Weather in St. Mary's, CO
St. Mary's, Sunday, 1 November, 00:09
Clear. Feels like 18°. High 44°, low 28°.
0.59
St. Mary's, Monday, 2 November
Snow. High 33°, low 25°.
0.02St. Mary's, Tuesday, 3 November
Light snow. High 35°, low 20°.
0
St. Mary's, Wednesday, 4 November
Clear. High 39°, low 19°.
0St. Mary's, Thursday, 5 November
Clear. High 40°, low 16°.
0
St. Mary's, Friday, 6 November
Mostly clear. High 35°, low 20°.
0
St. Mary's, Saturday, 7 November
Overcast. High 35°, low 21°.
0
St. Mary's, Sunday, 8 November
Partly cloudy. High 42°, low 21°.
0St. Mary's, Monday, 9 November
Overcast. High 43°, low 25°.
0St. Mary's, Tuesday, 10 November
Overcast. High 38°, low 23°.
0St. Mary's, Wednesday, 11 November
Clear. High 37°, low 21°.
0.36St. Mary's, Thursday, 12 November
Snow. High 25°, low 15°.
0St. Mary's, Friday, 13 November
Partly cloudy. High 35°, low 15°.
0St. Mary's, Saturday, 14 November
Overcast. High 44°, low 21°.
0St. Mary's, Sunday, 15 November
Overcast. High 40°, low 26°.
0St. Mary's, Monday, 16 November
Overcast. High 34°, low 24°.
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. Mary's, CO 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. Mary's, CO 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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