Boulder, CO Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Boulder, CO in one place.
A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 82, with temperatures falling to around 74 in the afternoon. East wind 1 to 6 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Boulder, 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: Aug 25, 2026 9:44 AM MDT.
The active forecast window currently covers Aug 25 to Aug 31, 2026 for Boulder, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Aug 31, 2026
- Latest sync
- Aug 25, 2026 9:44 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Boulder
Friday looks like the warmest upcoming period in Boulder at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Friday Night at about 2 to 8 mph WSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 9:44 AM MDT
- Coverage
- 8 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. Partly cloudy, with a low around 59. Northwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely after 2pm. Mostly sunny. High near 79, with temperatures falling to around 76 in the afternoon. Northeast wind 1 to 6 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. West wind around 2 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. East northeast wind 0 to 3 mph. Chance of precipitation is 40%.
Partly cloudy, with a low around 61.
Mostly sunny, with a high near 89.
Mostly cloudy, with a low around 65.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 84.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 82.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Aug 25
|
Mostly Sunny then Chance Showers And Thunderstorms
|
82°F |
1 to 6 mph
E
|
|
Tonight
Aug 25
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
6 mph
NW
|
|
Wednesday
Aug 26
|
Mostly Sunny then Showers And Thunderstorms Likely
|
79°F |
1 to 6 mph
NE
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms then Partly Cloudy
|
57°F |
2 mph
W
|
|
Thursday
Aug 27
|
Mostly Sunny then Chance Showers And Thunderstorms
|
82°F |
0 to 3 mph
ENE
|
|
Thursday Night
Aug 27
|
Partly Cloudy
|
61°F |
1 to 6 mph
SSW
|
|
Friday
Aug 28
|
Mostly Sunny
|
89°F |
1 to 6 mph
WNW
|
|
Friday Night
Aug 28
|
Mostly Cloudy
|
65°F |
2 to 8 mph
WSW
|
|
Saturday
Aug 29
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
7 mph
WSW
|
|
Saturday Night
Aug 29
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
65°F |
6 mph
W
|
|
Sunday
Aug 30
|
Partly Sunny then Showers And Thunderstorms Likely
|
84°F |
5 mph
WSW
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
59°F |
3 mph
WSW
|
|
Monday
Aug 31
|
Partly Sunny then Showers And Thunderstorms Likely
|
82°F |
3 mph
S
|
|
Monday Night
Aug 31
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
58°F |
3 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Boulder.
