Today | Weather | Monday, July 21, 2025
Longmont, Colorado. 01:56 PM
Now
Cloudy WeatherCloudy weather, overcast skies with clouds.
93° F
Feels Like 99°
Precipitation 6 %
Wind 8 mph
UV Index (0 - 11+) 8
Humidity 18 %
Today
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 95°
Night 63°
Precipitation 40 %
Wind 6 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Other:

Times of sunshine and cloud cover with a thunderstorm in spots this afternoon.

Longmont Weather Forecast Updated

52 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (July 21, 2024)

Day

82°

Night

59°