Mainline Lake, WI 14 Day Weather
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Mainline Lake, WI Weather Forecast


Mainline Lake, WI Weather Forecast Dated: 218 AM Mon Sep 28 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Monday, September 28, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
67°F 20°C
Sunny
Pleasant near 71°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
58°F 15°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with increasing humidity and steady pressure. Winds out of the SSW at 10 mph 17 km/h. Gusts up to 21 mph 35 km/h.
Wednesday, September 30, 2026
Mid-Morning
55°F 13°C
Fog
Mid-Afternoon
58°F 14°C
Fog
Early-Evening
58°F 14°C
Light Showers
Comfortable at 58°F 14°C, dry most of the day, with showers developing late, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
58°F 14°C
Overcast
Early-Evening
51°F 11°C
Partly Cloudy
Cool with a high near 58°F 14°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure rising. Winds blowing from the NW at 13 mph 21 km/h. Gusts up to 27 mph 44 km/h.
Friday, October 2, 2026
Mid-Morning
42°F 6°C
Sunny
Mid-Afternoon
51°F 11°C
Sunny
Early-Evening
48°F 9°C
Sunny
Brisk around 51°F 11°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the NW to the WNW at 5 mph 8 km/h.
Saturday, October 3, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
53°F 12°C
Overcast
Early-Evening
49°F 10°C
Overcast
Cool and brisk at 53°F 12°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and barometric pressure falling. Winds out of the S at 11 mph 18 km/h. Gusts up to 27 mph 44 km/h.
Sunday, October 4, 2026
Mid-Morning
47°F 8°C
Light Showers
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
43°F 6°C
Scattered Showers
Chilly near 47°F 8°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds shifting from the SW to the NW at 12 mph 19 km/h. Gusts up to 25 mph 41 km/h.
Monday, October 5, 2026
Mid-Morning
34°F 1°C
Light Sleet Showers
Mid-Afternoon
35°F 2°C
Heavy Snow Showers
Early-Evening
35°F 2°C
Overcast
Biting cold near 35°F 2°C, sleet lingering into the afternoon before clearing, with steady humidity and barometric pressure rising. Winds turning from the NW to the NNW at 10 mph 16 km/h. Gusts up to 22 mph 36 km/h.
Tuesday, October 6, 2026
Mid-Morning
40°F 4°C
Light Fog
Mid-Afternoon
51°F 11°C
Overcast
Early-Evening
49°F 9°C
Sunny
Brisk around 51°F 11°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
55°F 13°C
Overcast
Cool and brisk at 55°F 13°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
42°F 6°C
Sunny
Mid-Afternoon
42°F 6°C
Overcast
Early-Evening
38°F 4°C
Overcast
Biting cold near 42°F 6°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the NNW to the N at 10 mph 15 km/h.
Friday, October 9, 2026
Mid-Morning
36°F 2°C
Scattered Showers
Mid-Afternoon
41°F 5°C
Overcast
Early-Evening
38°F 4°C
Overcast
Cold with a high near 41°F 5°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds blowing from the WSW at 8 mph 12 km/h.
Saturday, October 10, 2026
Mid-Morning
40°F 5°C
Overcast
Mid-Afternoon
49°F 9°C
Cloudy
Early-Evening
49°F 10°C
Overcast
Brisk around 49°F 9°C, overcast throughout the day, with lower humidity and barometric pressure falling.
Sunday, October 11, 2026
Mid-Morning
44°F 7°C
Overcast
Mid-Afternoon
37°F 3°C
Scattered Showers
Early-Evening
35°F 2°C
Scattered Showers
Biting cold near 37°F 3°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds swinging from the NW to the N at 14 mph 23 km/h. Gusts up to 29 mph 47 km/h.
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