Weather in Des Plaines, IL
Des Plaines, Monday, 12 October, 15:07
Partly cloudy. Feels like 89°. High 87°, low 61°.
Monthly outlook for Des Plaines, IL: average high 67.3°, average low 54.2°. That is 4.6° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 12 October (87°), the coolest 17 October (39.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 66.5° | 60.1° | +3.6° |
| 22 October – 31 October | 68.7° | 56.5° | +6.8° |
| 1 November – 10 November | at normal | 52.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Park Ridge (3 mi).
0.17
Des Plaines, Tuesday, 13 October
Rain. High 81°, low 65°.
0.19Des Plaines, Wednesday, 14 October
Rain. High 67°, low 59°.
0.15Des Plaines, Thursday, 15 October
Light rain. High 60°, low 57°.
0
Des Plaines, Friday, 16 October
Mostly clear. High 57°, low 47°.
0
Des Plaines, Saturday, 17 October
Clear. High 59°, low 40°.
0Des Plaines, Sunday, 18 October
Clear. High 62°, low 45°.
0.01Des Plaines, Monday, 19 October
Light rain. High 60°, low 53°.
0.2Des Plaines, Tuesday, 20 October
Rain. High 62°, low 55°.
0
Des Plaines, Wednesday, 21 October
Overcast. High 70°, low 58°.
0Des Plaines, Thursday, 22 October
Overcast. High 76°, low 59°.
0.08Des Plaines, Friday, 23 October
Light rain. High 73°, low 65°.
0.28Des Plaines, Saturday, 24 October
Rain. High 76°, low 65°.
0.02Des Plaines, Sunday, 25 October
Light rain. High 68°, low 50°.
0Des Plaines, Monday, 26 October
Clear. High 57°, low 43°.
0Des Plaines, Tuesday, 27 October
Overcast. High 62°, low 47°.
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.
0.14
Des 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.
0.05Des Plaines, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Des Plaines, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Des Plaines, 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 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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