Weather in Southport, IL
Southport, Friday, 13 November, 19:46
Overcast. Feels like 33°. High 43°, low 35°.
Monthly outlook for Southport, IL: average high 47.6°, average low 33.6°. That is 0.3° above the climate normal for November. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 November (67.3°), the coolest 24 November (18.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 53.4° | 48.5° | +2.7° |
| 23 November – 2 December | 37.9° | 43.4° | -3.1° |
| 3 December – 12 December | at normal | 38.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Trivoli (7 mi).
0
Southport, Saturday, 14 November
Clear. High 46°, low 29°.
0
Southport, Sunday, 15 November
Mostly clear. High 48°, low 29°.
0Southport, Monday, 16 November
Clear. High 52°, low 30°.
0Southport, Tuesday, 17 November
Clear. High 54°, low 34°.
0Southport, Wednesday, 18 November
Overcast. High 58°, low 38°.
0.06
Southport, Thursday, 19 November
Light rain. High 61°, low 50°.
0.01Southport, Friday, 20 November
Light rain. High 61°, low 55°.
0.21Southport, Saturday, 21 November
Rain. High 67°, low 53°.
0.02
Southport, Sunday, 22 November
Light snow. High 43°, low 26°.
0Southport, Monday, 23 November
Light snow. High 27°, low 22°.
0Southport, Tuesday, 24 November
Clear. High 29°, low 18°.
0Southport, Wednesday, 25 November
Overcast. High 40°, low 24°.
0Southport, Thursday, 26 November
Overcast. High 37°, low 28°.
0.32Southport, Friday, 27 November
Rain. High 45°, low 30°.
0.27Southport, Saturday, 28 November
Rain. High 50°, low 36°.
0.07
Southport, Sunday, 29 November
Climate normal for this date — 60-year average.
0.09Southport, Monday, 30 November
Climate normal for this date — 60-year average.
0.13
Southport, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.06Southport, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Southport, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07Southport, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Southport, Saturday, 5 December
Climate normal for this date — 60-year average.
0.07Southport, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1Southport, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Southport, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Southport, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Southport, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Southport, Friday, 11 December
Climate normal for this date — 60-year average.
0.06Southport, Saturday, 12 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 Southport, IL 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 Southport, IL 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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