Temperature
45 F at 9 PM; 57 F at its warmest, 2 PM, and 45 F at its coolest, 7 AM.
- Now
- 45F
- 9 PM
- Highest
- 57F
- 2 PM
- Lowest
- 45F
- 7 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Boulder Municipal Airport, Colorado
Small airport in Boulder County, Colorado* WHAT...Sub-freezing temperatures falling to 26 to 32 degrees, coldest over the plains. * WHERE...Front Range Urban Corridor and all of the eastern plains. * WHEN...From midnight tonight to 9 AM MDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
44°
61°/41°
Clear·
Feels like 42°·Light air 4 mph SSW
Alert. A Freeze Warning is in force for Boulder Municipal Airport until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Boulder Municipal Airport is 44° and clear at 9 PM. The dew point is 34°, so the air feels dry and comfortable. Light air from the south-southwest at 4 mph.
Today and tonight. Tonight falls to about 32° by 5 AM, under a mostly clear sky. A freeze: protect plants and pipes. No rain is expected for the rest of the day.
The week. The warmest day ahead is Wednesday, near 78°, and the coolest tomorrow, near 59°. The days ahead look dry. The first freeze could come tomorrow, a low of 31°.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the 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 11 minutes long, 3 minutes shorter than yesterday.
0UV Low
22Air quality
66%Humidity
0%Cloud
Now
9:00 PM
44feels42
now, clear
Today
Oct 15
6141
76%
15mph
Fri
Oct 16
5931
clear day
Sat
Oct 17
7738
clear day
Sun
Oct 18
7545
partly cloudy day
Mon
Oct 19
7144
mostly clear day
Tue
Oct 20
7545
partly cloudy day
Wed
Oct 21
7848
partly cloudy day
44°
61°41°
59°31°
77°38°
75°45°
71°44°
75°45°
78°48°
As of 9:00 PM in Boulder Municipal Airport, Colorado.
Air quality
The air at Boulder Municipal Airport
Index 22, good, led by ozone. Read at 9 PM from its reporting area, Fort Collins (CO), 33 miles off.
22Good
- Ozone22Good-
The days ahead
Good each day through Fri Oct 16, led by fine particles. Yesterday measured 37, good.
GoodModerate
- 37YesterdayOct 14
- GoodTodayOct 15
- GoodFriOct 16
Smoke, the next 46 hours
No smoke near the ground through Sat 6 PM.
Precipitation
What has fallen at Boulder Municipal Airport
0.11 in in the last 24 hours, 1.05 in over the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.11in
- Last 3 days
- 1.05in
3 days agoLast 24 hours 10%
Visibility
How far you can see at Boulder Municipal Airport, the next 46 hours
Visibility stays 10 miles or more through Sat 6 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- BDU
- ICAO
- KBDU
- IATA
- WBU
- Field elevation
- 5,288 ft
- Serves
- Boulder
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- BDU
- Wind now
- From 200° at 3 mph, read 15 Oct, 21:15
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 08 / 26 unlit | 4,100 ft | 75 ft | Asphalt | 90° / 270° | 1 mph head, on 26 | 3 mph from the left |
| 08G / 26G unlit | 4,100 ft | 20 ft | Asphalt | - | - | - |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Boulder (BDU), Boulder Municipal Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 34 F, the air 66% saturated; the humidity ran from 36% at 3 PM to 100% at 10 PM Wednesday.
- Dew point now
- 34F
- 9 PM
- Humidity now
- 66%
- Humidity, range
- 36 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
3 mph from the south southwest at 9 PM; at its strongest 20 mph, 11 AM, with a gust of 30 mph at 12 PM.
- Now
- 3mph
- from the south southwest
- Strongest
- 20mph
- 11 AM
- Highest gust
- 30mph
- 12 PM
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.61 inHg at 9 PM, rising 0.06 inHg over 3 hours; 0.51 inHg higher than a day before.
- Now
- 30.61inHg
- 9 PM
- 3 hours
- +0.06inHg
- rising
- 24 hours
- +0.51inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 4 miles at 10 PM Wednesday; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 4mi
- 10 PM Wednesday
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 300 ft at 1 AM; a base was reported in 17 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 300ft
- 1 AM
- Hours with a base reported
- 17
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.01 in measured in the gauge, the most, 0.01 in, in the hour to 8 AM.
- Last 24 hours
- 0.01in
- Wettest hour
- 0.01in
- 8 AM
- Hours with some
- 1
How it is measured: ASOS, Field Book FB-INS-002
Boulder: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 6 instruments nearest Boulder Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now4 instruments
BoulderBDU
At an airfield/0.0 mi away/5,289 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
Boulder Creek 1 SW OrodellOROC2
At a river or reservoir gauge/6.0 mi away/5,879 ft/591 ft above here
temp, wind, gust, humidity, pressure
Beside a road/12.0 mi away/6,189 ft/901 ft above here
temp, pavement temp, wind, visibility, precip
Boulder 14 W94075
At a climate reference station/16.6 mi away/9,828 ft/4,540 ft above here
temp, humidity, wind, solar, precip
measured daily2 instruments
Boulder 0.8 NECO-BO-462
In a volunteer observer's own ground/0.8 mi away/5,287 ft/1 ft below here
precip, snowfall, snow depth
BoulderBOUC2
At a cooperative observer's station/3.9 mi away/5,489 ft/201 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Boulder (BOUC2), 3.9 miles from here, read 15 Oct, 19:25. 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 Boulder Municipal Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Valmontcommunity, 1 mi
- Gunbarrelcommunity, 3 mi
- Bouldercity, 3 mi
- Paragon Estatescommunity, 5 mi
- Pine Brook Hillcommunity, 5 mi
- Niwotcommunity, 5 mi
- Lazy Acrescommunity, 6 mi
- Seven Hillscommunity, 6 mi
- Louisvillecity, 6 mi
- Leynercommunity, 6 mi
- Eldorado Springscommunity, 7 mi
- Altonacommunity, 7 mi
Airports near Boulder Municipal Airport
- Vance Brand AirportLMO, 9 mi
- Erie Municipal AirportEIK, 10 mi
- Rocky Mountain Metropolitan AirportBJC, 11 mi
- Northern Colorado Regional AirportFNL, 31 mi
- Denver International AirportDEN, 32 mi
- Buckley Space Force BaseBKF, 34 mi
- Granby Grand County AirportGNB, 37 mi
- Centennial AirportAPA, 38 mi