Weather in Forreston, IL
Forreston, Saturday, 10 October, 17:24
Overcast. Feels like 79°. High 80°, low 58°.
Monthly outlook for Forreston, IL: average high 60.5°, average low 45.6°. That is 0.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (80.6°), the coolest 18 October (25°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 62.1° | 60.4° | +1° |
| 20 October – 29 October | 57.7° | 56.6° | +0.6° |
| 30 October – 8 November | at normal | 52.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Freeport (12 mi).
0
Forreston, Sunday, 11 October
Clear. High 77°, low 56°.
0Forreston, Monday, 12 October
Overcast. High 81°, low 63°.
0Forreston, Tuesday, 13 October
Overcast. High 75°, low 63°.
0.02
Forreston, Wednesday, 14 October
Light rain. High 68°, low 58°.
0.38Forreston, Thursday, 15 October
Rain. High 58°, low 53°.
0.01Forreston, Friday, 16 October
Light rain. High 52°, low 36°.
0.02
Forreston, Saturday, 17 October
Light snow. High 39°, low 31°.
0Forreston, Sunday, 18 October
Clear. High 43°, low 25°.
0Forreston, Monday, 19 October
Overcast. High 48°, low 30°.
0Forreston, Tuesday, 20 October
Clear. High 58°, low 36°.
0Forreston, Wednesday, 21 October
Clear. High 63°, low 42°.
0.16Forreston, Thursday, 22 October
Rain. High 64°, low 49°.
0.12Forreston, Friday, 23 October
Light rain. High 47°, low 44°.
0Forreston, Saturday, 24 October
Overcast. High 55°, low 44°.
0Forreston, Sunday, 25 October
Overcast. High 60°, low 43°.
0.1
Forreston, Monday, 26 October
Climate normal for this date — 60-year average.
0.07Forreston, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Forreston, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Forreston, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1Forreston, Friday, 30 October
Climate normal for this date — 60-year average.
0.11
Forreston, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Forreston, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Forreston, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Forreston, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Forreston, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Forreston, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Forreston, Friday, 6 November
Climate normal for this date — 60-year average.
0.03
Forreston, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Forreston, Sunday, 8 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 Forreston, 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 Forreston, 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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