Weather in South Byron, WI
South Byron, Thursday, 12 November, 11:32
Overcast. Feels like 28°. High 41°, low 35°.
Monthly outlook for South Byron, WI: average high 45.2°, average low 34°. That is 2° above the climate normal for November. Precipitation is expected on 6 days (about 3.6 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 19 November (56.1°), the coolest 26 November (22.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 47.4° | 42.9° | +2.5° |
| 22 November – 1 December | 41.6° | 38.2° | +1.9° |
| 2 December – 11 December | at normal | 32.6° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Theresa (9 mi).
0South Byron, Friday, 13 November
Overcast. High 42°, low 33°.
0South Byron, Saturday, 14 November
Overcast. High 41°, low 28°.
0
South Byron, Sunday, 15 November
Mostly clear. High 44°, low 27°.
0
South Byron, Monday, 16 November
Clear. High 48°, low 29°.
0South Byron, Tuesday, 17 November
Overcast. High 50°, low 32°.
0South Byron, Wednesday, 18 November
Overcast. High 55°, low 39°.
0.21
South Byron, Thursday, 19 November
Rain. High 56°, low 46°.
0
South Byron, Friday, 20 November
Partly cloudy. High 54°, low 42°.
0.36South Byron, Saturday, 21 November
Rain. High 43°, low 36°.
0.55South Byron, Sunday, 22 November
Rain. High 54°, low 45°.
0.41South Byron, Monday, 23 November
Rain. High 45°, low 41°.
0.86South Byron, Tuesday, 24 November
Rain. High 52°, low 35°.
0South Byron, Wednesday, 25 November
Overcast. High 32°, low 25°.
0.02
South Byron, Thursday, 26 November
Light snow. High 28°, low 23°.
1.2South Byron, Friday, 27 November
Snow. High 39°, low 25°.
0.09South Byron, Saturday, 28 November
Climate normal for this date — 60-year average.
0.06South Byron, Sunday, 29 November
Climate normal for this date — 60-year average.
0.05South Byron, Monday, 30 November
Climate normal for this date — 60-year average.
0.09South Byron, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.05South Byron, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09South Byron, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04South Byron, Friday, 4 December
Climate normal for this date — 60-year average.
0.06South Byron, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04South Byron, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07South Byron, Monday, 7 December
Climate normal for this date — 60-year average.
0.05South Byron, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08
South Byron, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.08South Byron, Thursday, 10 December
Climate normal for this date — 60-year average.
0.08South Byron, Friday, 11 December
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 South Byron, 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 South Byron, 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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