BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 4hToday’s *Premium* storm update breaks down how this once‑promising setup unraveled, why southern Colorado is now squarely in the bullseye and what scraps of moisture the Front Range can still squeeze out as the system passes by to our south: bouldercast.com/storm-update... #COwx #Denver 050
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 18h💦 Polo's remnants getting rapidly pulled northward toward the American Southwest. Flooding ongoing across large portions of New Mexico and Arizona this evening. #COWx #NMwx #AZwx #Polo #FlashFlood 1459
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 18hNew rainfall projections are in for the Boulder-Denver area. Beneficial rain is nearly off the table now. Best chance to see rain is south of I-70 Wednesday afternoon and evening. Further north and west you are, the greater the chance you may be skipped entirely. #COWX 2100
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19hTwo baldies high up in a dead tree, enjoying the quiet Tuesday afternoon, watching over a dry, barren field of prairie dogs #cowx 0150
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 20hTUESDAY 9/29 3:00PM UPDATE: Goodbye, Flood Watches! It's not often you see a Flood Watch cancelled, but that's how this storm is going. The four zones closest to Denver have been dropped as the big, wet Southwest soaker trends further southeast away from the Front Range. #COWX #Colorado #denver 161
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 23hAnd apparently it's turned into a really nice Tuesday afternoon...😩 #COwx 0120
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 23h📉 Another storm collapse seems imminent for the Front Range as the more southern track of #Polo's remnant low appears favored. The trusty Euro model was one of the few showing a deluge in #Denver all along. It's now joined the drier crowd in its last few runs. #COWX #Colorado 1161
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 29/09/2026TUESDAY 9/29 10AM UPDATE 💦🌀 Will it be a soaker or a near miss for Denver? We break down why the models are struggling, what the key track differences mean for your neighborhood & where flooding and snow may become real concerns as the storm unfolds: bouldercast.com/a-soaker-or-... #COwx #Colorado 091
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026MONDAY 9/28 1PM UPDATE: Flood Watches continue to creep northward in Colorado for this week as it becomes more certain that the heaviest bands of rain will setup further north Tuesday night through Wednesday. #COwx #Denver #colorado #weather 2182
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026Nothing screams fall like a huge, persistent Western heatwave for the first half of October... #COWx #Colorado #Drought #Denver 591
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026Well, at least all of Colorado has received at least 2 inches of rain this summer! Wait... #COWX #Boulder #Weather 2200
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026Now Category 3 Hurricane Polo will make landfall in Baja California later today before moving across the very warm Gulf of California into Sonora as it weakens. Polo has definitely taken the scenic route on the way to influencing Colorado's weather... #COwx #polo #colorado #Monsoon 1216
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026With 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 180
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026FRONT RANGE WEATHER UPDATE MONDAY 9/28 8:00 AM MDT A Big Soaker for the State This Week, But Denver’s Forecast Remains Uncertain 🌧️ #Cowx #colorado #denver #weather #Monsoon #Polo 190
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026UPDATE: SUNDAY 9/27 5:30 PM ☔️ Quick Thoughts on Heavy Rain Potential This Week We're continue to track the potential for widespread, soaking rainfall in the Denver Metro area later this week .... 😀 #COWX #Denver #colorado #weather 2190
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 28/09/2026Denver received more rain on Friday (1.10") than Boulder has had in the last 9 weeks combined (0.96") #COWx #Denver #weather 091
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 27/09/2026The tundra is popping off right now 😍 🏔️ #cowx #colorado 0425
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 26/09/2026✅ Weekly outlook forecast verification for September 21-25, 2026. Forecast issued 8AM Sep 21st. Boulder official climate site (when possible) used for verification. ☔️ 3 days of rain = 0.10" Boulder, 1.18" Denver 🎯17° total error, largest Friday #COWx #Monsoon #Colorado 140
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 26/09/2026About an hour of steady light rain in the books in Boulder. Best rain of the week. Could have been better. #cowx 090
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 25/09/20263:40PM FRI 9/25: Rain and thunder. Pockets of heavy rain, gusty winds, small hail, and a sprinkle of landspouts. #cowx 080
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 25/09/20262:15PM FRI 9/25 UPDATE: A nice-looking line of showers and thunderstorms are building across the higher terrain now and will be pushing through Boulder/Denver soon, then gone by early evening. Brief heavy rain, gusty winds, small hail, localized flooding possible #COWX 170
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 25/09/2026The Euro model continues to advertise the remnants of Category 5 Hurricane #Polo making a beeline directly into the #Denver area next week leading to several inches of rain and heavy mountain snow across #Colorado. Still a fairly low-chance outcome, but we will be watching #COWx 4294
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 24/09/2026September 24th throwback. Can you guess the 14er? #COWx 160
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 24/09/2026.....PACIFIC TROPICAL UPDATE.... The ongoing historic El Niño event is keeping the eastern Pacific very active in late September... #COWX 161
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 24/09/2026Snowy Pikes Peak, Colorado this morning 🥶 #COwx #Colorado #Denver #weather 0131
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 24/09/2026Colorado Forecast Update: Thursday Gloom, a Beautiful Weekend and Some Big, Wet Questions for Next Week Beyond Thursday's gloom and the quiet weekend, the forecast becomes much less certain as the first significant autumn trough approaches: bouldercast.com/colorado-for... #COwx #Monsoon #Polo 040
