° / 53°0
78 °
Jenison, Saturday, 10 October
Clear. High 78°, low 53°.
Pressure30.15 inHg
Wind8.9 mph S
Humidity57%
Visibility6.2 mi
Dew point56°
Sun, 1172° / 57°0
72 °
Jenison, Sunday, 11 October
Clear. High 72°, low 57°.
Pressure30.06 inHg
Wind6.3 mph SE
Humidity66%
Visibility6.2 mi
Dew point56°
Mon, 1273° / 52°0
73 °
Jenison, Monday, 12 October
Overcast. High 73°, low 52°.
Pressure29.85 inHg
Wind9.7 mph SW
Humidity65%
Visibility—
Dew point58°
Tue, 1366° / 48°0.05
66 °
Jenison, Tuesday, 13 October
Light rain. High 66°, low 48°.
Pressure29.83 inHg
Wind14.9 mph SW
Humidity68%
Visibility—
Dew point53°
Wed, 1461° / 40°0
61 °
Jenison, Wednesday, 14 October
Overcast. High 61°, low 40°.
Pressure30.15 inHg
Wind10.1 mph SE
Humidity41%
Visibility—
Dew point33°
Thu, 1584° / 53°0.09
84 °
Jenison, Thursday, 15 October
Light rain. High 84°, low 53°.
Pressure29.83 inHg
Wind20.2 mph SW
Humidity43%
Visibility—
Dew point55°
Fri, 1673° / 54°0.13
73 °
Jenison, Friday, 16 October
Light rain. High 73°, low 54°.
Pressure30.00 inHg
Wind20.8 mph SW
Humidity40%
Visibility—
Dew point42°
Sat, 1757° / 45°0
57 °
Jenison, Saturday, 17 October
Overcast. High 57°, low 45°.
Pressure30.45 inHg
Wind11.6 mph N
Humidity44%
Visibility—
Dew point32°
Sun, 1861° / 47°0
61 °
Jenison, Sunday, 18 October
Overcast. High 61°, low 47°.
Pressure30.24 inHg
Wind9.3 mph E
Humidity52%
Visibility—
Dew point41°
Mon, 1959° / 46°0.14
59 °
Jenison, Monday, 19 October
Light rain. High 59°, low 46°.
Pressure30.24 inHg
Wind5.2 mph S
Humidity75%
Visibility—
Dew point46°
Tue, 2059° / 53°0.06
59 °
Jenison, Tuesday, 20 October
Light rain. High 59°, low 53°.
Pressure30.09 inHg
Wind6.7 mph E
Humidity89%
Visibility—
Dew point53°
Wed, 2166° / 52°0
66 °
Jenison, Wednesday, 21 October
Overcast. High 66°, low 52°.
Pressure29.97 inHg
Wind8.2 mph W
Humidity48%
Visibility—
Dew point44°
Thu, 2269° / 48°0.01
69 °
Jenison, Thursday, 22 October
Light rain. High 69°, low 48°.
Pressure29.80 inHg
Wind15.3 mph S
Humidity52%
Visibility—
Dew point47°
Fri, 2377° / 58°0.06
77 °
Jenison, Friday, 23 October
Light rain. High 77°, low 58°.
Pressure29.83 inHg
Wind14 mph S
Humidity57%
Visibility—
Dew point57°
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.