Monthly outlook for Lewiston, MI: average high 50.6°, average low 38.2°. That is 0.8° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 6 days and 1.4 inches. The warmest day looks like 21 October (63.5°), the coolest 23 October (29.2°).
50.6°/38.2°
Average high / low
−0.8°
Below normal
4 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
54.3°
53°
+0.7°
24 October – 2 November
44.3°
49.9°
-3.1°
3 November – 12 November
at normal
44.6°
—
October records over 66 years
83.8°7 October 2007All-time high
20.3°23 October 1969All-time low
Thu, 1554° / 43°0.03
54 °
Lewiston, Thursday, 15 October
Light rain. High 54°, low 43°.
Pressure30.18 inHg
Wind7.3 mph SE
Humidity65%
Visibility6.2 mi
Dew point43°
Fri, 1650° / 39°0.29
50 °
Lewiston, Friday, 16 October
Rain. High 50°, low 39°.
Pressure29.85 inHg
Wind13.7 mph N
Humidity76%
Visibility6.2 mi
Dew point41°
Sat, 1750° / 33°0
50 °
Lewiston, Saturday, 17 October
Clear. High 50°, low 33°.
Pressure30.45 inHg
Wind5.8 mph W
Humidity58%
Visibility6.2 mi
Dew point31°
Sun, 1860° / 44°0
60 °
Lewiston, Sunday, 18 October
Clear. High 60°, low 44°.
Pressure30.27 inHg
Wind17.3 mph SW
Humidity41%
Visibility—
Dew point35°
Mon, 1962° / 43°0
62 °
Lewiston, Monday, 19 October
Clear. High 62°, low 43°.
Pressure30.36 inHg
Wind13.4 mph SW
Humidity50%
Visibility—
Dew point40°
Tue, 2062° / 42°0
62 °
Lewiston, Tuesday, 20 October
Clear. High 62°, low 42°.
Pressure30.24 inHg
Wind5.4 mph SW
Humidity28%
Visibility—
Dew point26°
Wed, 2164° / 42°0.1
64 °
Lewiston, Wednesday, 21 October
Light rain. High 64°, low 42°.
Pressure29.97 inHg
Wind13 mph NW
Humidity56%
Visibility—
Dew point44°
Thu, 2244° / 34°0
44 °
Lewiston, Thursday, 22 October
Overcast. High 44°, low 34°.
Pressure30.24 inHg
Wind14.6 mph NW
Humidity43%
Visibility—
Dew point22°
Fri, 2345° / 29°0
45 °
Lewiston, Friday, 23 October
Clear. High 45°, low 29°.
Pressure30.42 inHg
Wind8.7 mph N
Humidity40%
Visibility—
Dew point20°
Sat, 2452° / 31°0
52 °
Lewiston, Saturday, 24 October
Overcast. High 52°, low 31°.
Pressure30.21 inHg
Wind6.2 mph W
Humidity33%
Visibility—
Dew point20°
Sun, 2543° / 36°0.13
43 °
Lewiston, Sunday, 25 October
Light rain. High 43°, low 36°.
Pressure29.80 inHg
Wind10.5 mph NW
Humidity90%
Visibility—
Dew point40°
Mon, 2641° / 34°0.04
41 °
Lewiston, Monday, 26 October
Snow. High 41°, low 34°.
Pressure29.88 inHg
Wind12.1 mph NW
Humidity62%
Visibility—
Dew point28°
Tue, 2743° / 35°0.01
43 °
Lewiston, Tuesday, 27 October
Light rain. High 43°, low 35°.
Pressure29.94 inHg
Wind10.3 mph NW
Humidity57%
Visibility—
Dew point28°
Wed, 2842° / 38°0
42 °
Lewiston, Wednesday, 28 October
Overcast. High 42°, low 38°.
Pressure29.97 inHg
Wind8.1 mph NW
Humidity62%
Visibility—
Dew point29°
Thu, 2945° / 38°0
45 °
Lewiston, Thursday, 29 October
Overcast. High 45°, low 38°.
Pressure30.00 inHg
Wind5.5 mph N
Humidity56%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3050° / 36°0.07
50 °
Lewiston, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (2024)
Record low24° (1988)
Sat, 3150° / 37°0.08
50 °
Lewiston, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation35%
Record high66° (2024)
Record low24° (2020)
Sun, 0149° / 37°0.1
49 °
Lewiston, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.1 in
Chance of precipitation42%
Record high68° (1968)
Record low24° (2023)
Mon, 0248° / 36°0.11
48 °
Lewiston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.11 in
Chance of precipitation38%
Record high67° (1990)
Record low24° (1984)
Tue, 0347° / 35°0.07
47 °
Lewiston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high67° (1987)
Record low20° (1991)
Wed, 0447° / 35°0.09
47 °
Lewiston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation38%
Record high69° (1964)
Record low17° (1991)
Thu, 0547° / 35°0.1
47 °
Lewiston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation37%
Record high69° (1978)
Record low16° (1991)
Fri, 0646° / 33°0.11
46 °
Lewiston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation33%
Record high68° (2020)
Record low15° (1991)
Sat, 0745° / 33°0.04
45 °
Lewiston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.04 in
Chance of precipitation27%
Record high68° (2020)
Record low11° (1991)
Sun, 0845° / 32°0.05
45 °
Lewiston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.05 in
Chance of precipitation27%
Record high69° (2020)
Record low13° (1991)
Mon, 0945° / 33°0.09
45 °
Lewiston, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation42%
Record high71° (2020)
Record low14° (1995)
Tue, 1044° / 32°0.09
44 °
Lewiston, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation40%
Record high70° (2022)
Record low9° (2017)
Wed, 1141° / 30°0.09
41 °
Lewiston, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.09 in
Chance of precipitation37%
Record high64° (2012)
Record low14° (2019)
Thu, 1241° / 29°0.06
41 °
Lewiston, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation27%
Record high60° (1964)
Record low12° (2019)
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 Lewiston, 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 Lewiston, 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.