Monthly outlook for State Line, WI: average high 62.1°, average low 49.1°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 25 October (70.6°), the coolest 17 October (35.3°).
62.1°/49.1°
Average high / low
+3.9°
Above normal
4 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
64.2°
56.1°
+4.5°
27 October – 5 November
58.6°
52.3°
+3.5°
6 November – 15 November
at normal
47.1°
—
October records over 66 years
84.2°3 October 2025All-time high
27.3°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Kenosha (7 mi).
Sun, 1861° / 43°0
61 °
State Line, Sunday, 18 October
Clear. High 61°, low 43°.
Pressure30.39 inHg
Wind13.2 mph SW
Humidity53%
Visibility6.2 mi
Dew point40°
Mon, 1963° / 44°0
63 °
State Line, Monday, 19 October
Overcast. High 63°, low 44°.
Pressure30.39 inHg
Wind3.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point45°
Tue, 2063° / 44°0
63 °
State Line, Tuesday, 20 October
Mostly clear. High 63°, low 44°.
Pressure30.39 inHg
Wind4.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point51°
Wed, 2166° / 46°0
66 °
State Line, Wednesday, 21 October
Clear. High 66°, low 46°.
Pressure30.27 inHg
Wind3.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point46°
Thu, 2264° / 49°0
64 °
State Line, Thursday, 22 October
Clear. High 64°, low 49°.
Pressure30.33 inHg
Wind7.5 mph E
Humidity61%
Visibility—
Dew point48°
Fri, 2367° / 53°0
67 °
State Line, Friday, 23 October
Overcast. High 67°, low 53°.
Pressure30.27 inHg
Wind8.3 mph SE
Humidity51%
Visibility—
Dew point47°
Sat, 2466° / 58°0
66 °
State Line, Saturday, 24 October
Overcast. High 66°, low 58°.
Pressure30.21 inHg
Wind11.6 mph SW
Humidity43%
Visibility—
Dew point42°
Sun, 2571° / 60°0
71 °
State Line, Sunday, 25 October
Overcast. High 71°, low 60°.
Pressure30.09 inHg
Wind14.8 mph SW
Humidity44%
Visibility—
Dew point46°
Mon, 2663° / 53°0.36
63 °
State Line, Monday, 26 October
Rain. High 63°, low 53°.
Pressure30.15 inHg
Wind10.7 mph NE
Humidity89%
Visibility—
Dew point52°
Tue, 2751° / 47°0
51 °
State Line, Tuesday, 27 October
Overcast. High 51°, low 47°.
Pressure30.39 inHg
Wind14.2 mph NE
Humidity55%
Visibility—
Dew point35°
Wed, 2852° / 46°0
52 °
State Line, Wednesday, 28 October
Overcast. High 52°, low 46°.
Pressure30.36 inHg
Wind15.6 mph SE
Humidity53%
Visibility—
Dew point34°
Thu, 2957° / 47°0.46
57 °
State Line, Thursday, 29 October
Rain. High 57°, low 47°.
Pressure29.91 inHg
Wind15.6 mph S
Humidity92%
Visibility—
Dew point48°
Fri, 3065° / 57°0.17
65 °
State Line, Friday, 30 October
Light rain. High 65°, low 57°.
Pressure29.83 inHg
Wind16.2 mph S
Humidity71%
Visibility—
Dew point54°
Sat, 3167° / 53°1.3
67 °
State Line, Saturday, 31 October
Rain. High 67°, low 53°.
Pressure29.71 inHg
Wind19.1 mph W
Humidity75%
Visibility—
Dew point58°
Sun, 0160° / 51°0
60 °
State Line, Sunday, 1 November
Partly cloudy. High 60°, low 51°.
Pressure30.15 inHg
Wind11 mph SE
Humidity62%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0251° / 42°0.14
51 °
State Line, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high67° (1961)
Record low24° (1991)
Tue, 0351° / 41°0.06
51 °
State Line, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.06 in
Chance of precipitation30%
Record high69° (2022)
Record low19° (1991)
Wed, 0450° / 42°0.1
50 °
State Line, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2022)
Record low16° (1991)
Thu, 0551° / 41°0.12
51 °
State Line, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.12 in
Chance of precipitation28%
Record high67° (1978)
Record low22° (1991)
Fri, 0650° / 40°0.09
50 °
State Line, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (2020)
Record low22° (1991)
Sat, 0749° / 40°0.05
49 °
State Line, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (2020)
Record low17° (1991)
Sun, 0849° / 40°0.05
49 °
State Line, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.05 in
Chance of precipitation18%
Record high67° (2020)
Record low17° (2019)
Mon, 0949° / 40°0.11
49 °
State Line, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2020)
Record low23° (2017)
Tue, 1048° / 39°0.12
48 °
State Line, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.12 in
Chance of precipitation38%
Record high73° (2022)
Record low19° (2017)
Wed, 1146° / 37°0.08
46 °
State Line, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.08 in
Chance of precipitation35%
Record high64° (1964)
Record low15° (2019)
Thu, 1244° / 36°0.06
44 °
State Line, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (1964)
Record low6° (2019)
Fri, 1345° / 35°0.05
45 °
State Line, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high64° (1999)
Record low9° (2019)
Sat, 1445° / 36°0.07
45 °
State Line, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high62° (2025)
Record low18° (1986)
Sun, 1545° / 37°0.08
45 °
State Line, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2025)
Record low21° (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 State Line, 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 State Line, 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.