Monthly outlook for Mastodon, MI: average high 51.2°, average low 33°. That is 2° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 21 October (68.1°), the coolest 28 October (20.8°).
51.2°/33°
Average high / low
+2°
Above normal
2 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
52.4°
49.1°
+1.8°
30 October – 8 November
49.2°
44.3°
+2.7°
9 November – 18 November
at normal
38.4°
—
October records over 66 years
84.2°1 October 2023All-time high
12.6°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Alpha (2 mi).
Wed, 2168° / 33°0
68 °
Mastodon, Wednesday, 21 October
Overcast. High 68°, low 33°.
Pressure30.15 inHg
Wind7.8 mph W
Humidity53%
Visibility6.2 mi
Dew point45°
Thu, 2257° / 38°0
57 °
Mastodon, Thursday, 22 October
Partly cloudy. High 57°, low 38°.
Pressure30.39 inHg
Wind3.9 mph SE
Humidity70%
Visibility6.2 mi
Dew point42°
Fri, 2361° / 38°0
61 °
Mastodon, Friday, 23 October
Clear. High 61°, low 38°.
Pressure30.33 inHg
Wind6.2 mph S
Humidity67%
Visibility6.2 mi
Dew point45°
Sat, 2460° / 43°0
60 °
Mastodon, Saturday, 24 October
Overcast. High 60°, low 43°.
Pressure30.27 inHg
Wind11.8 mph S
Humidity57%
Visibility—
Dew point43°
Sun, 2558° / 44°0
58 °
Mastodon, Sunday, 25 October
Overcast. High 58°, low 44°.
Pressure30.24 inHg
Wind13 mph W
Humidity78%
Visibility—
Dew point50°
Mon, 2644° / 33°0
44 °
Mastodon, Monday, 26 October
Overcast. High 44°, low 33°.
Pressure30.33 inHg
Wind10.7 mph W
Humidity44%
Visibility—
Dew point20°
Tue, 2733° / 24°0.01
33 °
Mastodon, Tuesday, 27 October
Light snow. High 33°, low 24°.
Pressure30.30 inHg
Wind13.8 mph NW
Humidity47%
Visibility—
Dew point14°
Wed, 2836° / 21°0
36 °
Mastodon, Wednesday, 28 October
Partly cloudy. High 36°, low 21°.
Pressure30.33 inHg
Wind10.9 mph W
Humidity40%
Visibility—
Dew point11°
Thu, 2942° / 25°0
42 °
Mastodon, Thursday, 29 October
Mostly clear. High 42°, low 25°.
Pressure30.12 inHg
Wind10.2 mph W
Humidity45%
Visibility—
Dew point19°
Fri, 3047° / 26°0
47 °
Mastodon, Friday, 30 October
Overcast. High 47°, low 26°.
Pressure29.97 inHg
Wind8 mph W
Humidity33%
Visibility—
Dew point16°
Sat, 3148° / 29°0
48 °
Mastodon, Saturday, 31 October
Overcast. High 48°, low 29°.
Pressure30.15 inHg
Wind7.4 mph S
Humidity39%
Visibility—
Dew point21°
Sun, 0161° / 38°0
61 °
Mastodon, Sunday, 1 November
Overcast. High 61°, low 38°.
Pressure30.00 inHg
Wind7.9 mph SW
Humidity60%
Visibility—
Dew point44°
Mon, 0245° / 42°1.04
45 °
Mastodon, Monday, 2 November
Rain. High 45°, low 42°.
Pressure30.03 inHg
Wind9.2 mph N
Humidity95%
Visibility—
Dew point43°
Tue, 0345° / 34°0.11
45 °
Mastodon, Tuesday, 3 November
Light rain. High 45°, low 34°.
Pressure30.00 inHg
Wind11.1 mph N
Humidity63%
Visibility—
Dew point32°
Wed, 0449° / 31°0
49 °
Mastodon, Wednesday, 4 November
Mostly clear. High 49°, low 31°.
Pressure30.06 inHg
Wind4.4 mph NW
Humidity47%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0544° / 32°0.09
44 °
Mastodon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (1975)
Record low13° (1991)
Fri, 0643° / 31°0.06
43 °
Mastodon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high70° (2020)
Record low6° (1991)
Sat, 0742° / 29°0.03
42 °
Mastodon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2020)
Record low3° (1991)
Sun, 0842° / 29°0.05
42 °
Mastodon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.05 in
Chance of precipitation27%
Record high67° (2020)
Record low4° (1991)
Mon, 0942° / 29°0.08
42 °
Mastodon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.08 in
Chance of precipitation38%
Record high68° (2020)
Record low11° (2017)
Tue, 1040° / 29°0.12
40 °
Mastodon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.12 in
Chance of precipitation37%
Record high65° (2022)
Record low6° (2017)
Wed, 1138° / 27°0.08
38 °
Mastodon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.08 in
Chance of precipitation37%
Record high61° (1964)
Record low1° (1979)
Thu, 1237° / 25°0.09
37 °
Mastodon, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.09 in
Chance of precipitation32%
Record high54° (2005)
Record low5° (1986)
Fri, 1337° / 25°0.06
37 °
Mastodon, Friday, 13 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation25%
Record high62° (1999)
Record low0° (1986)
Sat, 1438° / 26°0.03
38 °
Mastodon, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.03 in
Chance of precipitation23%
Record high59° (2001)
Record low8° (1986)
Sun, 1538° / 27°0.04
38 °
Mastodon, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.04 in
Chance of precipitation27%
Record high61° (2001)
Record low6° (2014)
Mon, 1638° / 26°0.06
38 °
Mastodon, Monday, 16 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high60° (2023)
Record low12° (2014)
Tue, 1738° / 26°0.07
38 °
Mastodon, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.07 in
Chance of precipitation25%
Record high59° (2001)
Record low3° (2014)
Wed, 1838° / 25°0.06
38 °
Mastodon, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.06 in
Chance of precipitation30%
Record high59° (2001)
Record low4° (2014)
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 Mastodon, 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 Mastodon, 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.