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Current weather in St. Mary's is overcast clouds.

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Now · 11:46 PM

St. Mary's Weather & Hourly Forecast

United States · Colorado · 80452

41°F

Overcast night

Feels like: 36°F

💧 Humidity 89% 🌡 Pressure 30.12 inHg 💨 Wind 5 mph 👁 Visibility 28.5 mi ☁ Clouds 99% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:49 AM 🌇 Sunset 7:01 PM

Hourly Weather Forecast for St. Mary's

Tomorrow

12:00 AM

Overcast night

41° 💧 None 💨 5 mph H 89%30.12 inHg

3:00 AM

Mostly cloudy night

40° 💧 None 💨 6 mph H 91%30.09 inHg

6:00 AM

Overcast night

40° 💧 None 💨 6 mph H 88%30.12 inHg

9:00 AM

Overcast

50° 💧 0.004 in 💨 4 mph H 64%30.15 inHg

12:00 PM

Overcast

59° 💧 0.004 in 💨 4 mph H 38%30.09 inHg

3:00 PM

Overcast

56° 💧 0.065 in 💨 6 mph H 49%30.09 inHg

6:00 PM

Overcast

48° 💧 0.006 in 💨 2 mph H 88%30.15 inHg

9:00 PM

Overcast night

47° 💧 0.003 in 💨 0 mph H 86%30.21 inHg

Thursday

12:00 AM

Overcast night

44° 💧 0.002 in 💨 1 mph H 86%30.21 inHg

3:00 AM

Light rain

43° 💧 0.049 in 💨 1 mph H 88%30.21 inHg

6:00 AM

Light rain

43° 💧 0.023 in 💨 1 mph H 93%30.21 inHg

9:00 AM

Light rain

43° 💧 0.076 in 💨 3 mph H 98%30.24 inHg

12:00 PM

Light rain

45° 💧 0.072 in 💨 3 mph H 94%30.24 inHg

3:00 PM

Light rain

48° 💧 0.037 in 💨 6 mph H 85%30.21 inHg

6:00 PM

Overcast

48° 💧 0.028 in 💨 6 mph H 76%30.18 inHg

9:00 PM

Light rain

43° 💧 0.035 in 💨 3 mph H 99%30.24 inHg

Tomorrow

12:00 AM

Overcast night

41° 💧 None 💨 5 mph H 89%30.12 inHg

1:00 AM

Overcast night

41° 💧 None 💨 6 mph H 88%30.09 inHg

2:00 AM

Mostly cloudy night

41° 💧 None 💨 6 mph H 89%30.09 inHg

3:00 AM

Mostly cloudy night

40° 💧 None 💨 6 mph H 91%30.09 inHg

4:00 AM

Mostly cloudy night

40° 💧 None 💨 6 mph H 89%30.09 inHg

5:00 AM

Mostly cloudy night

40° 💧 None 💨 7 mph H 89%30.09 inHg

6:00 AM

Overcast night

40° 💧 None 💨 6 mph H 88%30.12 inHg

7:00 AM

Overcast

40° 💧 None 💨 6 mph H 87%30.12 inHg

8:00 AM

Overcast

44° 💧 None 💨 6 mph H 78%30.15 inHg

9:00 AM

Overcast

50° 💧 None 💨 4 mph H 64%30.15 inHg

10:00 AM

Mostly cloudy

55° 💧 None 💨 4 mph H 52%30.12 inHg

11:00 AM

Overcast

58° 💧 0.004 in 💨 5 mph H 41%30.09 inHg

12:00 PM

Overcast

59° 💧 0.001 in 💨 4 mph H 38%30.09 inHg

1:00 PM

Overcast

60° 💧 0.002 in 💨 1 mph H 35%30.06 inHg

2:00 PM

Overcast

60° 💧 0.001 in 💨 2 mph H 35%30.06 inHg

3:00 PM

Overcast

56° 💧 0.002 in 💨 6 mph H 49%30.09 inHg

4:00 PM

Light rain

50° 💧 0.040 in 💨 3 mph H 81%30.15 inHg

5:00 PM

Light rain

48° 💧 0.022 in 💨 3 mph H 91%30.18 inHg

6:00 PM

Overcast

48° 💧 0.003 in 💨 2 mph H 88%30.15 inHg

7:00 PM

Overcast night

46° 💧 0.001 in 💨 2 mph H 93%30.15 inHg

8:00 PM

Overcast night

46° 💧 0.002 in 💨 1 mph H 91%30.18 inHg

9:00 PM

Overcast night

47° 💧 0.002 in 💨 0 mph H 86%30.21 inHg

10:00 PM

Overcast night

