Weather in Saint Thomas, IL
Saint Thomas, Sunday, 1 November, 01:37
Drizzle. Feels like 63°. High 71°, low 61°.
Monthly outlook for Saint Thomas, IL: average high 61.6°, average low 49.8°. That is 3° above the climate normal for November. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 2 November (73.7°), the coolest 9 November (40.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 63.7° | 58° | +3.2° |
| 11 November – 20 November | 58° | 53.3° | +2.6° |
| 21 November – 30 November | at normal | 49.2° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Edwardsville (7 mi).
0
Saint Thomas, Monday, 2 November
Overcast. High 74°, low 61°.
0.85
Saint Thomas, Tuesday, 3 November
Heavy rain. High 74°, low 65°.
0.09Saint Thomas, Wednesday, 4 November
Rain. High 64°, low 58°.
0Saint Thomas, Thursday, 5 November
Overcast. High 61°, low 52°.
0Saint Thomas, Friday, 6 November
Overcast. High 57°, low 49°.
0
Saint Thomas, Saturday, 7 November
Partly cloudy. High 63°, low 49°.
0
Saint Thomas, Sunday, 8 November
Clear. High 57°, low 46°.
0Saint Thomas, Monday, 9 November
Clear. High 57°, low 40°.
0Saint Thomas, Tuesday, 10 November
Overcast. High 60°, low 45°.
0Saint Thomas, Wednesday, 11 November
Partly cloudy. High 57°, low 40°.
0Saint Thomas, Thursday, 12 November
Overcast. High 53°, low 47°.
0Saint Thomas, Friday, 13 November
Light rain. High 65°, low 50°.
0Saint Thomas, Saturday, 14 November
Clear. High 60°, low 47°.
0Saint Thomas, Sunday, 15 November
Clear. High 56°, low 41°.
0Saint Thomas, Monday, 16 November
Overcast. High 57°, low 44°.
0.12Saint Thomas, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.17Saint Thomas, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Saint Thomas, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Saint Thomas, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Saint Thomas, Saturday, 21 November
Climate normal for this date — 60-year average.
0.09Saint Thomas, Sunday, 22 November
Climate normal for this date — 60-year average.
0.1Saint Thomas, Monday, 23 November
Climate normal for this date — 60-year average.
0.15Saint Thomas, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.17Saint Thomas, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Saint Thomas, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Saint Thomas, Friday, 27 November
Climate normal for this date — 60-year average.
0.11Saint Thomas, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Saint Thomas, Sunday, 29 November
Climate normal for this date — 60-year average.
0.18Saint Thomas, Monday, 30 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 Saint Thomas, 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 Saint Thomas, 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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