Boulder, CO
Today’s Forecast:
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Today’s Report:
Hiking
Good for hiking. High near 82°F. Low rain risk (29%). Light wind (7 mph).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Biking
Good for biking. High near 82°F. Risk of evening rain (29%). Light wind (7 mph).
- Temp: Marginal weather factor
- Rain: Marginal weather factor
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Outdoor Events / Activities
Good for outdoor events / activities. High near 82°F. Risk of evening rain (29%). Light wind (7 mph).
- Temp: Marginal weather factor
- Rain: Marginal weather factor
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
About Boulder
Boulder is a foothills and open-space planning page for Flatirons hikes, bike paths, canyon access, neighborhood parks, outdoor events, and quick shifts between town and mountain weather.
Make the Most of a Boulder Day
Use the forecast to choose between exposed foothill trails, lower bike paths, canyon routes, or town-based outdoor plans. Parking, heat, wind, and lightning timing all matter here.
Weather Tips for Boulder
- Afternoon lightning, foothill wind, hot exposed trails, snow or ice in shaded canyons, smoke, and rapid temperature changes can affect Boulder plans.
- If thunder is possible, finish exposed ridges, open trails, lakes, and long bike routes early.
- For biking, watch wind, heat, trail exposure, and whether recent rain has left dirt, clay, or rock surfaces slick.
- Smoke, dust, fire restrictions, and sudden storm cells can change outdoor plans during dry or windy stretches.
Nearby Towns and Areas
This page is meant to cover a roughly 25-mile outdoor-planning area around Boulder, including Boulder, the Flatirons and nearby open spaces, Boulder Canyon, Eldorado Canyon, and close-in east county communities. It can also be useful when planning outdoor time near:
- Chautauqua Park
- Flatirons
- Eldorado Canyon State Park
- Louisville
- Lafayette
- Nederland
- Boulder Canyon
- Boulder Creek Path
Plan Around the Conditions
Use the forecast to choose the best version of Boulder rather than forcing one itinerary. Match elevation, heat, wind, storm timing, water conditions, trail surfaces, road conditions, fire restrictions, and seasonal closures to the activity that gives your group the most comfortable day.