Longmont weather
At 6:30 PM local time it was clear and 12°C (53°F). Little to no rain in the next 24 hours. Best months for weather: May–Oct. Longmont sits 1520 m (4,987 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Longmont, Colorado, United States.
Current conditions
- Clouds
- 0%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–OctOff season Dec–Feb
About Longmont weather
Is it raining in Longmont right now?
No. It’s clear and 12° right now. Little to no rain in the next 24 hours.
What’s the weather like in Longmont this week?
Over the next 7 days, expect highs of 13–18° and lows of 3–6°. Rain is likely on 2 of 7 days (Monday, Wednesday). The driest day looks like Saturday.
Has it been raining in Longmont lately?
In the past 7 days, Longmont had 1 rainy day and 2.6 mm of rain in total.
What should I pack for Longmont?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Longmont weather by month
When is the best time to visit Longmont?
Based on weather alone, the best time to visit Longmont is May–Oct, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 4°C (40°F) in December to 32°C (89°F) in July.
What is the rainiest month in Longmont?
May is the wettest month, with about 65 mm (2.6 in) of rain on average. January is the driest, with about 20 mm (0.8 in).
What is the hottest month in Longmont?
July is the warmest, with average highs of 32°C (89°F) and lows of 16°C (61°F). December is the coolest, with highs of 4°C (40°F) and lows of -7°C (20°F).
Does Longmont have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is May at about 65 mm (2.6 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months