Weather Javelina 100k 2026
Forecasts for a 600 UTMB Index runner, at their estimated passage time. Start Sat, 10/31 07:00 AM: Overcast, 65°F. Coldest: 59°F feels-like at Jackass Junction Aid (Sat, 10/31 08:49 AM); warmest: 77°F at Javelina Jeadquarters (Sat, 10/31 02:06 PM). Rain expected at Javelina Jeadquarters (Finish), up to 0 mm on one segment. Gusts up to 13 mph at Rattlesnake Ranch Aid.
Hour by hour, from the start to the estimated finish
Local race times (America/Phoenix). This race does not publish its cut-off: the finish is estimated for a slow runner, so the last columns are indicative.
Section-by-section forecasts for Javelina 100k 2026, calculated at the estimated passing time: feels-like temperature, rain or snow, wind and thunderstorms. Three models — AROME (Météo-France), ICON (DWD) and ECMWF IFS — served from the finest to the farthest-reaching.
The weather for the entire race, by 4-hour slots, at the start and at each aid station — to know when rain arrives and which pass gets windy, whatever your pace.
Forecast, not guaranteed: in the mountains a model describes a grid of several hundred meters, not the slope you're on.
Weather data: Météo-France (AROME), DWD (ICON), ECMWF (IFS) — CC BY 4.0, via Open-Meteo