Outdoor conditions in

St. Mary's

Colorado
Now
  1. 27°Snow Showers Likely71% rain81% humidityGusts 24 mph
  2. 26°Chance Snow Showers47% rain88% humidityGusts 24 mph
  3. 26°Chance Snow Showers47% rain88% humidityGusts 22 mph
  4. 26°Chance Snow Showers47% rain92% humidityGusts 21 mph
  5. 26°Slight Chance Snow Showers19% rain88% humidityGusts 21 mph
  6. 26°Slight Chance Snow Showers19% rain85% humidityGusts 21 mph
  7. 28°Slight Chance Snow Showers19% rain78% humidityGusts 18 mph
  8. 28°Mostly Cloudy5% rain78% humidityGusts 18 mph
  9. 28°Mostly Cloudy5% rain75% humidityGusts 15 mph
  10. 28°Partly Sunny5% rain75% humidityGusts 12 mph
  11. 24°Mostly Clear0% rain81% humidityGusts 9 mph
  12. 22°Partly Cloudy0% rain81% humidityGusts 12 mph
  13. 21°Partly Cloudy0% rain74% humidityGusts 15 mph
  14. 19°Mostly Clear0% rain74% humidityGusts 18 mph
  15. 19°Mostly Clear0% rain62% humidityGusts 18 mph
  16. 18°Mostly Clear0% rain53% humidityGusts 16 mph
  17. 18°Mostly Clear0% rain49% humidityGusts 16 mph
  18. 18°Mostly Clear0% rain46% humidityGusts 16 mph
  19. 18°Mostly Clear0% rain44% humidityGusts 16 mph
  20. 17°Mostly Clear0% rain44% humidityGusts 15 mph
  21. 17°Mostly Clear0% rain42% humidityGusts 15 mph
  22. 17°Mostly Clear0% rain38% humidityGusts 15 mph
  23. 16°Sunny0% rain56% humidityGusts 16 mph
  24. 18°Sunny0% rain51% humidityGusts 15 mph
Extra care for

A little farther out

The next five days

Today

Today brings notable cold.

Rain
71%
Humidity
53–92%
Wind
24 mph
Fri

Friday brings notable cold.

Rain
0%
Humidity
26–57%
Wind
26 mph
Sat

Saturday looks breezy.

Rain
0%
Humidity
21–51%
Wind
32 mph
Sun

Sunday looks breezy.

Rain
5%
Humidity
27–61%
Wind
30 mph
Mon

Monday looks fairly quiet.

Rain
6%
Humidity
35–69%
Wind
17 mph
  1. 28° / 18°Today brings notable cold.71% rain · Humidity 53–92% · Wind 24 mph
  2. 38° / 16°Friday brings notable cold.0% rain · Humidity 26–57% · Wind 26 mph
  3. 48° / 28°Saturday looks breezy.0% rain · Humidity 21–51% · Wind 32 mph
  4. 43° / 31°Sunday looks breezy.5% rain · Humidity 27–61% · Wind 30 mph
  5. 43° / 31°Monday looks fairly quiet.6% rain · Humidity 35–69% · Wind 17 mph

Environmental watch

Air quality + smoke

Air quality

Denver-Boulder area · Updated Thu 8:25 AM
42GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 6:45 AM

Air near ground42 · Good US AQI

Rain, in motion · Past four hours

St. Mary's radar

Ready when you areSee what is moving toward St. Mary's.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

Outdoor fire check

Thinking about a backyard fire?

Use extra caution.

There is no lower-concern three-hour stretch in the next 12 hours.

Next 12 hoursChoose a time to see what is driving the concern.
Selected timeNowUse caution

Sustained wind is 15 mph. Gusts may reach 24 mph. Thunder is possible.

Humidity
81%
Wind
15 mph
Gusts
24 mph

Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.

Nearby regional view

Explore Boulder

About 23 miles away, the Boulder hub looks more deeply at Boulder, CO. It reflects that wider area rather than St. Mary's’s exact conditions.

About these readingsSources and local limits

Weather

Forecasts, alerts, and radar come from NOAA and the National Weather Service.

Air quality

This reading describes Denver-Boulder area, about 33 miles away. Conditions can differ at this exact spot.

Smoke

Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.

This page represents St. Mary's, CO, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.