Weather in St. Marys, IA
St. Marys, Monday, 26 October, 11:44
Overcast. Feels like 61°. High 68°, low 50°.
0.14
St. Marys, Tuesday, 27 October
Rain. High 68°, low 52°.
0.01St. Marys, Wednesday, 28 October
Light rain. High 73°, low 57°.
0.06St. Marys, Thursday, 29 October
Rain. High 68°, low 56°.
0.28St. Marys, Friday, 30 October
Light rain. High 68°, low 53°.
0.26St. Marys, Saturday, 31 October
Rain. High 69°, low 57°.
0
St. Marys, Sunday, 1 November
Clear. High 65°, low 51°.
0.25St. Marys, Monday, 2 November
Rain. High 60°, low 53°.
0.77St. Marys, Tuesday, 3 November
Heavy rain. High 53°, low 46°.
0
St. Marys, Wednesday, 4 November
Partly cloudy. High 57°, low 38°.
0St. Marys, Thursday, 5 November
Overcast. High 64°, low 47°.
0St. Marys, Friday, 6 November
Overcast. High 64°, low 43°.
0St. Marys, Saturday, 7 November
Clear. High 50°, low 36°.
0St. Marys, Sunday, 8 November
Overcast. High 56°, low 38°.
0St. Marys, Monday, 9 November
Overcast. High 56°, low 44°.
0.11St. Marys, Tuesday, 10 November
Light rain. High 59°, low 52°.
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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