Will it rain in
Denver today?
Live hourly rain forecast and run verdict for Denver, Colorado, US.
Running in Denver means adjusting to mile-high altitude, intense UV, and weather that changes by the hour. Whether it's a bluebird morning that turns into an afternoon hailstorm, a winter run on snow-packed trails, or dry heat that dehydrates you fast, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Denver right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Denver's high-altitude weather is throwing at you today.
What to wear
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How often does it rain in Denver?
Denver records around 443mm of rain a year, spread across about 79 days — roughly 22% of all days, or 7 days in an average month. Rain is rarely the thing that stops a run in Denver. You can plan a training week without building it around the forecast, and a packable jacket is more insurance policy than staple.
The wettest month is May, averaging 98mm across about 13 rainy days. The driest is December, with 16mm over roughly 4 days. Average lows in January drop to -9.3°C, cold enough that gloves, a headband and a thermal base layer make a real difference on early runs. At the other end, July averages 31.4°C highs — hot enough that early morning and evening are the sensible windows, and hydration matters more than waterproofing.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 22mm | 5 | 4.9°C | -9.3°C |
| February | 29mm | 6 | 6.1°C | -9.3°C |
| March | 49mm | 8 | 11.3°C | -4.5°C |
| April | 49mm | 8 | 16°C | 0.3°C |
| May | 98mm | 13 | 20.2°C | 5.6°C |
| June | 43mm | 7 | 28.4°C | 12.6°C |
| July | 32mm | 7 | 31.4°C | 15.8°C |
| August | 33mm | 7 | 30.4°C | 15°C |
| September | 19mm | 4 | 27.7°C | 11.1°C |
| October | 29mm | 5 | 19°C | 3.3°C |
| November | 24mm | 5 | 11.3°C | -3.2°C |
| December | 16mm | 4 | 6.7°C | -6.8°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Denver: common questions
Will it rain in Denver today?
The forecast card at the top of this page shows Denver's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Denver sees rain on about 79 days a year, so on any given day there is roughly a 22% chance of some rain falling.
Is it a good day to run in Denver?
RainOrRun scores the live Denver forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Denver today?
The hourly strip above highlights the best single window of the day for Denver — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Denver today?
The gear section on this page updates with the live Denver forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Denver?
May is the wettest month in Denver, averaging 98mm of rain across about 13 rainy days. December is the driest, with around 16mm over roughly 4 days. Figures are ten-year averages covering 2015 to 2024.
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