Weather in Dow, IL
Dow, Thursday, 8 October, 19:30
Clear. Feels like 73°. High 84°, low 52°.
Monthly outlook for Dow, IL: average high 77.1°, average low 54.9°. That is 6.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (90.6°), the coolest 18 October (38.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 81.1° | 67.2° | +7.7° |
| 18 October – 27 October | 70.4° | 62.7° | +4.3° |
| 28 October – 6 November | at normal | 58.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jerseyville (7 mi).
0
Dow, Friday, 9 October
Clear. High 86°, low 55°.
0
Dow, Saturday, 10 October
Overcast. High 81°, low 55°.
0Dow, Sunday, 11 October
Clear. High 81°, low 56°.
0Dow, Monday, 12 October
Clear. High 91°, low 64°.
0.08
Dow, Tuesday, 13 October
Light rain. High 86°, low 69°.
0.32Dow, Wednesday, 14 October
Rain. High 82°, low 64°.
0.09Dow, Thursday, 15 October
Light rain. High 90°, low 74°.
0.25Dow, Friday, 16 October
Rain. High 73°, low 54°.
0Dow, Saturday, 17 October
Clear. High 57°, low 44°.
0Dow, Sunday, 18 October
Clear. High 60°, low 39°.
0Dow, Monday, 19 October
Clear. High 66°, low 40°.
0Dow, Tuesday, 20 October
Overcast. High 74°, low 50°.
0.24Dow, Wednesday, 21 October
Light rain. High 73°, low 56°.
0Dow, Thursday, 22 October
Clear. High 72°, low 53°.
0
Dow, Friday, 23 October
Partly cloudy. High 76°, low 54°.
0.1Dow, Saturday, 24 October
Climate normal for this date — 60-year average.
0.13Dow, Sunday, 25 October
Climate normal for this date — 60-year average.
0.14
Dow, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Dow, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.04Dow, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.11Dow, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Dow, Friday, 30 October
Climate normal for this date — 60-year average.
0.15Dow, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Dow, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Dow, Monday, 2 November
Climate normal for this date — 60-year average.
0.11Dow, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Dow, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Dow, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Dow, Friday, 6 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 Dow, 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 Dow, 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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