Weather in North Chicago, IL
North Chicago, Saturday, 8 August, 23:50
Clear. Feels like 66°. High 82°, low 66°.
Monthly outlook for North Chicago, IL: average high 76.3°, average low 63.8°. That is 0.9° below the climate normal for August. Precipitation is expected on 4 days (about 2.9 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (84°), the coolest 20 August (55.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 77.9° | 78.1° | -0.1° |
| 18 August – 27 August | 73.6° | 77.8° | -2.3° |
| 28 August – 6 September | at normal | 76.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (8 mi).
1.41
North Chicago, Sunday, 9 August
Heavy rain. High 83°, low 64°.
0.76North Chicago, Monday, 10 August
Heavy rain. High 84°, low 70°.
0.66North Chicago, Tuesday, 11 August
Heavy rain. High 79°, low 69°.
0.01North Chicago, Wednesday, 12 August
Light rain. High 80°, low 67°.
0
North Chicago, Thursday, 13 August
Overcast. High 70°, low 65°.
0
North Chicago, Friday, 14 August
Clear. High 74°, low 60°.
0North Chicago, Saturday, 15 August
Overcast. High 74°, low 63°.
0North Chicago, Sunday, 16 August
Overcast. High 73°, low 61°.
0.01North Chicago, Monday, 17 August
Light rain. High 79°, low 65°.
0North Chicago, Tuesday, 18 August
Overcast. High 83°, low 68°.
0North Chicago, Wednesday, 19 August
Overcast. High 73°, low 62°.
0North Chicago, Thursday, 20 August
Overcast. High 67°, low 56°.
0North Chicago, Friday, 21 August
Clear. High 71°, low 56°.
0.04North Chicago, Saturday, 22 August
Light rain. High 67°, low 62°.
0
North Chicago, Sunday, 23 August
Mostly clear. High 80°, low 65°.
0.11
North Chicago, Monday, 24 August
Climate normal for this date — 60-year average.
0.07North Chicago, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.14
North Chicago, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1North Chicago, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12North Chicago, Friday, 28 August
Climate normal for this date — 60-year average.
0.13North Chicago, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09North Chicago, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06North Chicago, Monday, 31 August
Climate normal for this date — 60-year average.
0.1North Chicago, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04North Chicago, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09North Chicago, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08North Chicago, Friday, 4 September
Climate normal for this date — 60-year average.
0.08North Chicago, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09North Chicago, Sunday, 6 September
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 North Chicago, 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 North Chicago, 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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