Weather in Frontenac, IL
Frontenac, Friday, 16 October, 17:35
Mostly clear. Feels like 50°. High 57°, low 46°.
Monthly outlook for Frontenac, IL: average high 62.4°, average low 46.3°. That is 2.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 25 October (73.2°), the coolest 27 October (35.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 65.4° | 58.9° | +3.6° |
| 26 October – 4 November | 57.4° | 55° | +1.3° |
| 5 November – 14 November | at normal | 49.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Aurora (3 mi).
0
Frontenac, Saturday, 17 October
Clear. High 55°, low 38°.
0Frontenac, Sunday, 18 October
Clear. High 61°, low 41°.
0
Frontenac, Monday, 19 October
Partly cloudy. High 63°, low 41°.
0Frontenac, Tuesday, 20 October
Mostly clear. High 66°, low 45°.
0Frontenac, Wednesday, 21 October
Partly cloudy. High 68°, low 50°.
0Frontenac, Thursday, 22 October
Clear. High 70°, low 50°.
0
Frontenac, Friday, 23 October
Overcast. High 70°, low 55°.
0Frontenac, Saturday, 24 October
Overcast. High 71°, low 56°.
0Frontenac, Sunday, 25 October
Mostly clear. High 73°, low 53°.
0.01
Frontenac, Monday, 26 October
Light rain. High 62°, low 45°.
0Frontenac, Tuesday, 27 October
Clear. High 54°, low 36°.
0Frontenac, Wednesday, 28 October
Overcast. High 56°, low 41°.
0.09Frontenac, Thursday, 29 October
Light rain. High 61°, low 53°.
0Frontenac, Friday, 30 October
Partly cloudy. High 56°, low 47°.
0Frontenac, Saturday, 31 October
Overcast. High 56°, low 45°.
0.17
Frontenac, Sunday, 1 November
Climate normal for this date — 60-year average.
0.11Frontenac, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Frontenac, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Frontenac, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Frontenac, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Frontenac, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Frontenac, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Frontenac, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Frontenac, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Frontenac, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Frontenac, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Frontenac, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Frontenac, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Frontenac, Saturday, 14 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 Frontenac, 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 Frontenac, 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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