Weather in Pierson, IL
Pierson, Monday, 12 October, 08:13
Partly cloudy. Feels like 63°. High 88°, low 60°.
Monthly outlook for Pierson, IL: average high 73.9°, average low 56°. That is 6° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (89.2°), the coolest 18 October (40.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 74.7° | 64.2° | +5.8° |
| 22 October – 31 October | 72.8° | 60.7° | +6.7° |
| 1 November – 10 November | at normal | 56.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lake City (11 mi).
0
Pierson, Tuesday, 13 October
Clear. High 89°, low 67°.
0.4
Pierson, Wednesday, 14 October
Rain. High 81°, low 67°.
0.65Pierson, Thursday, 15 October
Rain. High 74°, low 65°.
0.02Pierson, Friday, 16 October
Light rain. High 63°, low 50°.
0Pierson, Saturday, 17 October
Clear. High 62°, low 41°.
0Pierson, Sunday, 18 October
Clear. High 65°, low 40°.
0.01Pierson, Monday, 19 October
Light rain. High 69°, low 51°.
0Pierson, Tuesday, 20 October
Clear. High 77°, low 57°.
0Pierson, Wednesday, 21 October
Clear. High 79°, low 60°.
0
Pierson, Thursday, 22 October
Overcast. High 81°, low 65°.
0Pierson, Friday, 23 October
Overcast. High 81°, low 67°.
0.03Pierson, Saturday, 24 October
Light rain. High 81°, low 63°.
0.03Pierson, Sunday, 25 October
Light rain. High 69°, low 52°.
0
Pierson, Monday, 26 October
Mostly clear. High 59°, low 44°.
0Pierson, Tuesday, 27 October
Clear. High 66°, low 47°.
0.06Pierson, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Pierson, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Pierson, Friday, 30 October
Climate normal for this date — 60-year average.
0.17
Pierson, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Pierson, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Pierson, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Pierson, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Pierson, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Pierson, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Pierson, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Pierson, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Pierson, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Pierson, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Pierson, Tuesday, 10 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 Pierson, 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 Pierson, 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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