Weather in Streamwood, IL
Streamwood, Friday, 16 October, 17:34
Mostly clear. Feels like 48°. High 56°, low 45°.
Monthly outlook for Streamwood, IL: average high 61.3°, average low 46.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 25 October (71.8°), the coolest 27 October (35.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 64.2° | 58.4° | +3.2° |
| 26 October – 4 November | 56.5° | 54.5° | +1.1° |
| 5 November – 14 November | at normal | 49° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Elgin (8 mi).
0
Streamwood, Saturday, 17 October
Clear. High 55°, low 37°.
0Streamwood, Sunday, 18 October
Clear. High 60°, low 41°.
0
Streamwood, Monday, 19 October
Overcast. High 62°, low 41°.
0Streamwood, Tuesday, 20 October
Overcast. High 65°, low 46°.
0.02
Streamwood, Wednesday, 21 October
Light rain. High 66°, low 49°.
0Streamwood, Thursday, 22 October
Mostly clear. High 69°, low 52°.
0Streamwood, Friday, 23 October
Overcast. High 67°, low 54°.
0Streamwood, Saturday, 24 October
Overcast. High 70°, low 55°.
0Streamwood, Sunday, 25 October
Mostly clear. High 72°, low 54°.
0.01Streamwood, Monday, 26 October
Light rain. High 61°, low 44°.
0Streamwood, Tuesday, 27 October
Clear. High 54°, low 35°.
0Streamwood, Wednesday, 28 October
Overcast. High 55°, low 41°.
0.11Streamwood, Thursday, 29 October
Light rain. High 59°, low 51°.
0Streamwood, Friday, 30 October
Overcast. High 55°, low 47°.
0Streamwood, Saturday, 31 October
Overcast. High 55°, low 45°.
0.17
Streamwood, Sunday, 1 November
Climate normal for this date — 60-year average.
0.11Streamwood, Monday, 2 November
Climate normal for this date — 60-year average.
0.06
Streamwood, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Streamwood, 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.
0.1Streamwood, 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.
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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