- National Weather Service sees widespread warmth, with varied rainfall
- Old Farmer’s Almanac warns of record-breaking heat building into summer
- Farmers’ Almanac projects a relentless stretch of high temperatures
- Weather.com signals extreme June warmth, month-by-month changes ahead
- AccuWeather predicts sharp east-to-west heat gradient across Colorado
- Forecast accuracy: Still more reliable short-term than long-term
A summer scorcher in the making across Colorado
The summer of 2025 is shaping up to be another unrelenting season of heat across Colorado, with a strong consensus among major meteorological sources pointing toward above-average temperatures. While there are some differences in how intense the heat will be and slight nuances near state borders, the overall message is clear: cooler days will be few and far between.
National Weather Service sees widespread warmth, with varied rainfall
The National Weather Service (NWS) predicts a 60% to 70% likelihood of above-average temperatures in the western third of the state, while the rest of Colorado shows 50% to 60% probability, and even the northeastern corner holds a 40% to 50% chance of exceeding historical norms.
On the precipitation front, NWS offers a touch more optimism. It expects average rainfall in the southwest quarter, and 33% to 40% above-average precipitation across most other areas, suggesting drought conditions may not be as severe—at least in terms of rainfall expectations.
Old Farmer’s Almanac warns of record-breaking heat building into summer
The Old Farmer’s Almanac reinforces the trend, describing a hot and dry season for nearly the entire state. June is expected to begin somewhat mild, with temperatures near normal in most areas. But as July and August approach, so does potentially record-breaking heat.
“Predictions indicate a gradual buildup to record-breaking heat,” says the Almanac. Even though northwest Colorado might be slightly cooler, the rest of the Centennial State is in line for above-average temperatures that mirror national trends.
Farmers’ Almanac projects a relentless stretch of high temperatures
Calling for a “scorching” summer, the Farmers’ Almanac echoes concerns about a long, hot season with average precipitation for Colorado and the north-central U.S..
Editor Sandi Duncan notes: “July may be the month when records are broken nationwide,” adding to the general outlook of persistent and intense warmth throughout the state.
Weather.com signals extreme June warmth, month-by-month changes ahead
According to The Weather Channel and Weather.com, June 2025 will place all of Colorado in the “most above average” zone for temperature—meaning this month could see the widest departure from typical values across the U.S.
July brings above-average heat to southern and eastern Colorado, while the northwest transitions to a slightly milder outlook. In August, nearly every part of the state returns to above-normal conditions, with rainfall slightly below average across all regions during the June–August period.
AccuWeather predicts sharp east-to-west heat gradient across Colorado
AccuWeather expects rising temperatures statewide, with the intensity increasing from west to east. The western half may see 1–2°F (0.5–1.1°C) above normal, the central region between 2–3°F (1.1–1.7°C) above, and the eastern plains potentially exceeding 3°F (1.7°C) above average.
Denver may log as many as 60 to 66 days in the 90s (°F)—that’s 32 to 35°C—during this hot spell. Rainfall is expected to vary, with the northern and eastern borders at 50%–74% of normal, while other parts may receive 75% to 124% of typical precipitation levels.
Forecast accuracy: Still more reliable short-term than long-term
Forecast reliability is always in question when stretching months into the future. The National Weather Service estimates 90% accuracy for a five-day forecast, but only 50% accuracy beyond 10 days. The Old Farmer’s Almanac claims 80% historical accuracy, but its most recent winter outlook only hit 64%. Similarly, the Farmers’ Almanac is generally around 50% accurate, despite its higher claims.
As Colorado faces a volatile and increasingly unpredictable climate, the summer of 2025 looks likely to echo or even outdo last year’s heat, setting the stage for intense weather impacts across the state’s urban corridors, mountain towns, and plains alike.
