Grand Lake, CO Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Lake, CO in one place.
Clear. Low around 44, with temperatures rising to around 46 overnight. Northeast wind around 5 mph.
Local Weather Overview
This forecast page for Grand Lake, 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: Jul 15, 2026 3:38 AM MDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for Grand Lake, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 3:38 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Lake
Wednesday looks like the warmest upcoming period in Grand Lake at 83 degrees F.
Overnight is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 12 mph ESE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 3:38 AM MDT
- Coverage
- 7 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 after noon. Mostly sunny. High near 83, with temperatures falling to around 79 in the afternoon. East southeast wind 2 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 46. East northeast wind 3 to 12 mph, with gusts as high as 21 mph.
A chance of showers and thunderstorms between 1pm and 5pm. Mostly sunny, with a high near 79. East southeast wind 1 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 46. East northeast wind 3 to 12 mph, with gusts as high as 20 mph.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Partly cloudy, with a low around 46.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Partly cloudy, with a low around 47.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.
A chance of rain showers before noon, then showers and thunderstorms. Mostly cloudy, with a high near 78.
Showers and thunderstorms likely. Mostly cloudy, with a low around 47.
A chance of rain showers before noon, then showers and thunderstorms. Mostly cloudy, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 15
|
Clear
|
44°F |
5 mph
NE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Chance Showers And Thunderstorms
|
83°F |
2 to 12 mph
ESE
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
46°F |
3 to 12 mph
ENE
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
79°F |
1 to 10 mph
ESE
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
46°F |
3 to 12 mph
ENE
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
1 to 10 mph
E
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
46°F |
2 to 12 mph
ENE
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
1 to 8 mph
ESE
|
|
Saturday Night
Jul 18
|
Partly Cloudy
|
47°F |
3 to 9 mph
ENE
|
|
Sunday
Jul 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
83°F |
1 to 8 mph
SW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
48°F |
8 to 12 mph
NE
|
|
Monday
Jul 20
|
Showers And Thunderstorms
|
78°F |
3 to 10 mph
E
|
|
Monday Night
Jul 20
|
Showers And Thunderstorms Likely
|
47°F |
6 to 9 mph
E
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms
|
75°F |
3 to 8 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Lake.