Detailed cycling weather forecast for Passo del Tonale. See wind direction, temperature and rain along the entire climb and descent.

• Passo del Tonale (SS42) is a paved mountain pass linking Val Camonica (Lombardy) with Val di Sole (Trentino) and is generally open year‑round to traffic (bike or vehicle) as it’s an important regional route. 
• For summer mountain biking / lift‑assisted descents (trail network), lifts equipped for bikes usually operate in summer — Bike Pass season typically runs from ~21 June to mid‑September each year. 
• There’s no official winter closure for cyclists posted — but in winter and early spring the road may be icy, snowy, and dangerous, especially above ~1500 m, and services (cafés, refuges) may be limited.

• Temperatures are well below freezing (often around 0 °C to –7 °C and colder at night). 
• Frequent snowfall and snow cover on the road is likely throughout the winter — including moderate to heavy snow at times. 
• Forecasts show snow continuing or reoccurring over the next several days with variable clouds and limited sunshine. 

Implication for cyclists in winter:
• Roads may be covered with snow/ice and slippery — studded tyres or fat bikes might be needed.
• Snow ploughs can keep the road passable for cars but the surface can remain icy/patchy.

• Low temperatures and snow/rain mix can make descents rapidly icy. 
• Wind and changing weather at elevation can reduce comfort and make it feel much colder. 
• Even if the pass is technically rideable, conditions are harsh for winter cycling, especially for road bikes without winter tyres.

• Best cycling months (road and gravel) are generally late June through September, when snow has melted off and summer conditions prevail. 
• During these months:
  • Roads are clear and dry.
  • Bike‑assisted lift options are operational.
  • Weather is milder with more stable conditions.

• Check real‑time weather and road cam before riding.
• In winter conditions, equip bikes for ice/snow (fat tyres or studded road tyres).
• Start early — mountain weather can worsen quickly — and carry warm layers.
• If road is snowy/icy, consider alternate lower‑elevation routes.