Monthly outlook for Santiago, MI: average high 57°, average low 45.5°. That is 4° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 25 October (67.1°), the coolest 31 October (41.4°).
57°/45.5°
Average high / low
+4°
Above normal
2 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
59.4°
51°
+4.6°
4 November – 13 November
53.1°
46.2°
+3.8°
14 November – 23 November
at normal
41.8°
—
October records over 66 years
84.4°8 October 2007All-time high
25.7°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Omer (9 mi).
Mon, 2657° / 46°0
57 °
Santiago, Monday, 26 October
Overcast. High 57°, low 46°.
Pressure30.39 inHg
Wind4.6 mph N
Humidity68%
Visibility6.2 mi
Dew point41°
Tue, 2752° / 42°0
52 °
Santiago, Tuesday, 27 October
Overcast. High 52°, low 42°.
Pressure30.45 inHg
Wind8.3 mph SE
Humidity63%
Visibility6.2 mi
Dew point39°
Wed, 2863° / 44°0
63 °
Santiago, Wednesday, 28 October
Overcast. High 63°, low 44°.
Pressure30.27 inHg
Wind6.4 mph S
Humidity74%
Visibility6.2 mi
Dew point49°
Thu, 2966° / 49°0.28
66 °
Santiago, Thursday, 29 October
Rain. High 66°, low 49°.
Pressure30.03 inHg
Wind8.9 mph SW
Humidity72%
Visibility6.2 mi
Dew point52°
Fri, 3060° / 44°0
60 °
Santiago, Friday, 30 October
Mostly clear. High 60°, low 44°.
Pressure30.15 inHg
Wind7.4 mph W
Humidity66%
Visibility—
Dew point46°
Sat, 3154° / 41°0
54 °
Santiago, Saturday, 31 October
Overcast. High 54°, low 41°.
Pressure30.33 inHg
Wind7.2 mph W
Humidity53%
Visibility—
Dew point35°
Sun, 0160° / 49°0.03
60 °
Santiago, Sunday, 1 November
Light rain. High 60°, low 49°.
Pressure30.21 inHg
Wind9.6 mph S
Humidity47%
Visibility—
Dew point38°
Mon, 0258° / 51°0
58 °
Santiago, Monday, 2 November
Overcast. High 58°, low 51°.
Pressure30.21 inHg
Wind10 mph NE
Humidity73%
Visibility—
Dew point48°
Tue, 0356° / 49°0
56 °
Santiago, Tuesday, 3 November
Clear. High 56°, low 49°.
Pressure30.30 inHg
Wind12.7 mph NE
Humidity65%
Visibility—
Dew point44°
Wed, 0454° / 44°0
54 °
Santiago, Wednesday, 4 November
Clear. High 54°, low 44°.
Pressure30.15 inHg
Wind8.8 mph SE
Humidity66%
Visibility—
Dew point41°
Thu, 0555° / 46°0
55 °
Santiago, Thursday, 5 November
Overcast. High 55°, low 46°.
Pressure29.88 inHg
Wind8.5 mph N
Humidity77%
Visibility—
Dew point47°
Fri, 0651° / 42°0.01
51 °
Santiago, Friday, 6 November
Light rain. High 51°, low 42°.
Pressure30.00 inHg
Wind6.2 mph N
Humidity77%
Visibility—
Dew point41°
Sat, 0751° / 44°0
51 °
Santiago, Saturday, 7 November
Overcast. High 51°, low 44°.
Pressure29.94 inHg
Wind11.7 mph SE
Humidity60%
Visibility—
Dew point37°
Sun, 0857° / 49°0.36
57 °
Santiago, Sunday, 8 November
Rain. High 57°, low 49°.
Pressure29.47 inHg
Wind15.3 mph W
Humidity63%
Visibility—
Dew point44°
Mon, 0950° / 42°0.03
50 °
Santiago, Monday, 9 November
Light rain. High 50°, low 42°.
Pressure29.32 inHg
Wind10.2 mph SW
Humidity57%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1046° / 37°0.09
46 °
Santiago, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation32%
Record high70° (2020)
Record low14° (2017)
Wed, 1144° / 35°0.08
44 °
Santiago, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (2020)
Record low20° (2019)
Thu, 1243° / 33°0.04
43 °
Santiago, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high62° (1964)
Record low12° (2019)
Fri, 1343° / 33°0.04
43 °
Santiago, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high57° (2005)
Record low6° (2019)
Sat, 1443° / 34°0.04
43 °
Santiago, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1994)
Record low17° (1986)
Sun, 1543° / 34°0.09
43 °
Santiago, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.09 in
Chance of precipitation28%
Record high61° (2025)
Record low19° (1967)
Mon, 1642° / 33°0.06
42 °
Santiago, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high58° (2023)
Record low19° (2019)
Tue, 1743° / 34°0.06
43 °
Santiago, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high58° (2021)
Record low20° (2014)
Wed, 1843° / 33°0.06
43 °
Santiago, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high60° (2016)
Record low17° (1989)
Thu, 1943° / 33°0.06
43 °
Santiago, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.06 in
Chance of precipitation35%
Record high59° (2020)
Record low15° (2014)
Fri, 2042° / 32°0.1
42 °
Santiago, Friday, 20 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.1 in
Chance of precipitation37%
Record high60° (2020)
Record low15° (2022)
Sat, 2140° / 31°0.06
40 °
Santiago, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high40°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high53° (1977)
Record low10° (2014)
Sun, 2240° / 31°0.04
40 °
Santiago, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high56° (1963)
Record low11° (2018)
Mon, 2341° / 31°0.08
41 °
Santiago, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.08 in
Chance of precipitation32%
Record high57° (1963)
Record low17° (2000)
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 Santiago, 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 Santiago, 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.