Vallecito Lake forecast
Blended from several models, corrected to the lakeside station, and graded against it every day.
Low 70s through Fri, cooling to the mid 60s by Tue. A storm chance Sun.
This morning’s read
The morning read publishes daily around 5:45 am Mountain.
Up the Pine Weather. A forecast, not road status. Check COtrip before you drive, and the National Weather Service for warnings.
Hour by hour
Drag across the ridge — the sky is tonight and tomorrow, the mountain is the temperature.
- Now, Wed, Sep 9, 52 degrees, Mostly Clear
- 6 AM, Wed, Sep 9, 49 degrees, Sunny
- 7 AM, Wed, Sep 9, 50 degrees, Sunny
- 8 AM, Wed, Sep 9, 54 degrees, Sunny
- 9 AM, Wed, Sep 9, 61 degrees, Sunny
- 10 AM, Wed, Sep 9, 65 degrees, Sunny
- 11 AM, Wed, Sep 9, 68 degrees, Sunny
- 12 PM, Wed, Sep 9, 68 degrees, Sunny
- 1 PM, Wed, Sep 9, 70 degrees, Sunny
- 2 PM, Wed, Sep 9, 71 degrees, Sunny
- 3 PM, Wed, Sep 9, 72 degrees, Sunny
- 4 PM, Wed, Sep 9, 72 degrees, Sunny
- 5 PM, Wed, Sep 9, 72 degrees, Sunny, 1 percent chance of rain
- 6 PM, Wed, Sep 9, 74 degrees, Mostly Clear, 1 percent chance of rain
- 7 PM, Wed, Sep 9, 69 degrees, Mostly Clear, 1 percent chance of rain
- 8 PM, Wed, Sep 9, 62 degrees, Mostly Clear
- 9 PM, Wed, Sep 9, 58 degrees, Mostly Clear
- 10 PM, Wed, Sep 9, 55 degrees, Mostly Clear
- 11 PM, Wed, Sep 9, 53 degrees, Mostly Clear
- 12 AM, Thu, Sep 10, 55 degrees, Mostly Clear
- 1 AM, Thu, Sep 10, 53 degrees, Mostly Clear
- 2 AM, Thu, Sep 10, 51 degrees, Mostly Clear
- 3 AM, Thu, Sep 10, 50 degrees, Mostly Clear
- 4 AM, Thu, Sep 10, 49 degrees, Mostly Clear
See how much the models disagree — drag through the next 48 hours
The bold line is the corrected blend; the shaded band is how far the models disagree. Drag across it — or focus it and use .
Drag or use · the band is model spread, the line is the corrected blend.
Next seven days
Bars share one temperature scale, so you can read the week at a glance. Tap any day for the model spread, the correction, and the record.
WedSep 9Sunny73°51°1%
ThuSep 10Sunny72°49°
FriSep 11Showers70°48°16%
SatSep 12Showers68°49°21%
SunSep 13Showers65°50°47%
MonSep 14Showers64°49°36%
TueSep 15Showers64°49°35%
Precipitation radar
The latest radar frame over the San Juans (RainViewer). Loads when you scroll here to keep the page light.
Radar RainViewer · base map CARTO/OpenStreetMap · data NOAA/NWS.
Lake vs. the high country
The lake sits at about 7,665 ft; Big Bear Park (station BBRC2) is up at 10,341 ft, ≈2,700 ft higher toward the Weminuche. The difference between them is the gradient that flat forecasts miss.
Why it differs from your phone
Most apps read one model and smooth the terrain flat. We pull several — NWS, GFS, ECMWF, ICON — pin them to the lake's real elevation, and blend them, then correct toward the marina's lakeside station. That's why it can disagree with your phone.
Sources: NWS · GFS · ECMWF · ICON. · Ground truth: the lakeside marina station. See how we verify.