Weather in Green Brier, IL
Green Brier, Saturday, 8 August, 21:28
Clear. Feels like 78°. High 89°, low 73°.
0
Green Brier, Sunday, 9 August
Overcast. High 92°, low 73°.
0
Green Brier, Monday, 10 August
Mostly clear. High 91°, low 76°.
0
Green Brier, Tuesday, 11 August
Light rain. High 93°, low 75°.
0.31Green Brier, Wednesday, 12 August
Rain. High 85°, low 68°.
1.31Green Brier, Thursday, 13 August
Heavy rain. High 83°, low 66°.
0.39Green Brier, Friday, 14 August
Rain. High 74°, low 66°.
0.06Green Brier, Saturday, 15 August
Light rain. High 72°, low 64°.
0.18Green Brier, Sunday, 16 August
Light rain. High 79°, low 63°.
0.08Green Brier, Monday, 17 August
Light rain. High 79°, low 67°.
0Green Brier, Tuesday, 18 August
Overcast. High 81°, low 67°.
0Green Brier, Wednesday, 19 August
Overcast. High 87°, low 70°.
0Green Brier, Thursday, 20 August
Mostly clear. High 74°, low 56°.
0Green Brier, Friday, 21 August
Overcast. High 75°, low 56°.
0.06Green Brier, Saturday, 22 August
Light rain. High 85°, low 61°.
0.01Green Brier, Sunday, 23 August
Light rain. High 90°, low 71°.
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 Green Brier, 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 Green Brier, 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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