National Weather Service forecast

Longmont, Colorado Weather

35°Overnight: Partly Cloudy
Wind W 3 mph

Longmont 7-Day Forecast

  1. Overnight
    35°F
    Partly Cloudy

    Partly cloudy, with a low around 35. West wind around 3 mph.

  2. Wednesday
    57°F
    Partly Sunny
    8% chance of precipitation

    Partly sunny. High near 57, with temperatures falling to around 53 in the afternoon. North northeast wind 1 to 5 mph.

  3. Wednesday Night
    35°F
    Mostly Cloudy
    8% chance of precipitation

    Mostly cloudy, with a low around 35. Northwest wind 1 to 5 mph.

  4. Thursday
    59°F
    Sunny

    Sunny, with a high near 59. South wind around 3 mph.

  5. Thursday Night
    37°F
    Partly Cloudy
    1% chance of precipitation

    Partly cloudy, with a low around 37. West wind around 1 mph.

  6. Friday
    58°F
    Mostly Sunny
    11% chance of precipitation

    Mostly sunny, with a high near 58.

  7. Friday Night
    34°F
    Partly Cloudy
    11% chance of precipitation

    Partly cloudy, with a low around 34.

  8. Saturday
    60°F
    Sunny
    1% chance of precipitation

    Sunny, with a high near 60.

  9. Saturday Night
    35°F
    Mostly Clear

    Mostly clear, with a low around 35.

  10. Sunday
    65°F
    Sunny

    Sunny, with a high near 65.

  11. Sunday Night
    38°F
    Mostly Clear

    Mostly clear, with a low around 38.

  12. Monday
    65°F
    Sunny

    Sunny, with a high near 65.

  13. Monday Night
    38°F
    Partly Cloudy

    Partly cloudy, with a low around 38.

  14. Tuesday
    64°F
    Mostly Sunny

    Mostly sunny, with a high near 64.

Issued by the National Weather Service (BOU office), updated .

Longmont Hourly Forecast

Loading the next 48 hours…

Full 100+ hour forecast for Longmont

Longmont Weather Radar

Open the full radar for Longmont

About Longmont

Population (2020 Census)
98,885
Coordinates
40.168, -105.100
Elevation
4,980 ft
NWS forecast office
BOU
Time zone
America/Denver
Sunrise today
6:33 AM MST
Sunset today
4:54 PM MST
Daylight today
10 h 22 min

Longmont Weather Questions

What is the weather forecast for Longmont, Colorado?

Overnight: Partly cloudy, with a low around 35. West wind around 3 mph. Wednesday: Partly sunny. High near 57, with temperatures falling to around 53 in the afternoon. North northeast wind 1 to 5 mph.

Will it rain or snow in Longmont this week?

Not much. The highest chance of precipitation in the 7-day forecast is 11%, Friday.

How warm and how cold will it get in Longmont this week?

The warmest day is Sunday, with a high near 65°F. The coldest night is Friday Night, with a low near 34°F.

What time are sunrise and sunset in Longmont today?

Sunrise is at 6:33 AM MST and sunset is at 4:54 PM MST, for 10 h 22 min of daylight.

Weather near Longmont

Largest cities in Colorado

All Colorado cities