Monthly outlook for Byron, MI: average high 62.3°, average low 46.9°. That is 2.2° above the climate normal for October. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (79.8°), the coolest 18 October (25.2°).
62.3°/46.9°
Average high / low
+2.2°
Above normal
7 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
63.8°
59.2°
+2.5°
20 October – 29 October
59.8°
55.6°
+2.3°
30 October – 8 November
at normal
51.9°
—
October records over 66 years
85.5°7 October 2007All-time high
22.1°29 October 1967All-time low
Climate normals and records are computed from the nearest reference point — Durand (6 mi).
Sun, 1169° / 50°0.1
69 °
Byron, Sunday, 11 October
Rain. High 69°, low 50°.
Pressure29.97 inHg
Wind7.1 mph E
Humidity82%
Visibility6.2 mi
Dew point57°
Mon, 1280° / 55°0.08
80 °
Byron, Monday, 12 October
Rain. High 80°, low 55°.
Pressure29.85 inHg
Wind9.4 mph SW
Humidity67%
Visibility6.2 mi
Dew point60°
Tue, 1377° / 59°0.18
77 °
Byron, Tuesday, 13 October
Light rain. High 77°, low 59°.
Pressure29.71 inHg
Wind10.9 mph W
Humidity72%
Visibility6.2 mi
Dew point64°
Wed, 1461° / 56°0
61 °
Byron, Wednesday, 14 October
Overcast. High 61°, low 56°.
Pressure30.09 inHg
Wind8.1 mph N
Humidity70%
Visibility—
Dew point51°
Thu, 1559° / 48°0.04
59 °
Byron, Thursday, 15 October
Light rain. High 59°, low 48°.
Pressure30.36 inHg
Wind12.7 mph SE
Humidity46%
Visibility—
Dew point37°
Fri, 1664° / 51°0.06
64 °
Byron, Friday, 16 October
Light rain. High 64°, low 51°.
Pressure29.68 inHg
Wind21.8 mph W
Humidity74%
Visibility—
Dew point53°
Sat, 1749° / 34°0.05
49 °
Byron, Saturday, 17 October
Light rain. High 49°, low 34°.
Pressure30.00 inHg
Wind21.2 mph NW
Humidity64%
Visibility—
Dew point31°
Sun, 1848° / 25°0
48 °
Byron, Sunday, 18 October
Mostly clear. High 48°, low 25°.
Pressure30.42 inHg
Wind9.1 mph NW
Humidity35%
Visibility—
Dew point18°
Mon, 1957° / 33°0
57 °
Byron, Monday, 19 October
Clear. High 57°, low 33°.
Pressure30.39 inHg
Wind9.2 mph SW
Humidity36%
Visibility—
Dew point27°
Tue, 2057° / 41°0
57 °
Byron, Tuesday, 20 October
Overcast. High 57°, low 41°.
Pressure30.39 inHg
Wind11.7 mph SE
Humidity53%
Visibility—
Dew point34°
Wed, 2165° / 41°0
65 °
Byron, Wednesday, 21 October
Overcast. High 65°, low 41°.
Pressure30.18 inHg
Wind14.7 mph S
Humidity40%
Visibility—
Dew point37°
Thu, 2258° / 54°0.6
58 °
Byron, Thursday, 22 October
Rain. High 58°, low 54°.
Pressure29.85 inHg
Wind16.6 mph SE
Humidity89%
Visibility—
Dew point53°
Fri, 2363° / 53°0.03
63 °
Byron, Friday, 23 October
Light rain. High 63°, low 53°.
Pressure29.88 inHg
Wind7.9 mph W
Humidity86%
Visibility—
Dew point55°
Sat, 2465° / 51°0
65 °
Byron, Saturday, 24 October
Overcast. High 65°, low 51°.
Pressure29.80 inHg
Wind17.9 mph SW
Humidity60%
Visibility—
Dew point49°
Sun, 2551° / 45°0.03
51 °
Byron, Sunday, 25 October
Light rain. High 51°, low 45°.
Pressure29.91 inHg
Wind14.7 mph W
Humidity49%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2655° / 41°0.09
55 °
Byron, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.09 in
Chance of precipitation25%
Record high76° (1963)
Record low27° (1962)
Tue, 2754° / 41°0.1
54 °
Byron, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.1 in
Chance of precipitation35%
Record high75° (2023)
Record low27° (1976)
Wed, 2854° / 40°0.06
54 °
Byron, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1989)
Record low24° (1967)
Thu, 2953° / 40°0.06
53 °
Byron, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.06 in
Chance of precipitation18%
Record high75° (2024)
Record low22° (1967)
Fri, 3055° / 40°0.08
55 °
Byron, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (2024)
Record low28° (1988)
Sat, 3155° / 41°0.11
55 °
Byron, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high72° (2024)
Record low26° (1988)
Sun, 0153° / 41°0.12
53 °
Byron, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.12 in
Chance of precipitation45%
Record high73° (2016)
Record low25° (2023)
Mon, 0253° / 40°0.17
53 °
Byron, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.17 in
Chance of precipitation43%
Record high71° (1961)
Record low25° (2014)
Tue, 0351° / 39°0.08
51 °
Byron, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.08 in
Chance of precipitation30%
Record high73° (1987)
Record low23° (1991)
Wed, 0452° / 39°0.06
52 °
Byron, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation27%
Record high73° (2015)
Record low20° (1991)
Thu, 0551° / 39°0.12
51 °
Byron, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation32%
Record high72° (1978)
Record low20° (1991)
Fri, 0651° / 37°0.08
51 °
Byron, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.08 in
Chance of precipitation32%
Record high72° (1975)
Record low25° (1991)
Sat, 0749° / 37°0.07
49 °
Byron, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high68° (2020)
Record low22° (1991)
Sun, 0849° / 37°0.03
49 °
Byron, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.03 in
Chance of precipitation23%
Record high72° (2020)
Record low18° (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 Byron, 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 Byron, 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.