Weather in St. Marys, IA
St. Marys, Saturday, 14 November, 17:47
Clear. Feels like 37°. High 45°, low 23°.
0
St. Marys, Sunday, 15 November
Partly cloudy. High 49°, low 25°.
0
St. Marys, Monday, 16 November
Mostly clear. High 53°, low 30°.
0
St. Marys, Tuesday, 17 November
Clear. High 56°, low 36°.
0
St. Marys, Wednesday, 18 November
Overcast. High 59°, low 45°.
0St. Marys, Thursday, 19 November
Overcast. High 59°, low 45°.
0.02
St. Marys, Friday, 20 November
Light rain. High 62°, low 40°.
0.06St. Marys, Saturday, 21 November
Light rain. High 61°, low 46°.
0St. Marys, Sunday, 22 November
Partly cloudy. High 47°, low 37°.
0St. Marys, Monday, 23 November
Mostly clear. High 46°, low 32°.
0St. Marys, Tuesday, 24 November
Overcast. High 45°, low 35°.
0St. Marys, Wednesday, 25 November
Overcast. High 46°, low 42°.
0St. Marys, Thursday, 26 November
Overcast. High 52°, low 44°.
0.48St. Marys, Friday, 27 November
Rain. High 48°, low 46°.
0.02St. Marys, Saturday, 28 November
Light rain. High 54°, low 49°.
0.17St. Marys, Sunday, 29 November
Rain. High 54°, low 46°.
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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