Weather forecast for 10 daysLongmont, CO
Weather forecast for the weekend
Sunday Oct 18, 2026
- 75°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphESE 107°
- Humidity: 31%
- UV index: 4
- Sunrise: 7:14 am MDT
- Sunset: 6:16 pm MDT
- details ▼
Today, mostly clear with scattered clouds is expected.
A high of a temperate 75.2°F during the day contrasts markedly with a low of a wintry 39.2°F at night.
Forecasts show a high closer to September's climate pattern, around 77.2°F, rather than October's 61.5°F.
Sunrise will be at 7:14 am and sunset at 6:16 pm; the daylight will last for 11h and 2min.
A high of a temperate 75.2°F during the day contrasts markedly with a low of a wintry 39.2°F at night.
Forecasts show a high closer to September's climate pattern, around 77.2°F, rather than October's 61.5°F.
Sunrise will be at 7:14 am and sunset at 6:16 pm; the daylight will last for 11h and 2min.
10-day overview
Daily temperatures
Maximum temperature: 75°C.
Coldest day: Sunday 25.10. 64°C.
Coldest day: Sunday 25.10. 64°C.
Chance of precipitation
Highest chance: Saturday 18%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 75°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphESE 107°
- Humidity: 31%
- UV index: 4
- Sunrise: 7:14 am MDT
- Sunset: 6:16 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 4mphE 97°
- Humidity: 45%
- UV index: 4
- Sunrise: 7:15 am MDT
- Sunset: 6:14 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 45°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphE 98°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:16 am MDT
- Sunset: 6:13 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 46°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSE 128°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:17 am MDT
- Sunset: 6:12 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 50°F
Mostly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphNE 36°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:18 am MDT
- Sunset: 6:10 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 41°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 8mphSW 225°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:20 am MDT
- Sunset: 6:09 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 66°F
- 37°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 7mphE 86°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:21 am MDT
- Sunset: 6:08 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 64°F
- 39°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphENE 75°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:22 am MDT
- Sunset: 6:06 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 39°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphENE 70°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:23 am MDT
- Sunset: 6:05 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 66°F
- 41°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphE 93°
- Humidity: 43%
- UV index: 4
- Sunrise: 7:24 am MDT
- Sunset: 6:04 pm MDT
- details ▼
Forecasts for the ten-day outlook show that a combination of cloudy and sun-filled weather is anticipated.
Rainfall is not predicted in Longmont in the upcoming days.
In the upcoming period, the maximum temperature will range between 64.4°F and 75.2°F, while the lowest nightly temperature differences will be quite pronounced, as temperatures overnight will fluctuate from 37.4°F up to 50°F.
With a maximum temperature of 75.2°F, Sunday and Wednesday will be the warmest days; the coldest day will be next Sunday, with a maximum of 64.4°F.
Rainfall is not predicted in Longmont in the upcoming days.
In the upcoming period, the maximum temperature will range between 64.4°F and 75.2°F, while the lowest nightly temperature differences will be quite pronounced, as temperatures overnight will fluctuate from 37.4°F up to 50°F.
With a maximum temperature of 75.2°F, Sunday and Wednesday will be the warmest days; the coldest day will be next Sunday, with a maximum of 64.4°F.
Updated: Oct 18, 2026 @ 07:02:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, in Longmont, a pleasant mix of sun and clouds will define the day.
Today, the highest temperature in Longmont will be 75.2°F, while the lowest temperature will be 39.2°F.
Today, the highest temperature will be significantly higher than the average maximum of 61.5°F in October. Today, the lowest temperature will be in line with the average low temperature.
Today, the highest temperature will be significantly higher than the average maximum of 61.5°F in October. Today, the lowest temperature will be in line with the average low temperature.
On Sunday, in Longmont, sunrise will be at 7:14 am and sunset at 6:16 pm (MDT).
In Longmont, today, there will be 11h and 2min of daylight.
