Weather in Dewey, IL
Dewey, Monday, 12 October, 01:15
Overcast. Feels like 64°. High 85°, low 61°.
Monthly outlook for Dewey, IL: average high 66.4°, average low 51.2°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 13 October (86.1°), the coolest 18 October (35.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 72.6° | 63.2° | +5.2° |
| 22 October – 31 October | 56° | 59.8° | -2.1° |
| 1 November – 10 November | at normal | 55.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Champaign (14 mi).
0
Dewey, Tuesday, 13 October
Partly cloudy. High 86°, low 69°.
0.17
Dewey, Wednesday, 14 October
Rain. High 78°, low 65°.
0.54Dewey, Thursday, 15 October
Rain. High 74°, low 63°.
0.2Dewey, Friday, 16 October
Rain. High 64°, low 49°.
0
Dewey, Saturday, 17 October
Clear. High 57°, low 41°.
0Dewey, Sunday, 18 October
Clear. High 62°, low 35°.
0Dewey, Monday, 19 October
Overcast. High 68°, low 47°.
0Dewey, Tuesday, 20 October
Overcast. High 73°, low 55°.
0.01Dewey, Wednesday, 21 October
Light rain. High 79°, low 60°.
0.71Dewey, Thursday, 22 October
Rain. High 67°, low 52°.
0Dewey, Friday, 23 October
Clear. High 51°, low 46°.
0Dewey, Saturday, 24 October
Clear. High 53°, low 37°.
0.09Dewey, Sunday, 25 October
Light rain. High 55°, low 47°.
0Dewey, Monday, 26 October
Overcast. High 55°, low 47°.
0Dewey, Tuesday, 27 October
Light rain. High 56°, low 46°.
0.07
Dewey, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Dewey, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Dewey, Friday, 30 October
Climate normal for this date — 60-year average.
0.17
Dewey, Saturday, 31 October
Climate normal for this date — 60-year average.
0.18Dewey, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Dewey, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Dewey, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Dewey, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Dewey, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Dewey, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Dewey, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Dewey, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Dewey, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Dewey, 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 Dewey, 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 Dewey, 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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