Monthly outlook for Union, MI: average high 63.4°, average low 49.4°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 13 October (79.3°), the coolest 18 October (30.9°).
63.4°/49.4°
Average high / low
+2.1°
Above normal
4 / 6
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
63.9°
60.7°
+1.8°
21 October – 30 October
62.4°
57.1°
+3°
31 October – 9 November
at normal
53.1°
—
October records over 66 years
87.1°6 October 1963All-time high
24.4°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Elkhart (8 mi).
Mon, 1279° / 61°0
79 °
Union, Monday, 12 October
Clear. High 79°, low 61°.
Pressure29.91 inHg
Wind7.9 mph SW
Humidity67%
Visibility6.2 mi
Dew point62°
Tue, 1379° / 62°0
79 °
Union, Tuesday, 13 October
Partly cloudy. High 79°, low 62°.
Pressure29.80 inHg
Wind12.1 mph W
Humidity63%
Visibility6.2 mi
Dew point64°
Wed, 1469° / 56°0.15
69 °
Union, Wednesday, 14 October
Rain. High 69°, low 56°.
Pressure30.06 inHg
Wind6 mph NE
Humidity69%
Visibility6.2 mi
Dew point56°
Thu, 1558° / 54°1.17
58 °
Union, Thursday, 15 October
Rain. High 58°, low 54°.
Pressure30.12 inHg
Wind10.8 mph E
Humidity95%
Visibility1.7 mi
Dew point55°
Fri, 1658° / 47°0.04
58 °
Union, Friday, 16 October
Light rain. High 58°, low 47°.
Pressure30.27 inHg
Wind20.9 mph N
Humidity52%
Visibility—
Dew point40°
Sat, 1749° / 36°0
49 °
Union, Saturday, 17 October
Partly cloudy. High 49°, low 36°.
Pressure30.53 inHg
Wind14.4 mph NW
Humidity44%
Visibility—
Dew point27°
Sun, 1854° / 31°0
54 °
Union, Sunday, 18 October
Clear. High 54°, low 31°.
Pressure30.47 inHg
Wind18.3 mph SW
Humidity40%
Visibility—
Dew point26°
Mon, 1963° / 41°0
63 °
Union, Monday, 19 October
Clear. High 63°, low 41°.
Pressure30.39 inHg
Wind15.7 mph SW
Humidity32%
Visibility—
Dew point29°
Tue, 2061° / 46°0
61 °
Union, Tuesday, 20 October
Overcast. High 61°, low 46°.
Pressure30.39 inHg
Wind8.8 mph S
Humidity36%
Visibility—
Dew point32°
Wed, 2167° / 50°0
67 °
Union, Wednesday, 21 October
Overcast. High 67°, low 50°.
Pressure30.27 inHg
Wind12.9 mph S
Humidity40%
Visibility—
Dew point38°
Thu, 2273° / 61°0
73 °
Union, Thursday, 22 October
Overcast. High 73°, low 61°.
Pressure30.27 inHg
Wind16 mph SW
Humidity56%
Visibility—
Dew point54°
Fri, 2365° / 58°0.12
65 °
Union, Friday, 23 October
Light rain. High 65°, low 58°.
Pressure30.15 inHg
Wind11.9 mph S
Humidity72%
Visibility—
Dew point53°
Sat, 2464° / 50°0.5
64 °
Union, Saturday, 24 October
Rain. High 64°, low 50°.
Pressure29.94 inHg
Wind16.4 mph SW
Humidity93%
Visibility—
Dew point56°
Sun, 2551° / 43°0
51 °
Union, Sunday, 25 October
Overcast. High 51°, low 43°.
Pressure30.09 inHg
Wind12.8 mph NW
Humidity57%
Visibility—
Dew point36°
Mon, 2654° / 41°0
54 °
Union, Monday, 26 October
Overcast. High 54°, low 41°.
Pressure29.88 inHg
Wind16.5 mph NW
Humidity50%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 42°0.09
56 °
Union, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation38%
Record high74° (1984)
Record low25° (1976)
Wed, 2856° / 41°0.09
56 °
Union, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.09 in
Chance of precipitation33%
Record high73° (1999)
Record low27° (1976)
Thu, 2955° / 41°0.05
55 °
Union, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.05 in
Chance of precipitation20%
Record high76° (2024)
Record low27° (1965)
Fri, 3057° / 42°0.09
57 °
Union, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2024)
Record low26° (1980)
Sat, 3156° / 43°0.13
56 °
Union, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation37%
Record high74° (1974)
Record low25° (1988)
Sun, 0155° / 42°0.16
55 °
Union, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.16 in
Chance of precipitation40%
Record high75° (2016)
Record low25° (2023)
Mon, 0255° / 41°0.13
55 °
Union, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation38%
Record high74° (1961)
Record low24° (2014)
Tue, 0353° / 40°0.06
53 °
Union, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.06 in
Chance of precipitation28%
Record high73° (1987)
Record low20° (1991)
Wed, 0453° / 41°0.09
53 °
Union, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high72° (2015)
Record low19° (1991)
Thu, 0553° / 40°0.1
53 °
Union, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (1978)
Record low18° (1991)
Fri, 0652° / 38°0.07
52 °
Union, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation32%
Record high74° (1975)
Record low26° (1967)
Sat, 0751° / 38°0.08
51 °
Union, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high68° (2020)
Record low22° (1993)
Sun, 0851° / 38°0.05
51 °
Union, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.05 in
Chance of precipitation25%
Record high74° (2020)
Record low23° (1971)
Mon, 0952° / 38°0.14
52 °
Union, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation37%
Record high74° (2020)
Record low19° (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 Union, 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 Union, 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.