The odds of experiencing 17 consecutive months of above normal temperatures, in the absence of climate change, is about 1 in 100,000. Are we extremely unlucky or is the Earth warming rapidly? 🤔 #COWX #Boulderwx #climate #weather
November 4, 2026 at 9:06 PM
The odds of experiencing 17 consecutive months of above normal temperatures, in the absence of climate change, is about 1 in 100,000. Are we extremely unlucky or is the Earth warming rapidly? 🤔 #COWX #Boulderwx #climate #weather
Few more photos of the edge of the fog Friday morning in Boulder #COwx #boulderwx
October 31, 2026 at 8:03 PM
Few more photos of the edge of the fog Friday morning in Boulder #COwx #boulderwx
October 27, 2026 at 7:21 PM
❄️ HAPPY SNOWVERSARY! 🗓️
Today is the 29th anniversary of Boulder's largest snowstorm in the modern record with data back to 1948.
~30" of wet snow, containing ~2.3" of water, fell over 48 hours. Like this autumn, 1997 was also a very strong El Niño pattern. #COwx #Boulderwx #Colorado #snow #denver
Today is the 29th anniversary of Boulder's largest snowstorm in the modern record with data back to 1948.
~30" of wet snow, containing ~2.3" of water, fell over 48 hours. Like this autumn, 1997 was also a very strong El Niño pattern. #COwx #Boulderwx #Colorado #snow #denver
October 26, 2026 at 4:28 PM
❄️ HAPPY SNOWVERSARY! 🗓️
Today is the 29th anniversary of Boulder's largest snowstorm in the modern record with data back to 1948.
~30" of wet snow, containing ~2.3" of water, fell over 48 hours. Like this autumn, 1997 was also a very strong El Niño pattern. #COwx #Boulderwx #Colorado #snow #denver
Today is the 29th anniversary of Boulder's largest snowstorm in the modern record with data back to 1948.
~30" of wet snow, containing ~2.3" of water, fell over 48 hours. Like this autumn, 1997 was also a very strong El Niño pattern. #COwx #Boulderwx #Colorado #snow #denver
WATER UPDATE 💦
Thu Oct 15, 2026 8:45 AM MDT
Raindrops are still falling into the gauge, but here's where we're at right now...
#COWX #Boulderwx #Rain
Thu Oct 15, 2026 8:45 AM MDT
Raindrops are still falling into the gauge, but here's where we're at right now...
#COWX #Boulderwx #Rain
October 15, 2026 at 2:56 PM
WATER UPDATE 💦
Thu Oct 15, 2026 8:45 AM MDT
Raindrops are still falling into the gauge, but here's where we're at right now...
#COWX #Boulderwx #Rain
Thu Oct 15, 2026 8:45 AM MDT
Raindrops are still falling into the gauge, but here's where we're at right now...
#COWX #Boulderwx #Rain
86° on Friday. Back to back daily record highs tied 🏆
#29 of 2026. 11.2° above normal in October month-to-date.\#COWx #Boulderwx
#29 of 2026. 11.2° above normal in October month-to-date.\#COWx #Boulderwx
October 10, 2026 at 2:50 PM
86° on Friday. Back to back daily record highs tied 🏆
#29 of 2026. 11.2° above normal in October month-to-date.\#COWx #Boulderwx
#29 of 2026. 11.2° above normal in October month-to-date.\#COWx #Boulderwx
October 10, 2026 at 2:50 PM
With a high of 85° on Sunday, Boulder has now tied its FULL calendar year record for number of 80° days at 128 (with 2024) 🥵🏆
This count will undoubtedly increase with a warm, dry first half of October expected in the Front Range 📈 #COWx #Boulderwx #Denver #Colorado #Hot2026
This count will undoubtedly increase with a warm, dry first half of October expected in the Front Range 📈 #COWx #Boulderwx #Denver #Colorado #Hot2026
September 28, 2026 at 3:02 PM
With a high of 85° on Sunday, Boulder has now tied its FULL calendar year record for number of 80° days at 128 (with 2024) 🥵🏆
This count will undoubtedly increase with a warm, dry first half of October expected in the Front Range 📈 #COWx #Boulderwx #Denver #Colorado #Hot2026
This count will undoubtedly increase with a warm, dry first half of October expected in the Front Range 📈 #COWx #Boulderwx #Denver #Colorado #Hot2026
Monday featured the 2nd warmest September night in 55+ years in Boulder, with the overnight low of 66° setting a new daily record warm minimum for September 14th #COwx #Boulderwx #HotNight
September 15, 2026 at 2:45 PM
Monday featured the 2nd warmest September night in 55+ years in Boulder, with the overnight low of 66° setting a new daily record warm minimum for September 14th #COwx #Boulderwx #HotNight
✅ Weekly outlook forecast verification for September 7-11, 2026. Forecast issued 8AM September 7th. Boulder official climate site (when possible) used for verification.
