070E23420RWS1MED at Mountain St CO US CDOTCO141
Beside a road/4.0 mi away/8,015 ft/2,101 ft below here
temp, pavement temp, wind, visibility, precip
St. Mary's, Colorado
Community in Clear Creek County, Colorado38°
55°/25°
Clear·
Feels like 32°·Light breeze 8 mph WNW
Now. St. Mary's is 38° and clear at 10 PM. With the wind it feels like 32°. The dew point is 12°, so the air feels dry and comfortable. Light breeze from the west-northwest at 8 mph.
Today and tonight. Tonight falls to about 34° by 7 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots. No rain is expected for the rest of the day. Air quality is moderate (index 61): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is tomorrow, near 57°, and the coolest Monday, near 50°. Rain is possible Thursday (31%). The first freeze could come Tuesday, a low of 32°.
The sky now. The Moon is a waxing crescent, 35% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the south-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 9 minutes long, 3 minutes shorter than yesterday.
0UV Low
61Air quality
43%Humidity
0%Cloud
Now
10:00 PM
38feels32
now, clear
Today
Oct 16
5525
12mph
UV 7
Sat
Oct 17
5733
12mph
UV 6
Sun
Oct 18
5633
partly cloudy day
Mon
Oct 19
5034
20%
Tue
Oct 20
5132
16%
Wed
Oct 21
5433
partly cloudy day
Thu
Oct 22
5235
31%
38°
55°25°
57°33°
56°33°
50°34°
51°32°
54°33°
52°35°
As of 10:00 PM in St. Mary's, Colorado.
Air quality
The air at St. Mary's
Index 61, moderate, led by fine particles. Read at 10 PM from its reporting area, Denver-Boulder (CO), 33 miles off.
61Moderate
- Fine particles (PM2.5)61Moderate24.3 mi
- Ozone35Good-
- Coarse particles (PM10)17Good24.3 mi
The days ahead
Good each day through Sat Oct 17, led by fine particles. Yesterday measured 39, good.
GoodModerate
- 39YesterdayOct 15
- GoodTodayOct 16
- GoodSatOct 17
Smoke, the next 45 hours
No smoke near the ground through Sun 6 PM.
Precipitation
What has fallen at St. Mary's
None in the last 24 hours; 0.75 in over the last 3 days, to Fri 9 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.75in
3 days agoLast 24 hours 0%
Visibility
How far you can see at St. Mary's, the next 45 hours
Visibility stays 10 miles or more through Sun 6 PM.
F
Now, today, and the week
On the radar over St. Mary's, ColoradoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 7 instruments nearest St. Mary's, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.9 miles away.
measured now5 instruments
Rank2,648of 2,688
DumontDMTC2
At a river or reservoir gauge/4.6 mi away/7,962 ft/2,154 ft below here
temp, wind, gust, humidity, pressure
Dakota HillsC99
At an airfield/6.2 mi away/10,892 ft/776 ft above here
temp, wind, gust, visibility, precip, pressure
Boulder 14 W94075
At a climate reference station/15.8 mi away/9,828 ft/288 ft below here
temp, humidity, wind, solar, precip
Citizen station CW5469CW5469
In a volunteer observer's own ground/20.8 mi away/8,868 ft/1,248 ft below here
temp, humidity, wind, precip, pressure
measured daily2 instruments
Dumont 2.7 NWCO-CC-6
In a volunteer observer's own ground/1.9 mi away/9,331 ft/785 ft below here
precip, snowfall, snow depth
GeorgetownGEOC2
At a cooperative observer's station/7.5 mi away/8,507 ft/1,609 ft below here
snowfall, snow depth, precip, high, low
Station report
The weather at 070E23420RWS1MED at Mountain St CO US CDOT, drawn
The nearest instrument reporting now, 4.0 mi from St. Mary's, Colorado. From its report of Oct 16, 2026, 9:38 PM local time: 3 of its 6 sheets.
The sky
No cloud reported; visibility 1.25 mi.
The air
32.2 F with a dew point of 23.8 F, 71 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,900 ft up.
The wind
From the north (0 degrees) at 1 mph, gusting 4 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 18 mph.
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Georgetown (GEOC2), 7.5 miles from here, read 16 Oct, 08:00. measured daily
Elsewhere in Colorado
41 places, each with its own forecast and its own instruments.
AlamosacityArapahoe Basinsurveyed ski areaAspen Highlandssurveyed ski areaAspen Mountainsurveyed ski areaBeaver Creeksurveyed ski areaBerthoud PassfeatureBouldercityBreckenridgesurveyed ski areaButtermilksurveyed ski areaColorado SpringscityCopper Mountainsurveyed ski areaCrested Buttesurveyed ski areaDenvercityDurangocityEldoraski areaFort CollinscityGranby Ranchski areaGrand JunctioncityGunnisoncityHowelsen Hillski areaIndependence PassfeatureKeystonesurveyed ski areaLeadvillecityLoveland PassfeatureLoveland Ski Areaski areaMount ElbertfeaturePowderhornski areaPueblocityPurgatoryski areaSilvertontownSilverton Mountainski areaSki Cooperski areaSnowmasssurveyed ski areaSteamboatsurveyed ski areaSteamboat SpringscitySunlight Mountainski areaTelluridesurveyed ski areaVailsurveyed ski areaWinter Parksurveyed ski areaWolf Creekski areaWolf Creek Passfeature
Near St. Mary's
The nearest places, each with its own forecast and the instruments nearest it.
- Downieville-Lawson-Dumontcommunity, 4 mi
- Empiretown, 4 mi
- Berthoud Passfeature, 7 mi
- Centralcity, 7 mi
- Georgetowntown, 8 mi
- Winter Parksurveyed ski area, 8 mi
- Black Hawkcity, 8 mi
- Idaho Springscity, 9 mi
- Silver Plumetown, 9 mi
- Eldoracommunity, 10 mi
- Winter Parktown, 10 mi
- Eldoraski area, 10 mi