Weather in Roslyn, IL
Roslyn, Sunday, 9 August, 15:42
Clear. Feels like 99°. High 88°, low 70°.
0
Roslyn, Monday, 10 August
Mostly clear. High 95°, low 76°.
0.04
Roslyn, Tuesday, 11 August
Rain. High 93°, low 75°.
0.44Roslyn, Wednesday, 12 August
Rain. High 88°, low 71°.
0.1Roslyn, Thursday, 13 August
Light rain. High 86°, low 71°.
0.06Roslyn, Friday, 14 August
Light rain. High 84°, low 71°.
0
Roslyn, Saturday, 15 August
Overcast. High 94°, low 75°.
0Roslyn, Sunday, 16 August
Clear. High 89°, low 73°.
0.09Roslyn, Monday, 17 August
Light rain. High 86°, low 66°.
0Roslyn, Tuesday, 18 August
Overcast. High 93°, low 79°.
0Roslyn, Wednesday, 19 August
Overcast. High 90°, low 74°.
0.09Roslyn, Thursday, 20 August
Light rain. High 94°, low 71°.
0Roslyn, Friday, 21 August
Light rain. High 92°, low 74°.
0Roslyn, Saturday, 22 August
Light rain. High 83°, low 63°.
0
Roslyn, Sunday, 23 August
Partly cloudy. High 87°, low 62°.
0Roslyn, Monday, 24 August
Clear. High 95°, low 69°.
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 Roslyn, 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 Roslyn, 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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