#COWx #Boulder #Boulderwx #Colorado
#COWx #Boulder #Boulderwx #Colorado
September 12, 2026 at 3:21 PM
✅ Weekly outlook forecast verification for September 7-11, 2026. Forecast issued 8AM September 7th. Boulder official climate site (when possible) used for verification.
#COWx #Boulder #Boulderwx #Colorado
#COWx #Boulder #Boulderwx #Colorado
Little but of small hail in this TINY cell entering Boulder now #cowx #boulderwx
September 7, 2026 at 2:41 AM
Little but of small hail in this TINY cell entering Boulder now #cowx #boulderwx
✅ Weekly outlook forecast verification for August 31-September 4, 2026. Forecast issued 8AM August 31st. Boulder official climate site (when possible) used for verification.
1 day of rain totaling 0.02", low compared to the rest of the Metro area. #COWx #Boulder #Boulderwx #Colorado
1 day of rain totaling 0.02", low compared to the rest of the Metro area. #COWx #Boulder #Boulderwx #Colorado
September 6, 2026 at 9:35 PM
✅ Weekly outlook forecast verification for August 31-September 4, 2026. Forecast issued 8AM August 31st. Boulder official climate site (when possible) used for verification.
1 day of rain totaling 0.02", low compared to the rest of the Metro area. #COWx #Boulder #Boulderwx #Colorado
1 day of rain totaling 0.02", low compared to the rest of the Metro area. #COWx #Boulder #Boulderwx #Colorado
Boulder Notches 2nd Hottest August on Record and 15th Consecutive Month Warmer Than Normal🌡️
Plus heaps of other heat records.
And it was another month where the monsoon missed the mark.
It's time for our August 2026 Weather Review: bouldercast.com/august-2026-... #COwx #Boulderwx #weather
Plus heaps of other heat records.
And it was another month where the monsoon missed the mark.
It's time for our August 2026 Weather Review: bouldercast.com/august-2026-... #COwx #Boulderwx #weather
September 4, 2026 at 6:51 PM
Boulder Notches 2nd Hottest August on Record and 15th Consecutive Month Warmer Than Normal🌡️
Plus heaps of other heat records.
And it was another month where the monsoon missed the mark.
It's time for our August 2026 Weather Review: bouldercast.com/august-2026-... #COwx #Boulderwx #weather
Plus heaps of other heat records.
And it was another month where the monsoon missed the mark.
It's time for our August 2026 Weather Review: bouldercast.com/august-2026-... #COwx #Boulderwx #weather
Through September 3rd, the year of 2026 ranks as #1 all-time in Boulder for the number of 60°, 65°, 70°, 75°, 80°, 85°, 95°, and 100° days.
But hey, 2026 does not rank #1 for 90° days. That honor is still held by 2012.... for now. #COwx #Boulderwx #Is2026OverYet #Weather
But hey, 2026 does not rank #1 for 90° days. That honor is still held by 2012.... for now. #COwx #Boulderwx #Is2026OverYet #Weather
September 4, 2026 at 4:33 PM
Through September 3rd, the year of 2026 ranks as #1 all-time in Boulder for the number of 60°, 65°, 70°, 75°, 80°, 85°, 95°, and 100° days.
But hey, 2026 does not rank #1 for 90° days. That honor is still held by 2012.... for now. #COwx #Boulderwx #Is2026OverYet #Weather
But hey, 2026 does not rank #1 for 90° days. That honor is still held by 2012.... for now. #COwx #Boulderwx #Is2026OverYet #Weather
🥇 Unsurprisingly, Summer 2026 was the hottest summer on record in Boulder for daytime highs which averaged 90.4° over the 92 days of meteorological summer (Jun 1-Aug 31). This surpasses the prior record from 2012 by half of a degree. #COWx #Boulderwx #Denver #Boulder #Colorado
September 2, 2026 at 6:45 PM
🥇 Unsurprisingly, Summer 2026 was the hottest summer on record in Boulder for daytime highs which averaged 90.4° over the 92 days of meteorological summer (Jun 1-Aug 31). This surpasses the prior record from 2012 by half of a degree. #COWx #Boulderwx #Denver #Boulder #Colorado
It's been a year...
