Weather in Streamwood, IL
Streamwood, Monday, 19 October, 14:24
Mostly clear. Feels like 66°. High 67°, low 39°.
Monthly outlook for Streamwood, IL: average high 56.7°, average low 40.7°. That is 0.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 25 October (67.5°), the coolest 29 October (28.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 61.4° | 57.3° | +2.3° |
| 29 October – 7 November | 48.8° | 53.3° | -2.5° |
| 8 November – 17 November | at normal | 47.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Elgin (8 mi).
0
Streamwood, Tuesday, 20 October
Clear. High 66°, low 44°.
0Streamwood, Wednesday, 21 October
Clear. High 66°, low 44°.
0
Streamwood, Thursday, 22 October
Light rain. High 67°, low 48°.
0Streamwood, Friday, 23 October
Clear. High 60°, low 46°.
0
Streamwood, Saturday, 24 October
Overcast. High 61°, low 46°.
0.01Streamwood, Sunday, 25 October
Light rain. High 67°, low 52°.
0.06Streamwood, Monday, 26 October
Light rain. High 62°, low 48°.
0.29Streamwood, Tuesday, 27 October
Light rain. High 57°, low 38°.
0.03
Streamwood, Wednesday, 28 October
Light snow. High 39°, low 29°.
0Streamwood, Thursday, 29 October
Clear. High 47°, low 28°.
0Streamwood, Friday, 30 October
Overcast. High 51°, low 35°.
0Streamwood, Saturday, 31 October
Overcast. High 52°, low 38°.
0.32Streamwood, Sunday, 1 November
Rain. High 50°, low 42°.
0.03Streamwood, Monday, 2 November
Light rain. High 43°, low 35°.
0Streamwood, Tuesday, 3 November
Overcast. High 49°, low 36°.
0.09
Streamwood, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Streamwood, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Streamwood, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Streamwood, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Streamwood, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Streamwood, Monday, 9 November
Climate normal for this date — 60-year average.
0.1
Streamwood, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Streamwood, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Streamwood, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Streamwood, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Streamwood, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Streamwood, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Streamwood, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Streamwood, Tuesday, 17 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 Streamwood, 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 Streamwood, 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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