Monthly outlook for Lewis, WI: average high 56.8°, average low 40.2°. That is 4.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 23 October (75.1°), the coolest 29 October (33.5°).
56.8°/40.2°
Average high / low
+4.6°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
58.8°
50.4°
+4.7°
1 November – 10 November
53.5°
44.3°
+5.1°
11 November – 20 November
at normal
38.5°
—
October records over 66 years
84.9°1 October 2023All-time high
18.9°31 October 1996All-time low
Climate normals and records are computed from the nearest reference point — Siren (5 mi).
Fri, 2375° / 51°0.04
75 °
Lewis, Friday, 23 October
Light rain. High 75°, low 51°.
Pressure30.15 inHg
Wind9.4 mph S
Humidity59%
Visibility6.2 mi
Dew point54°
Sat, 2471° / 53°0.32
71 °
Lewis, Saturday, 24 October
Heavy rain. High 71°, low 53°.
Pressure30.09 inHg
Wind13.7 mph S
Humidity52%
Visibility6.2 mi
Dew point50°
Sun, 2559° / 42°0
59 °
Lewis, Sunday, 25 October
Overcast. High 59°, low 42°.
Pressure30.45 inHg
Wind3.8 mph N
Humidity42%
Visibility6.2 mi
Dew point31°
Mon, 2651° / 45°0
51 °
Lewis, Monday, 26 October
Overcast. High 51°, low 45°.
Pressure30.50 inHg
Wind8.4 mph NE
Humidity61%
Visibility—
Dew point36°
Tue, 2753° / 45°0.15
53 °
Lewis, Tuesday, 27 October
Light rain. High 53°, low 45°.
Pressure30.27 inHg
Wind10 mph SE
Humidity75%
Visibility—
Dew point44°
Wed, 2850° / 37°0
50 °
Lewis, Wednesday, 28 October
Overcast. High 50°, low 37°.
Pressure30.18 inHg
Wind10.6 mph W
Humidity72%
Visibility—
Dew point38°
Thu, 2953° / 34°0
53 °
Lewis, Thursday, 29 October
Clear. High 53°, low 34°.
Pressure30.18 inHg
Wind6.3 mph E
Humidity35%
Visibility—
Dew point22°
Fri, 3046° / 40°0.45
46 °
Lewis, Friday, 30 October
Rain. High 46°, low 40°.
Pressure29.83 inHg
Wind12.2 mph E
Humidity93%
Visibility—
Dew point41°
Sat, 3157° / 40°0
57 °
Lewis, Saturday, 31 October
Clear. High 57°, low 40°.
Pressure29.71 inHg
Wind13.8 mph W
Humidity63%
Visibility—
Dew point40°
Sun, 0157° / 39°0
57 °
Lewis, Sunday, 1 November
Clear. High 57°, low 39°.
Pressure29.91 inHg
Wind11.6 mph W
Humidity45%
Visibility—
Dew point33°
Mon, 0251° / 35°0
51 °
Lewis, Monday, 2 November
Clear. High 51°, low 35°.
Pressure30.33 inHg
Wind6.4 mph N
Humidity43%
Visibility—
Dew point26°
Tue, 0352° / 36°0
52 °
Lewis, Tuesday, 3 November
Overcast. High 52°, low 36°.
Pressure30.45 inHg
Wind5.5 mph E
Humidity43%
Visibility—
Dew point27°
Wed, 0451° / 36°0
51 °
Lewis, Wednesday, 4 November
Overcast. High 51°, low 36°.
Pressure30.50 inHg
Wind10.6 mph SE
Humidity51%
Visibility—
Dew point31°
Thu, 0552° / 35°0
52 °
Lewis, Thursday, 5 November
Partly cloudy. High 52°, low 35°.
Pressure30.36 inHg
Wind12.2 mph S
Humidity38%
Visibility—
Dew point24°
Fri, 0657° / 37°0
57 °
Lewis, Friday, 6 November
Partly cloudy. High 57°, low 37°.
Pressure30.18 inHg
Wind9 mph SW
Humidity38%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0744° / 32°0.03
44 °
Lewis, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.03 in
Chance of precipitation27%
Record high67° (2020)
Record low-7° (1991)
Sun, 0844° / 31°0.04
44 °
Lewis, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2020)
Record low1° (1991)
Mon, 0943° / 31°0.09
43 °
Lewis, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation33%
Record high66° (1999)
Record low12° (2003)
Tue, 1040° / 30°0.13
40 °
Lewis, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.13 in
Chance of precipitation32%
Record high62° (2016)
Record low8° (2017)
Wed, 1139° / 28°0.07
39 °
Lewis, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation27%
Record high59° (2012)
Record low8° (2019)
Thu, 1238° / 27°0.07
38 °
Lewis, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.07 in
Chance of precipitation22%
Record high57° (2011)
Record low-3° (1966)
Fri, 1339° / 28°0.07
39 °
Lewis, Friday, 13 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (1999)
Record low2° (1982)
Sat, 1440° / 28°0.03
40 °
Lewis, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.03 in
Chance of precipitation22%
Record high62° (2025)
Record low6° (2014)
Sun, 1540° / 28°0.04
40 °
Lewis, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.04 in
Chance of precipitation22%
Record high61° (2001)
Record low-2° (2014)
Mon, 1640° / 28°0.09
40 °
Lewis, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation22%
Record high63° (2023)
Record low9° (1997)
Tue, 1738° / 28°0.07
38 °
Lewis, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (2001)
Record low7° (2014)
Wed, 1838° / 27°0.08
38 °
Lewis, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.08 in
Chance of precipitation20%
Record high60° (2001)
Record low2° (2014)
Thu, 1938° / 27°0.07
38 °
Lewis, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.07 in
Chance of precipitation28%
Record high54° (2012)
Record low9° (2022)
Fri, 2036° / 25°0.09
36 °
Lewis, Friday, 20 November
Climate normal for this date — 60-year average.
Average high36°
Average low25°
Average precipitation0.09 in
Chance of precipitation25%
Record high53° (1982)
Record low2° (1969)
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 Lewis, WI 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 Lewis, WI 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.