Weather in St. Marys, IA
St. Marys, Monday, 2 November, 09:06
Rain. Feels like 60°. High 65°, low 59°.
0.81St. Marys, Tuesday, 3 November
Rain. High 66°, low 50°.
0
St. Marys, Wednesday, 4 November
Overcast. High 56°, low 49°.
0St. Marys, Thursday, 5 November
Light rain. High 54°, low 48°.
0St. Marys, Friday, 6 November
Overcast. High 53°, low 42°.
0.02St. Marys, Saturday, 7 November
Light rain. High 56°, low 37°.
0.01St. Marys, Sunday, 8 November
Light rain. High 50°, low 46°.
0St. Marys, Monday, 9 November
Overcast. High 59°, low 38°.
0
St. Marys, Tuesday, 10 November
Partly cloudy. High 55°, low 39°.
0St. Marys, Wednesday, 11 November
Overcast. High 58°, low 42°.
0St. Marys, Thursday, 12 November
Overcast. High 48°, low 37°.
0St. Marys, Friday, 13 November
Overcast. High 50°, low 36°.
0.34St. Marys, Saturday, 14 November
Rain. High 44°, low 40°.
0.15St. Marys, Sunday, 15 November
Light rain. High 47°, low 41°.
0
St. Marys, Monday, 16 November
Mostly clear. High 46°, low 33°.
0
St. Marys, Tuesday, 17 November
Clear. High 52°, low 38°.
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. Marys, IA 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. Marys, IA 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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