BoulderCAST Weather 🏔️⛈️

We're BoulderCAST, a team of Front Range meteorologists. Providing timely, accurate weather intelligence to the local community and our clients since 2014.

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

5PM Thursday: Denver currently at 88°, and Boulder sitting very close to 90°. There's a decent chance today becomes the first 90° day of 2026 in one or both cities.

This map shows the # of observed 90° days so far in 2026 from stations across the Metro area (not including today). Official stations circled. #COWx #Boulder #Denver #colorado

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

May 2026 Front Range Weather Review: A Tale of Two Storms — Damaging Snow and a Deluge of Rain Put a (Small) Dent in the Drought 📊🏔️💦

We look at how May unfolded across Boulder, Denver, and the Front Range — and how it compared to climatology: https://t.co/oCeHOuxpEv #COwx

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Early-Season Heat Ramps Up — First 90s of the Year on the Horizon 🥵📈

A building ridge brings our first real heat surge of 2026, with highs jumping into the 90s and only isolated, storms surviving the dry air.

This & more in our latest *Premium* weekend outlook: https://t.co/vyxW0U4M2p #COwx

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Similar to yesterday, the SPC has added Boulder and Denver to a Marginal Risk of severe storms on Wednesday. Scattered storms from 2-6PM will contain moderate to heavy rain, small hail and gusty winds. 1 or 2 cells may have 1" hail and 60 MPH wind gusts #COWX

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Colorado statewide snowpack sits at just 13% of normal today, the 3rd worst on record behind 2002 and 2012. Snowpack melt off is running about two weeks ahead of schedule #COWx #Colorado #Snowpack #Drought

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

That Colorado sunset tonight 😁 #cowx

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Raining in Boulder with some thunder. These cells aren't severe yet, but let's see what happens as they come down off the terrain #cowx

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

⚠️ New SPC update now includes Boulder and Denver at Marginal Risk for severe storms Tuesday. The primary concern is hail up to 1.5" in diameter from Noon to 4PM. Risk is lower than yesterday.

⛈️ Keep an eye on the darkening skies! #cowx #hail #denver

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Thanks mostly to the two big precip events in May, one snow and one rain.

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

💦 For the first time since September, Boulder has finished a month with more than one inch of precipitation #COWx #Boulderwx

[Z N O R G @Znorgage]

Video of the hail storm in Denver from my friend working at the Civic Center Park project. 🧊⛈️ #cowx @BianchiWeather @CReppWx @9NEWSWeather @NWSBoulder @BoulderCAST @spann

[NWS Boulder @NWSBoulder]

Tornado Warning including Adams County, CO, Arapahoe County, CO until 3:15 PM MDT

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

Lime-sized hail in the cell in Commerce City heading for DIA 🍋‍🟩 💥

That said, the severe risk nose dives as this initial wave of storms moves out of the Boulder-Denver area. Just weak storms and showers into the evening

#cowx

[Roddy @JJProwe]

Helluva hail storm downtown - up to about 1.25” but hard to tell because most of the larger hailstones were smashing on impact. @NWSBoulder @BianchiWeather @BoulderCAST

[NWS Boulder @NWSBoulder]

Severe Thunderstorm Warning including Aurora CO, Denver Intl Airport CO and Commerce City CO until 2:30 PM MDT. This storm will contain two inch sized hail!

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

This Week in Colorado Weather: Afternoon Storm Roulette Returns, Including Some Severe, But Weekend Heat is Brewing ⛈️🥵

We break down what to expect as the Front Range rides out this transitional stretch of early June: https://t.co/Mmt3px9w0k #COwx #Hail #Colorado #Denver

[Z N O R G @Znorgage]

Wow beefy looking storm developing over the Arvada area in the last half an hour! ⛈️🤗 #cowx @BianchiWeather @CReppWx @NWSBoulder @BoulderCAST @norgrenam

[BoulderCAST Weather 🏔️⛈️ @BoulderCAST]

@NaturisticNate Nice shot! Los of landspouts yesterday