Napa Valley Trail 10K
Race Day Weather
Comfortable temps, warming through the race, chance of rain
Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 64°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready.
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Race Info
The 10K is a single loop of the single-track trails in Bothe-Napa Valley State Park, the same loop the half marathon runs twice and the marathon runs three times. The trail has hills, stream crossings and rocky footing, and narrow sections with steep drop-offs. It is held on the Saturday of race weekend between Calistoga and St. Helena.
Race weekend
FAQ
When is the 2027 Napa Valley Trail 10K?
What is the time limit for the Napa Valley Trail 10K?
What will the weather be like for the 2027 Napa Valley Trail 10K?
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2026 |  | 61°/66° | - | 54° | |
2025 | | 53°/55° | - | 51° | |
2024 |  | 50°/52° | Light | 49° | |
2023 | | 47°/51° | - | 45° |