Idyllwild & Mount San Jacinto, CA

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Tahquitz Rock, Idyllwild, CA
Tahquitz Rock, Idyllwild, CA - inkknife_2000 (7.5 million views +), CC BY-SA 2.0, via Wikimedia Commons

Today’s Forecast:


Tonight:Rain showers. Mostly cloudy, with a low around 41. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday:A chance of rain showers before 10am. Mostly sunny, with a high near 51. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night:Mostly clear, with a low around 38. West wind around 0 mph.

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Today’s Report:

🥾 Hiking

Use Caution
  43 /100

Use Caution for hiking. High near 51°F. Risk of rain later today (46%). Light wind (10 mph).

  • Temp: Marginal weather factor
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Ideal conditions for hiking. Comfortable temperature (high near 55°F), light wind, and clear forecast.

⛺ Camping

Use Caution
  46 /100

Use Caution for camping. High near 51°F. Risk of rain later today (46%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Ideal conditions for camping. Comfortable temperature (high near 55°F), light wind, and clear forecast.

🚲 Biking

Use Caution
  40 /100

Use Caution for biking. High near 51°F. Risk of rain later today (46%). Light wind (10 mph).

  • Temp: Marginal weather factor
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 87/100
Ideal conditions for biking. Comfortable temperature (high near 55°F), light wind, and clear forecast.

About Idyllwild & Mount San Jacinto

Idyllwild & Mount San Jacinto is an outdoor-planning page for Idyllwild, San Jacinto high country, and tram-access areas. It has a distinct purpose centered on sharp desert-to-mountain changes, snow, cold nights, thunderstorms, smoke, and road access, with the forecast used to choose the safest and most comfortable version of the day.

Make the Most of a Idyllwild & Mount San Jacinto Day

Start by comparing conditions across Idyllwild, Humber Park, and the rest of the coverage area. Choose among hiking, camping, biking based on wind, precipitation, temperature, visibility, water or trail conditions, road access, smoke, and available daylight.

Weather Tips for Idyllwild & Mount San Jacinto

  • Conditions around Idyllwild, San Jacinto high country, and tram-access areas can differ sharply from nearby towns; sharp desert-to-mountain changes, snow, cold nights, thunderstorms, smoke, and road access are the main planning variables.
  • For camping, confirm overnight lows, wind, precipitation, fire restrictions, campground access, and how quickly shelter or services can be reached.
  • Check elevation-specific forecasts, snow and ice, chain controls, seasonal roads, cold nights, thunderstorms, wildfire smoke, and shoulder-season closures.
  • Crowds and parking can narrow the useful weather window, so arrive early and keep a lower-commitment nearby option.

Nearby Towns and Areas

This page covers Idyllwild, San Jacinto high country, and tram-access areas. It can also be useful when planning outdoor time near:

  • Humber Park
  • Mount San Jacinto
  • Pine Cove
  • Tahquitz Peak
  • Long Valley
  • Palm Springs Aerial Tramway

Plan Around the Conditions

Use the forecast to choose the best version of Idyllwild & Mount San Jacinto rather than forcing one itinerary. A shorter route, earlier launch, sheltered shoreline, lower-elevation trail, or town-based backup can preserve the day when conditions change.

7-Day Forecast for Idyllwild & Mount San Jacinto

Sat 🌧
51° 38°
46%
Sun ☀
55° 39°
0%
Mon 🌧
53° 38°
46%
Tue ❄
47° 32°
44%
Wed ☀
49° 34°
8%
Thu ❄
48° 32°
51%
Fri ❄
46° --°
18%

7-Day High Temperature Trend

51° Sat 55° Sun 53° Mon 47° Tue 49° Wed 48° Thu 46° Fri

7-Day Low Temperature Trend

38° Sat 39° Sun 38° Mon 32° Tue 34° Wed 32° Thu 50° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 70 Sat 100 Sun 80 Mon 19 Tue 20 Wed 19 Thu 20 Fri
Forecast data from the National Weather Service  |  Last Updated: November 13, 2026 9:16 pm CST

Idyllwild & Mount San Jacinto Weather by Season

Winter

At Idyllwild & Mount San Jacinto, winter brings snow, ice, chain controls, closed roads, and limited trail access. Conditions vary sharply by elevation, and cold nights or storms can make short trips more serious than valley forecasts suggest.

Spring

Around Idyllwild, San Jacinto high country, and tram-access areas, spring is a long shoulder season with lingering snow, mud, icy mornings, and roads or campgrounds opening in stages. Lower trails may be usable well before the high country.

Summer

For sharp desert-to-mountain changes, snow, cold nights, thunderstorms, smoke, and road access, summer opens the broadest access, but high-elevation sun, cold nights, afternoon thunderstorms, wildfire smoke, and fire restrictions remain central. Finish exposed ridges before storms build.

Fall

Near Idyllwild and the surrounding area, early fall can provide crisp hiking and biking weather, followed by freezing nights and the first snow. Services and roads may close before lower elevations feel wintry.

Key Climate Data Points

  • Warmest months: July and August at higher elevations.
  • Coolest months: December through February.
  • Wettest season: November through April, much of it as snow.
  • Driest season: July through September.
  • Best outdoor window: Mid-summer through early fall after roads open and before persistent snow.