Weather in Fairview Heights, IL
Fairview Heights, Tuesday, 20 October, 13:05
Clear. Feels like 71°. High 72°, low 45°.
Monthly outlook for Fairview Heights, IL: average high 64.8°, average low 45.2°. That is 1° above the climate normal for October. Precipitation is expected on 1 day (about 0.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 25 October (76.4°), the coolest 31 October (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 67.9° | 64.2° | +2° |
| 30 October – 8 November | 59.7° | 59.9° | -0.1° |
| 9 November – 18 November | at normal | 55.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Louis (13 mi).
0Fairview Heights, Wednesday, 21 October
Clear. High 73°, low 48°.
0Fairview Heights, Thursday, 22 October
Clear. High 71°, low 50°.
0Fairview Heights, Friday, 23 October
Clear. High 71°, low 51°.
0
Fairview Heights, Saturday, 24 October
Overcast. High 73°, low 50°.
0Fairview Heights, Sunday, 25 October
Overcast. High 76°, low 54°.
0Fairview Heights, Monday, 26 October
Overcast. High 75°, low 54°.
0.01
Fairview Heights, Tuesday, 27 October
Light rain. High 52°, low 41°.
0Fairview Heights, Wednesday, 28 October
Clear. High 54°, low 33°.
0
Fairview Heights, Thursday, 29 October
Partly cloudy. High 63°, low 38°.
0Fairview Heights, Friday, 30 October
Clear. High 53°, low 38°.
0Fairview Heights, Saturday, 31 October
Overcast. High 53°, low 32°.
0Fairview Heights, Sunday, 1 November
Overcast. High 56°, low 41°.
0Fairview Heights, Monday, 2 November
Clear. High 65°, low 43°.
0Fairview Heights, Tuesday, 3 November
Overcast. High 65°, low 45°.
0.04Fairview Heights, Wednesday, 4 November
Light rain. High 65°, low 59°.
0.16
Fairview Heights, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Fairview Heights, Friday, 6 November
Climate normal for this date — 60-year average.
0.08
Fairview Heights, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Fairview Heights, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Fairview Heights, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Fairview Heights, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Fairview Heights, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Fairview Heights, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Fairview Heights, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Fairview Heights, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Fairview Heights, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Fairview Heights, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Fairview Heights, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.17Fairview Heights, Wednesday, 18 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 Fairview Heights, 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 Fairview Heights, 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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