46° 💧 0.001 in 💨 0 mph H 85%30.21 inHg

11:00 PM

Overcast night

45° 💧 None 💨 0 mph H 84%30.21 inHg

Thursday

12:00 AM

Overcast night

44° 💧 None 💨 1 mph H 86%30.21 inHg

1:00 AM

Overcast night

43° 💧 None 💨 1 mph H 87%30.21 inHg

2:00 AM

Overcast night

43° 💧 0.002 in 💨 1 mph H 87%30.21 inHg

3:00 AM

Light rain

43° 💧 0.011 in 💨 1 mph H 88%30.21 inHg

4:00 AM

Light rain

43° 💧 0.018 in 💨 1 mph H 89%30.21 inHg

5:00 AM

Light rain

43° 💧 0.020 in 💨 1 mph H 91%30.21 inHg

6:00 AM

Light rain

43° 💧 0.008 in 💨 1 mph H 93%30.21 inHg

7:00 AM

Light rain

43° 💧 0.007 in 💨 1 mph H 94%30.21 inHg

8:00 AM

Light rain

43° 💧 0.008 in 💨 3 mph H 98%30.24 inHg

9:00 AM

Light rain

43° 💧 0.014 in 💨 3 mph H 98%30.24 inHg

10:00 AM

Light rain

43° 💧 0.023 in 💨 2 mph H 97%30.27 inHg

11:00 AM

Light rain

44° 💧 0.040 in 💨 2 mph H 97%30.27 inHg

12:00 PM

Light rain

45° 💧 0.027 in 💨 3 mph H 94%30.24 inHg

1:00 PM

Light rain

47° 💧 0.024 in 💨 4 mph H 85%30.21 inHg

2:00 PM

Light rain

47° 💧 0.021 in 💨 5 mph H 88%30.21 inHg

3:00 PM

Light rain

48° 💧 0.019 in 💨 6 mph H 85%30.21 inHg

4:00 PM

Light rain

48° 💧 0.013 in 💨 6 mph H 80%30.18 inHg

5:00 PM

Light rain

49° 💧 0.005 in 💨 6 mph H 76%30.18 inHg

6:00 PM

Overcast

48° 💧 0.002 in 💨 6 mph H 76%30.18 inHg

7:00 PM

Light rain

44° 💧 0.006 in 💨 4 mph H 91%30.21 inHg

8:00 PM

Light rain

43° 💧 0.020 in 💨 3 mph H 99%30.24 inHg

9:00 PM

Light rain

43° 💧 0.018 in 💨 3 mph H 99%30.24 inHg

10:00 PM

Light rain

43° 💧 0.009 in 💨 2 mph H 99%30.24 inHg

11:00 PM

Light rain

43° 💧 0.008 in 💨 1 mph H 99%30.24 inHg

Friday

12:00 AM

Mostly cloudy night

43° 💧 0.001 in 💨 0 mph H 99%30.18 inHg

1:00 AM

Partly cloudy night

42° 💧 0.001 in 💨 0 mph H 98%30.18 inHg

2:00 AM

Mist at night

41° 💧 None 💨 0 mph H 100%30.15 inHg

3:00 AM

Fog at night

40° 💧 None 💨 1 mph H 99%30.15 inHg

4:00 AM

Mist at night

39° 💧 None 💨 2 mph H 98%30.12 inHg

5:00 AM

Partly cloudy night

38° 💧 None 💨 3 mph H 95%30.12 inHg

6:00 AM

Partly cloudy night

38° 💧 None 💨 3 mph H 95%30.15 inHg

3:00 PM

Light rain

54° 💧 None 💨 9 mph H 33%30.00 inHg

6:00 PM

Partly cloudy

49° 💧 None 💨 8 mph H 43%30.03 inHg

9:00 PM

Clear night

38° 💧 None 💨 7 mph H 76%30.12 inHg

Saturday

12:00 AM

Clear night

37° 💧 None 💨 9 mph H 83%30.12 inHg

3:00 AM

Mostly clear night

36° 💧 None 💨 11 mph H 84%30.12 inHg

6:00 AM

Clear night

35° 💧 None 💨 10 mph H 83%30.15 inHg

9:00 AM

Sunny

45° 💧 None 💨 7 mph H 55%30.18 inHg

12:00 PM

Sunny

53° 💧 None 💨 8 mph H 35%30.12 inHg

3:00 PM

Mostly sunny

56° 💧 None 💨 8 mph H 32%30.06 inHg

6:00 PM

Sunny

51° 💧 None 💨 6 mph H 37%30.09 inHg

9:00 PM

Clear night

38° 💧 None 💨 4 mph H 61%30.15 inHg

Sunday

12:00 AM

Partly cloudy night

36° 💧 None 💨 4 mph H 59%30.18 inHg

3:00 AM

Clear night

34° 💧 None 💨 5 mph H 71%30.15 inHg

6:00 AM

Partly cloudy night

34° 💧 None 💨 5 mph H 73%30.15 inHg

