Two questions, answered separately: can you climb at all, and how good will it feel. Every hour we track how much rain fell, anchored to the Squamish Airport gauge, how fast sun, wind and dry air pull moisture back out, and whether it is condensing onto the rock. Three forecast models each run their own rain story, so one stray shower cannot soak the verdict.
Friction gets its own grade. Cool rock, dry air and a little breeze separate glassy slopers from velcro, so we estimate the rock surface temperature, which lags the air by hours, and rank every hour against ten years of Squamish weather from Fair to Prime.
The model cannot see seepage streaks, shaded forest boulders or a south face baking in February sun. Check the rock and make your own call.