More record highs notched in Boulder in 2026 than 1900 to 1918 combined. #COwx #Boulderwx #Boulder
More record highs notched in Boulder in 2026 than 1900 to 1918 combined. #COwx #Boulderwx #Boulder
August 31, 2026 at 8:39 PM
It's been a year...
More record highs notched in Boulder in 2026 than 1900 to 1918 combined. #COwx #Boulderwx #Boulder
More record highs notched in Boulder in 2026 than 1900 to 1918 combined. #COwx #Boulderwx #Boulder
✅ Weekly outlook forecast verification for August 24-28, 2026. Forecast issued 8AM August 24th. Boulder official climate site (when possible) used for verification. #COWx #Boulder #Boulderwx #Colorado
August 30, 2026 at 3:58 PM
✅ Weekly outlook forecast verification for August 24-28, 2026. Forecast issued 8AM August 24th. Boulder official climate site (when possible) used for verification. #COWx #Boulder #Boulderwx #Colorado
Boulder quietly set another daily record high temperature on Friday at 97°F. August 28ths record was 96° from 1948.
🌶️ 27th 95°+ day of 2026 (most all-time)
💥 25th daily record tied or broken in 2026 (most all-time)
🥺 49th 90°+ day of 2026
#COWx #Boulder #Boulderwx
🌶️ 27th 95°+ day of 2026 (most all-time)
💥 25th daily record tied or broken in 2026 (most all-time)
🥺 49th 90°+ day of 2026
#COWx #Boulder #Boulderwx
August 30, 2026 at 4:12 PM
Boulder quietly set another daily record high temperature on Friday at 97°F. August 28ths record was 96° from 1948.
🌶️ 27th 95°+ day of 2026 (most all-time)
💥 25th daily record tied or broken in 2026 (most all-time)
🥺 49th 90°+ day of 2026
#COWx #Boulder #Boulderwx
🌶️ 27th 95°+ day of 2026 (most all-time)
💥 25th daily record tied or broken in 2026 (most all-time)
🥺 49th 90°+ day of 2026
#COWx #Boulder #Boulderwx
Most substantial rain in months in Boulder, and some small hail too. Likely 0.25 to 0.75" for most of the city. #COWX #Boulderwx #Hail #Monsoon
August 27, 2026 at 12:22 AM
Most substantial rain in months in Boulder, and some small hail too. Likely 0.25 to 0.75" for most of the city. #COWX #Boulderwx #Hail #Monsoon
✅ Weekly outlook forecast verification for August 17-21, 2026. Forecast issued 8AM August 17th. Boulder official climate site (when possible) used for verification.
#COWx #Boulder #Boulderwx #Colorado
#COWx #Boulder #Boulderwx #Colorado
August 22, 2026 at 2:53 PM
✅ Weekly outlook forecast verification for August 17-21, 2026. Forecast issued 8AM August 17th. Boulder official climate site (when possible) used for verification.
#COWx #Boulder #Boulderwx #Colorado
#COWx #Boulder #Boulderwx #Colorado
August 21st's daily record high temperature of 98° (set in 2023) was likely tied or broken in Boulder earlier this afternoon before clouds started building. A few degrees cooler now with mostly cloudy skies as of 3:15PM. #COwx #boulderwx #Boulder
August 21, 2026 at 9:18 PM
August 21st's daily record high temperature of 98° (set in 2023) was likely tied or broken in Boulder earlier this afternoon before clouds started building. A few degrees cooler now with mostly cloudy skies as of 3:15PM. #COwx #boulderwx #Boulder
💥 Monday was the 22nd record high tied or broken in 2026 for Boulder.... by far the most of any calendar year, besting 1954's 14 record highs. #COWX #Boulderwx #Boulder #weather #denver
August 12, 2026 at 5:03 PM
💥 Monday was the 22nd record high tied or broken in 2026 for Boulder.... by far the most of any calendar year, besting 1954's 14 record highs. #COWX #Boulderwx #Boulder #weather #denver
#SaveNCAR - literally right here in real time capturing a 104mph wind, keeping our first responders ever-vigilant. Thanks @bouldercast.com for excellent reporting! #COwx #Boulderwx
First 100+ MPH gust at NCAR Mesa in SW Boulder occurred at 11AM #COwx #Boulderwx
December 19, 2025 at 6:24 PM
#SaveNCAR - literally right here in real time capturing a 104mph wind, keeping our first responders ever-vigilant. Thanks @bouldercast.com for excellent reporting! #COwx #Boulderwx