9:00 AM

Mostly cloudy

48° 💧 None 💨 4 mph H 45%30.15 inHg

12:00 PM

Mostly cloudy

56° 💧 None 💨 6 mph H 27%30.06 inHg

3:00 PM

Mostly cloudy

58° 💧 None 💨 8 mph H 24%29.94 inHg

6:00 PM

Mostly cloudy

51° 💧 None 💨 5 mph H 37%29.97 inHg

9:00 PM

Mostly clear night

41° 💧 None 💨 7 mph H 64%30.00 inHg

Monday

12:00 AM

Partly cloudy night

40° 💧 None 💨 9 mph H 65%30.00 inHg

3:00 AM

Mostly cloudy night

39° 💧 None 💨 8 mph H 61%29.97 inHg

6:00 AM

Sleet

34° 💧 None 💨 8 mph H 89%30.06 inHg

9:00 AM

Rain and snow

40° 💧 None 💨 9 mph H 71%30.03 inHg

12:00 PM

Rain and snow

45° 💧 None 💨 12 mph H 53%29.97 inHg

6:00 PM

Rain and snow

49° 💧 None 💨 6 mph H 54%29.91 inHg

Tuesday

12:00 AM

Mostly clear night

43° 💧 None 💨 7 mph H 77%29.91 inHg

6:00 AM

Light snow

32° 💧 None 💨 5 mph H 96%30.00 inHg

12:00 PM

Overcast

33° 💧 None 💨 7 mph H 97%30.03 inHg

6:00 PM

Mostly sunny

44° 💧 None 💨 10 mph H 48%30.03 inHg

Wednesday

12:00 AM

Clear night

44° 💧 None 💨 6 mph H 47%30.00 inHg

6:00 AM

Clear night

31° 💧 None 💨 7 mph H 82%30.09 inHg

12:00 PM

Sunny

30° 💧 None 💨 7 mph H 69%30.03 inHg

6:00 PM

Sunny

55° 💧 None 💨 6 mph H 21%29.91 inHg

Thursday

12:00 AM

Clear night

52° 💧 None 💨 2 mph H 31%29.80 inHg

6:00 AM

Clear night

39° 💧 None 💨 10 mph H 34%29.83 inHg

12:00 PM

Sunny

39° 💧 None 💨 15 mph H 53%29.83 inHg

6:00 PM

Sunny

46° 💧 None 💨 21 mph H 36%29.85 inHg

Friday

12:00 AM

Clear night

39° 💧 None 💨 10 mph H 23%30.00 inHg

6:00 AM

Clear night

24° 💧 None 💨 8 mph H 57%30.21 inHg

12:00 PM

Sunny

22° 💧 None 💨 10 mph H 58%30.21 inHg

6:00 PM

Sunny

43° 💧 None 💨 14 mph H 19%30.09 inHg

Saturday

12:00 AM

Clear night

39° 💧 None 💨 10 mph H 32%30.12 inHg

6:00 AM

Clear night

26° 💧 None 💨 7 mph H 37%30.21 inHg

12:00 PM

Sunny

27° 💧 None 💨 9 mph H 48%30.15 inHg

6:00 PM

Sunny

48° 💧 None 💨 11 mph H 20%30.09 inHg

Sunday

12:00 AM

Clear night

45° 💧 None 💨 6 mph H 31%30.03 inHg

6:00 AM

Clear night

31° 💧 None 💨 7 mph H 49%30.09 inHg

12:00 PM

Sunny

33° 💧 None 💨 9 mph H 41%30.03 inHg

6:00 PM

Sunny

53° 💧 None 💨 12 mph H 20%29.97 inHg

Monday

12:00 AM

Clear night

49° 💧 None 💨 6 mph H 24%29.94 inHg

6:00 AM

Mostly clear night

35° 💧 None 💨 5 mph H 46%29.94 inHg

12:00 PM

Sunny

35° 💧 None 💨 8 mph H 66%29.94 inHg

6:00 PM

Partly cloudy

52° 💧 None 💨 10 mph H 30%29.85 inHg

Tuesday

12:00 AM

Partly cloudy night

45° 💧 None 💨 2 mph H 53%29.80 inHg

6:00 AM

Mostly clear night

33° 💧 None 💨 3 mph H 74%29.80 inHg

12:00 PM

Mostly sunny

34° 💧 None 💨 11 mph H 74%29.77 inHg

6:00 PM

Light rain

44° 💧 None 💨 10 mph H 52%29.71 inHg

Wednesday

12:00 AM

Mostly cloudy night

40° 💧 None 💨 9 mph H 54%29.68 inHg

6:00 AM

Light snow

26° 💧 None 💨 7 mph H 94%29.88 inHg

12:00 PM

Sunny

17° 💧 None 💨 12 mph H 72%30.03 inHg

