The GZA – Weather Forecast
Boulder, Colorado, US
This page shows a route-based weather forecast for the The GZA cycling climb in Boulder, Colorado, US. Unlike a simple location forecast, conditions are calculated at every point along the climb — from the base to the summit — using the actual route profile and elevation data.
You'll see hour-by-hour temperature, wind speed and direction, precipitation probability, and cloud cover adjusted for altitude. Choose your planned departure time to align the forecast with your ride.
The GZA
Plan Your Ride
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Calculating weather along route...
Trip Summary
Forecast A
Trip Summary A
Forecast B
Trip Summary B
Weather Display Options
Forecast A - Route Map
Forecast B - Route Map
Compare Reversed Route
Same departure time & speed — opposite direction
→ Original Direction
← Reversed Direction
Creates a new saved route in the reversed direction
Route Map
Elevation Profile
Temperature Along Route
Precipitation & Precipitation Probability Along Route
Wind Along Route
Humidity Along Route
Pollen Along Route
UV Index Along Route
Start place details
Weather Forecast
Hourly around Fri 28 Aug 21:59
Climate Overview
| Month |
Temp Day
|
Temp Night
|
Sunny Days
|
Sun Hours
|
Rain Days
|
Precipitation
|
Humidity
|
UV Index
|
Day Length
|
|---|---|---|---|---|---|---|---|---|---|
| Jan | 0°C | -13°C | 23 | 7.6h | 17 | 58 mm | 75 % | 2 | 9h 42m |
| Feb | 3°C | -9°C | 23 | 7.8h | 17 | 66 mm | 73 % | 3 | 10h 43m |
| Mar | 9°C | -4°C | 30 | 9.9h | 16 | 103 mm | 70 % | 4 | 11h 59m |
| Apr | 11°C | -3°C | 26 | 10.6h | 17 | 95 mm | 68 % | 5 | 13h 18m |
| May | 16°C | 3°C | 29 | 12.0h | 22 | 215 mm | 65 % | 6 | 14h 25m |
| Jun | 23°C | 8°C | 28 | 12.9h | 17 | 128 mm | 67 % | 7 | 14h 58m |
| Jul | 26°C | 11°C | 31 | 13.2h | 12 | 58 mm | 66 % | 8 | 14h 40m |
| Aug | 25°C | 10°C | 31 | 12.5h | 14 | 128 mm | 68 % | 7 | 13h 41m |
| Sep | 21°C | 6°C | 29 | 11.1h | 14 | 96 mm | 70 % | 5 | 12h 25m |
| Oct | 15°C | 2°C | 28 | 9.6h | 13 | 40 mm | 72 % | 4 | 11h 6m |
| Nov | 11°C | -1°C | 26 | 8.4h | 9 | 13 mm | 76 % | 2 | 9h 57m |
| Dec | 9°C | -3°C | 24 | 7.1h | 11 | 44 mm | 77 % | 2 | 9h 22m |