Monthly outlook for Tustin, MI: average high 58.8°, average low 44.6°. That is 2.5° above the climate normal for October. Precipitation is expected on 5 days (about 2.7 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 12 October (75.4°), the coolest 25 October (32°).
58.8°/44.6°
Average high / low
+2.5°
Above normal
5 / 7
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
62.2°
55.2°
+3.8°
21 October – 30 October
53.3°
51.8°
+0.8°
31 October – 9 November
at normal
47.5°
—
October records over 66 years
83.5°7 October 2007All-time high
22.8°19 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Cadillac (10 mi).
Mon, 1275° / 57°0
75 °
Tustin, Monday, 12 October
Mostly clear. High 75°, low 57°.
Pressure29.83 inHg
Wind6.8 mph SW
Humidity73%
Visibility6.2 mi
Dew point59°
Tue, 1371° / 58°0.25
71 °
Tustin, Tuesday, 13 October
Rain. High 71°, low 58°.
Pressure29.71 inHg
Wind9.7 mph W
Humidity94%
Visibility6.2 mi
Dew point65°
Wed, 1461° / 52°0
61 °
Tustin, Wednesday, 14 October
Overcast. High 61°, low 52°.
Pressure30.09 inHg
Wind8.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point47°
Thu, 1554° / 46°0.19
54 °
Tustin, Thursday, 15 October
Light rain. High 54°, low 46°.
Pressure30.21 inHg
Wind6.7 mph SE
Humidity88%
Visibility6.2 mi
Dew point46°
Fri, 1653° / 43°0.26
53 °
Tustin, Friday, 16 October
Light rain. High 53°, low 43°.
Pressure30.18 inHg
Wind22.6 mph N
Humidity64%
Visibility—
Dew point38°
Sat, 1753° / 36°0
53 °
Tustin, Saturday, 17 October
Clear. High 53°, low 36°.
Pressure30.39 inHg
Wind11.6 mph W
Humidity42%
Visibility—
Dew point28°
Sun, 1855° / 37°0
55 °
Tustin, Sunday, 18 October
Overcast. High 55°, low 37°.
Pressure30.24 inHg
Wind23.1 mph SW
Humidity38%
Visibility—
Dew point28°
Mon, 1964° / 46°0
64 °
Tustin, Monday, 19 October
Overcast. High 64°, low 46°.
Pressure30.24 inHg
Wind16.6 mph SW
Humidity34%
Visibility—
Dew point33°
Tue, 2066° / 49°0
66 °
Tustin, Tuesday, 20 October
Overcast. High 66°, low 49°.
Pressure30.21 inHg
Wind9.7 mph S
Humidity56%
Visibility—
Dew point47°
Wed, 2171° / 50°0
71 °
Tustin, Wednesday, 21 October
Overcast. High 71°, low 50°.
Pressure30.06 inHg
Wind16.6 mph S
Humidity53%
Visibility—
Dew point49°
Thu, 2261° / 47°1.96
61 °
Tustin, Thursday, 22 October
Heavy rain. High 61°, low 47°.
Pressure29.53 inHg
Wind17.9 mph S
Humidity94%
Visibility—
Dew point57°
Fri, 2344° / 41°0.06
44 °
Tustin, Friday, 23 October
Light rain. High 44°, low 41°.
Pressure29.83 inHg
Wind14.9 mph NW
Humidity66%
Visibility—
Dew point33°
Sat, 2447° / 35°0
47 °
Tustin, Saturday, 24 October
Overcast. High 47°, low 35°.
Pressure30.06 inHg
Wind14.4 mph N
Humidity46%
Visibility—
Dew point26°
Sun, 2547° / 32°0
47 °
Tustin, Sunday, 25 October
Overcast. High 47°, low 32°.
Pressure29.88 inHg
Wind5.3 mph NE
Humidity33%
Visibility—
Dew point17°
Mon, 2650° / 34°0
50 °
Tustin, Monday, 26 October
Mostly clear. High 50°, low 34°.
Pressure29.94 inHg
Wind9 mph N
Humidity57%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2751° / 38°0.09
51 °
Tustin, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation47%
Record high69° (1971)
Record low25° (1976)
Wed, 2850° / 38°0.07
50 °
Tustin, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.07 in
Chance of precipitation32%
Record high66° (1989)
Record low27° (1965)
Thu, 2949° / 37°0.07
49 °
Tustin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation32%
Record high71° (2024)
Record low25° (1965)
Fri, 3051° / 37°0.09
51 °
Tustin, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2024)
Record low25° (1988)
Sat, 3151° / 38°0.1
51 °
Tustin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.1 in
Chance of precipitation47%
Record high67° (1979)
Record low24° (2020)
Sun, 0149° / 38°0.13
49 °
Tustin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation43%
Record high68° (1990)
Record low25° (2023)
Mon, 0249° / 36°0.13
49 °
Tustin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation45%
Record high68° (1961)
Record low24° (1984)
Tue, 0348° / 36°0.09
48 °
Tustin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation42%
Record high68° (1961)
Record low18° (1989)
Wed, 0447° / 36°0.1
47 °
Tustin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.1 in
Chance of precipitation38%
Record high68° (2015)
Record low18° (1991)
Thu, 0548° / 36°0.12
48 °
Tustin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.12 in
Chance of precipitation43%
Record high67° (1978)
Record low20° (1991)
Fri, 0647° / 34°0.14
47 °
Tustin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.14 in
Chance of precipitation37%
Record high68° (1975)
Record low16° (1991)
Sat, 0746° / 34°0.04
46 °
Tustin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (2020)
Record low12° (1991)
Sun, 0846° / 33°0.07
46 °
Tustin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high69° (2020)
Record low12° (1991)
Mon, 0945° / 33°0.11
45 °
Tustin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation50%
Record high69° (2020)
Record low17° (1995)
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 Tustin, 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 Tustin, 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.