Weather forecast for 10 days
Longmont, CO

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:29 am

8:34 pm
MDT
Sunny
99°F / 61°F
  • Wind: 9mph SSE
  • Humidity: 14%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Longmont, clear skies and sunshine are anticipated.
The peak daytime temperature will touch a sweltering 98.6°F, while the nighttime temperature will descend to a breezy 60.8°F.
The temperature will be higher and more consistent with July's average high of 85.6°F than with June's usual.
Sunrise will be at 5:29 am and sunset at 8:34 pm; the daylight will last for 15h and 5min.

Sunday, Jun 22.

Mostly Sunny
5:30 am

8:35 pm
MDT
Mostly Sunny
91°F / 55°F
  • Wind: 11mph E
  • Humidity: 21%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
On Sunday, June 22, blue skies and warm sunshine will define the conditions.
A high of a blazing 91.4°F during the day contrasts markedly with a low of a refreshing 55.4°F at night.
On Sunday, the maximum temperature is expected to align with July's average high of 85.6°F instead of June's.
Sunrise will be at 5:30 am and sunset at 8:35 pm; the daylight will last for 15h and 5min.

Frequently asked questions

What is the weather forecast for Longmont for Saturday?
On Saturday, sunny conditions are expected to continue.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 98.6°F, while the minimum temperature will be 60.8°F.
What is the weather forecast for Longmont for Sunday?
On Sunday, sunshine will lead the day, with clouds making only brief appearances.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 91.4°F, while the minimum temperature will be 55.4°F.
What is the weather forecast for Longmont for the next ten days?
In Longmont, a combination of bright, cloudy and thunderstorm-prone weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Monday through next Wednesday in Longmont. With light precipitation of 0.16", Monday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 71.6°F and 102.2°F, while the minimum temperature will range between 53.6°F and 60.8°F.
What will be the hottest and the coldest days?
The hottest day will be Friday, with a maximum of 102.2°F. With a maximum temperature of 71.6°F, Monday will be the coldest day.

Long-term weather forecast

WedJun 18.
  • min.
  • 54°F
Clear
Clear
  • Wind: 4mph W
  • Humidity: 64%
  • UV index: 0
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:29 am 8:34 pm MDT
ThuJun 19.
  • 97°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SE
  • Humidity: 26%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:29 am 8:34 pm MDT
FriJun 20.
  • 102°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph SW
  • Humidity: 17%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:29 am 8:34 pm MDT
SatJun 21.
  • 99°F
  • 61°F
Sunny
Sunny
  • Wind: 9mph SSE
  • Humidity: 14%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:29 am 8:34 pm MDT
SunJun 22.
  • 91°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph E
  • Humidity: 21%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:30 am 8:35 pm MDT
MonJun 23.
  • 72°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph E
  • Humidity: 60%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0.16"
  • 5:30 am 8:35 pm MDT
TueJun 24.
  • 75°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph ENE
  • Humidity: 63%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • 5:30 am 8:35 pm MDT
WedJun 25.
  • 75°F
  • 54°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph NE
  • Humidity: 61%
  • UV index: 7
  • Precip. probability: 56%
  • Precipitation: 0.12"
  • 5:30 am 8:35 pm MDT
ThuJun 26.
  • 82°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Humidity: 48%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:31 am 8:35 pm MDT
FriJun 27.
  • 90°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph E
  • Humidity: 35%
  • UV index: 9
  • Precip. probability: 16%
  • Precipitation: 0"
  • 5:31 am 8:35 pm MDT
Looking ahead, conditions suggest a period of clear, gloomy and lightning-active weather is forecasted.
Rainfall is predicted for Monday through next Wednesday.
Noticeable swings in temperature are expected in the upcoming period. Highs will range from 71.6°F to 102.2°F, while the lowest temperature will be between 53.6°F and 60.8°F.
Friday is expected to be the hottest, reaching up to 102.2°F; expect the coldest day on Monday with a high of 71.6°F.
Updated: Jun 19, 2025 @ 04:58:04 UTC
Published by: Weather U.S. | About Us
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