In St. Mary's and, more broadly, across the state of Colorado: Clear skies will persist through the evening, with temperatures remaining cool, around 60 degrees Fahrenheit. Winds will be light, coming from the northwest at up to 2 mph, with occasional gusts reaching 6 mph. No precipitation is expected tonight, providing a calm and dry night ahead. Temperatures are likely to stay steady, making for a comfortable evening. Be sure to dress appropriately for the cooler conditions if heading outside. The light breeze will add a slight chill, but overall, conditions will be stable and clear into the early morning hours.

15-Day Weather Forecast for St. Mary's

Thursday, Sep 24Thu Sep 24

Overcast 49°/43° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Light rain 54°/38° 💧 0.705 in 💨 9 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 56°/35° 💧 0.022 in 💨 11 mph

Sunday, Sep 27Sun Sep 27

Partly cloudy 58°/34° 💧 0.002 in 💨 8 mph

Monday, Sep 28Mon Sep 28

Rain and snow 49°/34° 💧 0.108 in 💨 12 mph

Tuesday, Sep 29Tue Sep 29

Light snow 44°/32° 💧 0.413 in 💨 10 mph

Wednesday, Sep 30Wed Sep 30

Sunny 55°/30° 💧 None 💨 7 mph

Thursday, Oct 1Thu Oct 1

Sunny 52°/39° 💧 None 💨 21 mph

Friday, Oct 2Fri Oct 2

Sunny 43°/22° 💧 0.000 in 💨 14 mph

Saturday, Oct 3Sat Oct 3

Sunny 48°/26° 💧 None 💨 11 mph

Sunday, Oct 4Sun Oct 4

Sunny 53°/31° 💧 None 💨 12 mph

Monday, Oct 5Mon Oct 5

Partly cloudy 52°/35° 💧 0.005 in 💨 10 mph

Tuesday, Oct 6Tue Oct 6

Light rain 45°/33° 💧 0.130 in 💨 11 mph

Wednesday, Oct 7Wed Oct 7

Light snow 40°/17° 💧 0.422 in 💨 12 mph

TEMPERATURE OUTLOOK

Hourly Temperature and Weather Conditions in St. Mary's

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality in St. Mary's

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 1,1µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 2,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 42,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

Sun exposure and health risks in St. Mary's

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,3High —Unavailable

Tomorrow UV 6,0High 😊Good

Thursday UV 4,6Moderate 😊Good

Friday UV 6,1High 🙂Fair

Saturday UV 7,1High 🙂Fair

Sunday UV 5,0Moderate —Unavailable

Monday UV 3,0Moderate —Unavailable

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Speed in St. Mary's

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. MARY'S, COLORADO

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

46/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:30 PM–5:21 AM

☁ Cloud cover 68% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon about 5° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 59° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min26%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for St. Mary's were last refreshed today at 11:46 PM. The current forecast period extends through 24/09/2026 at 9:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.