Weather in St. Clair, MO
St. Clair, Saturday, 8 August, 15:44
Clear. Feels like 100°. High 89°, low 69°.
0
St. Clair, Sunday, 9 August
Overcast. High 98°, low 72°.
0
St. Clair, Monday, 10 August
Mostly clear. High 101°, low 76°.
0.03
St. Clair, Tuesday, 11 August
Light rain. High 105°, low 75°.
0.02St. Clair, Wednesday, 12 August
Light rain. High 89°, low 71°.
0.18St. Clair, Thursday, 13 August
Light rain. High 89°, low 70°.
0St. Clair, Friday, 14 August
Light rain. High 81°, low 65°.
0St. Clair, Saturday, 15 August
Overcast. High 85°, low 57°.
0.17St. Clair, Sunday, 16 August
Light rain. High 79°, low 64°.
0.23St. Clair, Monday, 17 August
Rain. High 101°, low 73°.
0St. Clair, Tuesday, 18 August
Overcast. High 92°, low 74°.
0St. Clair, Wednesday, 19 August
Mostly clear. High 98°, low 73°.
0.01St. Clair, Thursday, 20 August
Light rain. High 85°, low 73°.
0.04St. Clair, Friday, 21 August
Light rain. High 82°, low 70°.
0St. Clair, Saturday, 22 August
Overcast. High 87°, low 67°.
0St. Clair, Sunday, 23 August
Overcast. High 76°, low 62°.
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 St. Clair, MO 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 St. Clair, MO 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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