Weather in Sylvan Mounds, WI
Sylvan Mounds, Monday, 12 October, 17:36
Overcast. Feels like 91°. High 86°, low 62°.
Monthly outlook for Sylvan Mounds, WI: average high 64.1°, average low 49.6°. That is 3.8° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (85.9°), the coolest 17 October (37.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 65.5° | 58.3° | +4° |
| 22 October – 31 October | 61.7° | 54.8° | +3.8° |
| 1 November – 10 November | at normal | 49.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Fort Atkinson (8 mi).
0.18
Sylvan Mounds, Tuesday, 13 October
Rain. High 75°, low 61°.
0Sylvan Mounds, Wednesday, 14 October
Overcast. High 66°, low 54°.
0.49Sylvan Mounds, Thursday, 15 October
Rain. High 59°, low 53°.
0.01Sylvan Mounds, Friday, 16 October
Light rain. High 54°, low 45°.
0
Sylvan Mounds, Saturday, 17 October
Clear. High 57°, low 38°.
0Sylvan Mounds, Sunday, 18 October
Clear. High 59°, low 44°.
0Sylvan Mounds, Monday, 19 October
Overcast. High 63°, low 43°.
0Sylvan Mounds, Tuesday, 20 October
Overcast. High 64°, low 48°.
0
Sylvan Mounds, Wednesday, 21 October
Mostly clear. High 72°, low 54°.
0.22Sylvan Mounds, Thursday, 22 October
Light rain. High 69°, low 60°.
0.57Sylvan Mounds, Friday, 23 October
Rain. High 70°, low 61°.
0.18Sylvan Mounds, Saturday, 24 October
Rain. High 65°, low 45°.
0Sylvan Mounds, Sunday, 25 October
Overcast. High 50°, low 42°.
0Sylvan Mounds, Monday, 26 October
Overcast. High 56°, low 39°.
0Sylvan Mounds, Tuesday, 27 October
Overcast. High 59°, low 44°.
0.05
Sylvan Mounds, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05Sylvan Mounds, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Sylvan Mounds, Friday, 30 October
Climate normal for this date — 60-year average.
0.09
Sylvan Mounds, Saturday, 31 October
Climate normal for this date — 60-year average.
0.19Sylvan Mounds, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Sylvan Mounds, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Sylvan Mounds, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Sylvan Mounds, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Sylvan Mounds, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Sylvan Mounds, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Sylvan Mounds, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Sylvan Mounds, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Sylvan Mounds, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Sylvan Mounds, Tuesday, 10 November
Climate normal for this date — 60-year average.
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 Sylvan Mounds, 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 Sylvan Mounds, 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.
Sun and moon today
Weather history
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