Monthly outlook for Lewis, WI: average high 56.7°, average low 42.6°. That is 4.3° above the climate normal for October. Precipitation is expected on 7 days (about 3.8 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 23 October (71.7°), the coolest 29 October (32.9°).
56.7°/42.6°
Average high / low
+4.3°
Above normal
7 / 4
Wet days / normal
3.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
59°
50.8°
+4.5°
31 October – 9 November
53°
45.1°
+4.4°
10 November – 19 November
at normal
39°
—
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).
Thu, 2270° / 39°0
70 °
Lewis, Thursday, 22 October
Clear. High 70°, low 39°.
Pressure30.24 inHg
Wind2.9 mph SE
Humidity60%
Visibility6.2 mi
Dew point50°
Fri, 2372° / 49°0
72 °
Lewis, Friday, 23 October
Mostly clear. High 72°, low 49°.
Pressure30.18 inHg
Wind10.5 mph S
Humidity60%
Visibility6.2 mi
Dew point54°
Sat, 2472° / 56°0.07
72 °
Lewis, Saturday, 24 October
Light rain. High 72°, low 56°.
Pressure30.12 inHg
Wind14.7 mph S
Humidity68%
Visibility6.2 mi
Dew point54°
Sun, 2556° / 44°0.5
56 °
Lewis, Sunday, 25 October
Light rain. High 56°, low 44°.
Pressure30.39 inHg
Wind10.2 mph NE
Humidity78%
Visibility—
Dew point45°
Mon, 2644° / 40°1.74
44 °
Lewis, Monday, 26 October
Heavy rain. High 44°, low 40°.
Pressure30.24 inHg
Wind15.9 mph NE
Humidity98%
Visibility—
Dew point43°
Tue, 2744° / 38°0.06
44 °
Lewis, Tuesday, 27 October
Light rain. High 44°, low 38°.
Pressure30.33 inHg
Wind12.4 mph NE
Humidity88%
Visibility—
Dew point39°
Wed, 2857° / 42°0.02
57 °
Lewis, Wednesday, 28 October
Light rain. High 57°, low 42°.
Pressure29.88 inHg
Wind12.7 mph N
Humidity74%
Visibility—
Dew point48°
Thu, 2953° / 33°0
53 °
Lewis, Thursday, 29 October
Clear. High 53°, low 33°.
Pressure30.24 inHg
Wind11.7 mph W
Humidity32%
Visibility—
Dew point19°
Fri, 3054° / 34°0
54 °
Lewis, Friday, 30 October
Overcast. High 54°, low 34°.
Pressure30.24 inHg
Wind15 mph SE
Humidity34%
Visibility—
Dew point22°
Sat, 3159° / 44°0.57
59 °
Lewis, Saturday, 31 October
Rain. High 59°, low 44°.
Pressure29.50 inHg
Wind22.3 mph SE
Humidity92%
Visibility—
Dew point45°
Sun, 0158° / 49°0
58 °
Lewis, Sunday, 1 November
Overcast. High 58°, low 49°.
Pressure29.83 inHg
Wind11.8 mph N
Humidity74%
Visibility—
Dew point48°
Mon, 0252° / 43°0
52 °
Lewis, Monday, 2 November
Partly cloudy. High 52°, low 43°.
Pressure30.18 inHg
Wind11.2 mph NE
Humidity63%
Visibility—
Dew point38°
Tue, 0349° / 38°0
49 °
Lewis, Tuesday, 3 November
Overcast. High 49°, low 38°.
Pressure30.06 inHg
Wind12.6 mph N
Humidity57%
Visibility—
Dew point33°
Wed, 0445° / 42°0.57
45 °
Lewis, Wednesday, 4 November
Rain. High 45°, low 42°.
Pressure29.77 inHg
Wind15.5 mph NE
Humidity93%
Visibility—
Dew point42°
Thu, 0556° / 46°0.23
56 °
Lewis, Thursday, 5 November
Light rain. High 56°, low 46°.
Pressure29.38 inHg
Wind10.5 mph NE
Humidity81%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0645° / 33°0.06
45 °
Lewis, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high70° (2020)
Record low4° (1991)
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)
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.