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Boulder, CO Weather Tomorrow

See what tomorrow's weather has in store for Boulder with a reliable 5 day forecast featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Boulder area and around Boulder county, Colorado.
Updated: Mon Oct 12th 2026 5:00 PM MDT
Boulder, CO Weather – 10-12 – Sunny
78° / 47°
Sunny
Daytime highs will reach 78°F with lows dropping to 47°F in Boulder, where it will be sunny. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 14mph on average and gusts of 15.2mph at 8 PM. Humidity levels should be comfortable, sitting around 32% on average, the maximum being 60% at 11 PM and 20% being its lowest at 6 PM. Barometric pressure is its highest of 29.79inHg at 11 PM, a lowest point of 29.57inHg at 6 PM with an avg 29.69inHg.
Boulder, CO Weather – 10-13 – Sunny
65° / 39°

Weather Tomorrow

Sunny
It will be sunny in Boulder, with a high of 65°F and a low of 39°F. Rainfall predicted to have a 57% chance with an estimated 0.06in. Winds will be light at 9mph and gusts of 19.5mph at 3 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 93% at 7 AM and 39% being its lowest at 3 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.75inHg at 3 PM with an avg 29.84inHg.
Boulder, CO Weather – 10-14 – Light Drizzle
53° / 43°
Light Drizzle
Boulder could see light Drizzle with daytime highs of 53°F and nighttime lows near 43°F. The chance of rain is 94% with an estimated 0.42in. Winds will be light at 6mph and gusts of 15.7mph at 1 PM. High humidity with average of 93% is anticipated, the maximum being 96% at 6 AM and 77% being its lowest at 12 AM. Barometric pressure is its highest of 30.1inHg at 11 AM, a lowest point of 29.99inHg at 12 AM with an avg 30.06inHg.
Boulder, CO Weather – 10-15 – Scattered Showers
57° / 40°
Scattered Showers
Boulder may see passing showers, with daytime highs of 57°F and overnight lows near 40°F. The chance of rain is 78% with an estimated 0.58in. Wind will be moderate, blowing around 17mph on average and gusts of 19.7mph at 11 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 97% at 12 AM and 38% being its lowest at 4 PM. Barometric pressure is its highest of 30.65inHg at 11 PM, a lowest point of 30.09inHg at 12 AM with an avg 30.35inHg.
Boulder, CO Weather – 10-16 – Sunny
60° / 33°
Sunny
Boulder is set for a sunny day with temperatures peaking at 60°F and dipping to 33°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 7mph and gusts of 18.1mph at 10 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 68% at 3 AM and 30% being its lowest at 2 PM. Barometric pressure is its highest of 30.69inHg at 6 AM, a lowest point of 30.34inHg at 5 PM with an avg 30.52inHg.
Boulder, CO Weather – 10-17 – Sunny
71° / 41°
Sunny
Highs will reach 71°F with lows near 41°F in Boulder, where a sunny day is. There's a very small chance of rainfall, only about 1%. Winds will be light at 10mph and gusts of 19mph at 3 AM. Humidity levels should be comfortable, sitting around 32% on average, the maximum being 40% at 12 AM and 18% being its lowest at 12 PM. Barometric pressure is its highest of 30.33inHg at 12 AM, a lowest point of 29.93inHg at 3 PM with an avg 30.09inHg.

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