plan a safe trip
Weather, Roads & Emergency
Frosty's trip-safety desk for the Highway 140 gateway to Yosemite. Everything here points to official sources — always confirm with them before you rely on it.
🌤️ Weather
National Weather Service forecast · updated Jul 19, 5:00 AM Pacific. Full NWS forecast →
Mariposa70°F / 21°C
Overnight: Mostly Clear
- SundaySunny93° / 34°C
- Sunday NightMostly Clear71° / 22°C
- MondayMostly Sunny92° / 33°C
- Monday NightPartly Cloudy71° / 22°C
- TuesdayMostly Sunny93° / 34°C
Yosemite Valley62°F / 17°C
Overnight: Mostly Clear
- SundaySunny94° / 34°C
- Sunday NightPartly Cloudy64° / 18°C
- MondayMostly Sunny then Slight Chance Light Rain92° / 33°C
- Monday NightSlight Chance Light Rain then Mostly Cloudy63° / 17°C
- TuesdayChance Showers And Thunderstorms92° / 33°C
🛣️ Road & route conditions
Two jurisdictions: Caltrans manages the state highways up to the park boundary; once you enter Yosemite, the National Park Service does. Check both.
Caltrans — highways to the gateways
- Live map: Caltrans QuickMap
- Hotline: 1-800-427-7623 (1-800-GAS-ROAD)
- From Mariposa: Hwy 140, the low-elevation All-Season Highway — SR-140 status
- From Oakhurst: Hwy 41 north — SR-41 status
- From Coulterville: Hwy 132 → Hwy 120 west — SR-120 status
National Park Service — inside Yosemite
- Road/weather recording: (209) 372-0200 (press 1, then 1)
- Current conditions: nps.gov/yose conditions →
- Seasonal note: chain controls and closures are common Nov–Apr at higher elevations — Hwy 140 stays lowest.
🆘 Emergency contacts
Life-threatening emergency
911Yosemite NP 24-hr dispatch
(209) 379-1992Mariposa County Sheriff (non-emergency)
(209) 966-3615Caltrans road info
1-800-427-7623Yosemite road/weather recording
(209) 372-0200In any emergency, call 911 first. Numbers and links are provided as a courtesy and may change — the issuing agencies are the source of record.