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 23/09/2026So many clouds! High temperatures busted by 5-10° today depending on your source and the prospects for rain look bleak in the Front Range. Not likely to see more than a few drops or few hundredths it seems today and tonight. #COWX 1130
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 23/09/2026⛈️ What will likely be the final monsoon surge of the season will bring gloomy skies, but limited rain to the Denver area the next few days 🍜 Highs in the 60s Thursday will require dusting off your favorite soup recipe 🥳 Plus 90° season is all but over #COwx #monsoon #denver #colorado #weather 1100
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 23/09/2026TUE 9/22/26 7:45PM: A slow moving torrential thunderstorm this evening has prompted a Flash Flood Warning southeast of Denver. Includes Parker, Centennial and Lone Tree where up to 2 inches of rain has fallen. #COWX #FlashFloood #Colorado #Denver #weather 251
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 22/09/2026Hurricane hunter aircraft just measured the central pressure in #Polo at 889 mb, the 2nd lowest ever in the eastern Pacific basin (behind 2015's Patricia 872 mb). 050
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 22/09/2026Accumulating snow and dangerous lightning will impact most of Colorado's highest peaks this week. Which late-season 14er are you attempting? bouldercast.com/summitcast-h... #COWX #Colorado #COsnow 062
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 22/09/2026When the entire state of New Mexico gets more rain this week than Boulder has seen in the last 4 months... #COWX #NMwx 2265
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 22/09/2026Happy Fall! The long-awaited autumnal equinox brings an official end of summer this evening at 6:05 PM MDT. Now if we can just get some fall weather going... 🍂☃️ #COWx #Fall #Denver #colorado #Autumn #Snow 2132
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 22/09/2026In just 30 hours, Hurricane #Polo off the western Mexican coast explosively intensified from a weak tropical storm with 45 MPH sustained winds and a pressure of 1003 millibars to a Category 5 monster hurricane with 165 MPH winds at 920 millibars. Incredible. 2120
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 21/09/2026Following a record low snow season and an all-time record warm summer, the Arapaho Glacier in western Boulder County is looking rough, even compared to just a decade ago 🧊📉 #COWx #colorado #glacier #Boulder #Denver 0131
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 21/09/2026This Week in Colorado Weather: More Clouds, More Moisture and More Missed Opportunities 😢🏜️ We break down why the pattern looks so active on paper, why the Front Range keeps missing out, and what late‑week changes might finally nudge storm chances upward: bouldercast.com/this-week-in... #COwx 140
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 21/09/2026Loving these cooler nights in the Front Range! Would you believe even this morning's values are still several degrees above normal? It's been the kind of summer... #COWX #Denver #weather 080
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19/09/2026SATURDAY 9/19 3:15PM: A line of big storms blew up just east of Denver this afternoon with damaging wind/hail. Only a few sprinkles here in Boulder so far. Still expecting a wave of scattered showers and storms to impact the Metro from 5 to 10PM. Severe risk is done here #COwx 1191
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19/09/2026A Denver area icon, St Mary's Glacier, is gone for now. These are the earliest pictures we have of the snowfield. August 23 2014. It was HUGE then, ~0.5 mile long, stretching from way up in the tundra down into the trees by the lake #COWx #Colorado #Denver 2234
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19/09/2026⚠️ SEVERE STORMS THIS WEEKEND IN DENVER AREA ⛈️ We've had plenty of moisture, clouds, & light rain all week, but this weekend SUNSHINE & SHEAR return to eastern Colorado! Scattered storms will develop after 1PM Saturday, with areas along/east of I-25 at risk for damaging winds & 1.25" hail until 6PM. 182
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19/09/2026✅ Weekly outlook forecast verification for September 14-18, 2026. Forecast issued 8AM Sep 14th. Boulder official climate site (when possible) used for verification. 💦 4 days of rain = 0.21" 🎉 No 90s! 🆒Cooler days and nights 🌡️ 11° of total error #COWx #Monsoon #Colorado 0110
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 19/09/2026Four of the last five days have produced a few hundredths of an inch of rainfall. It adds up, they say. 🌧️ #cowx 0100
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 18/09/2026FRIDAY 9/18 4PM: Rain at last. Looking good for most everyone in the Metro area to see a little something this evening. Enjoy 🌧️ #cowx 0140
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 18/09/2026🔁 For the 8th week in a row, Boulder County's drought classifications have not shifted: 84% Extreme Drought (D4), 16% Severe Drought (D3). #COwx #Boulder #weather 172
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 17/09/2026💦📏 Impressive monsoon rainfall totals in Colorado's Mountain towns so far this week, and plenty more to come! #Colorado #COwx #Monsoon 0110
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 17/09/2026Over the last 75+ years, Boulder and Denver have only seen precipitable water values climb above 1.30" in September during the great 2013 Flood (multiple days in a row!). However, if forecasts verify, later today should join that rare club 🌊💦 #COWX #Boulder #Denver #Monsoon 2151
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 17/09/2026New September 17th daily PWAT record set in Grand Junction at 1.26". Measured via weather balloon Wednesday evening. Prior record 0.99". #COWx 040
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 17/09/2026We currently have September moisture levels not seen in Colorado since the 2013 Flood, but with a lack of forcing, will it actually translate into much rain? 💦🤔🌧️ This and more in our latest *Premium* weekend outlook: bouldercast.com/this-weekend... #COwx #Monsoon #Denver #Colorado 281
BoulderCAST Weather 🏔️⛈️ @bouldercast.com · 17/09/2026WED 8:30 PM UPDATE: Radar is very busy this evening across Colorado as tropical moisture surges into the state. It will be a wet, stormy night in the Mountains, with only scattered light showers or sprinkles favored in Boulder and Denver. #COWx #Denver #weather 1120