Weather in Des Plaines, IL
Des Plaines, Friday, 9 October, 20:21
Partly cloudy. Feels like 64°. High 69°, low 51°.
Monthly outlook for Des Plaines, IL: average high 64.5°, average low 53°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (80.2°), the coolest 18 October (38.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 66.2° | 61.5° | +2.6° |
| 19 October – 28 October | 61.7° | 57.4° | +2.4° |
| 29 October – 7 November | at normal | 53.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park Ridge (3 mi).
0
Des Plaines, Saturday, 10 October
Overcast. High 77°, low 61°.
0
Des Plaines, Sunday, 11 October
Clear. High 73°, low 61°.
0Des Plaines, Monday, 12 October
Overcast. High 80°, low 61°.
0
Des Plaines, Tuesday, 13 October
Light rain. High 75°, low 61°.
0.05Des Plaines, Wednesday, 14 October
Light rain. High 63°, low 58°.
0.02Des Plaines, Thursday, 15 October
Light rain. High 61°, low 56°.
0.02Des Plaines, Friday, 16 October
Light rain. High 65°, low 48°.
0.02Des Plaines, Saturday, 17 October
Light rain. High 46°, low 41°.
0Des Plaines, Sunday, 18 October
Clear. High 52°, low 38°.
0Des Plaines, Monday, 19 October
Clear. High 60°, low 44°.
0.01Des Plaines, Tuesday, 20 October
Light rain. High 64°, low 52°.
0.18Des Plaines, Wednesday, 21 October
Rain. High 66°, low 54°.
0.75Des Plaines, Thursday, 22 October
Rain. High 60°, low 57°.
0.01Des Plaines, Friday, 23 October
Light rain. High 61°, low 55°.
0Des Plaines, Saturday, 24 October
Overcast. High 58°, low 50°.
0.11
Des Plaines, Sunday, 25 October
Climate normal for this date — 60-year average.
0.11
Des Plaines, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Des Plaines, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.05Des Plaines, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Des Plaines, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Des Plaines, Friday, 30 October
Climate normal for this date — 60-year average.
0.14Des Plaines, Saturday, 31 October
Climate normal for this date — 60-year average.
0.16Des Plaines, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Des Plaines, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Des Plaines, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Des Plaines, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Des Plaines, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Des Plaines, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Des Plaines, Saturday, 7 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 Des Plaines, 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 Des Plaines, 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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