Longmont, CO Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Longmont, CO in one place.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. East southeast wind 1 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Longmont, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 24, 2026 10:26 AM MDT.
The active forecast window currently covers May 26 to May 30, 2026 for Longmont, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to May 30, 2026
- Latest sync
- May 24, 2026 10:26 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Longmont
Tuesday looks like the warmest upcoming period in Longmont at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Tuesday at about 1 to 21 mph ESE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 10:26 AM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Showers and thunderstorms likely after noon. Mostly cloudy, with a high near 77.
Showers and thunderstorms likely. Mostly cloudy, with a low around 52.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Partly Sunny then Chance Showers And Thunderstorms
|
82°F |
1 to 21 mph
ESE
|
|
Tuesday Night
May 26
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
53°F |
1 to 20 mph
SW
|
|
Wednesday
May 27
|
Mostly Cloudy then Showers And Thunderstorms Likely
|
77°F |
1 to 7 mph
NE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely
|
52°F |
0 to 7 mph
WSW
|
|
Thursday
May 28
|
Mostly Sunny then Chance Showers And Thunderstorms
|
78°F |
1 to 7 mph
ENE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms then Partly Cloudy
|
53°F |
1 to 7 mph
NNW
|
|
Friday
May 29
|
Mostly Sunny then Chance Showers And Thunderstorms
|
79°F |
1 to 10 mph
NE
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms
|
52°F |
1 to 10 mph
N
|
|
Saturday
May 30
|
Partly Sunny then Chance Showers And Thunderstorms
|
77°F |
1 to 7 mph
NNE
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
51°F |
1 to 7 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Longmont.
