East Bay Parks & Mount Diablo, CA

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Macedo Ranch - Mt. Diablo State Park (East Bay Regional Park District)
Macedo Ranch - Mt. Diablo State Park (East Bay Regional Park District) - MARELBU, CC BY 3.0, via Wikimedia Commons

Today’s Forecast:

🌤
61°F
High: 62° | Low: 56°
Current Temperature
Station: D1132
Observed at: 8:16 pm CST on 11/12/26
Wind: 0 mph | Humidity: 76%

Tonight:A slight chance of rain after 1am. Partly cloudy, with a low around 56. South wind 12 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday:Rain. Mostly cloudy. High near 60, with temperatures falling to around 53 in the afternoon. Southwest wind 9 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night:A chance of rain. Mostly cloudy. Low around 48, with temperatures rising to around 50 overnight. South southwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

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Today’s Report:

🥾 Hiking

Use Caution
  46 /100

Use Caution for hiking. High near 59°F. Rain forecast later today (100%). Breezy winds (20 mph).

  • Temp: Favorable conditions
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for hiking. High near 61°F. Low rain risk (16%).

🚲 Biking

Use Caution
  43 /100

Use Caution for biking. High near 59°F. Rain forecast later today (100%). Breezy winds (20 mph).

  • Temp: Marginal weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for biking. High near 61°F. Low rain risk (16%).

🎪 Outdoor Events / Activities

Use Caution
  42 /100

Use Caution for outdoor events / activities. High near 59°F. Rain forecast later today (100%). Breezy winds (20 mph).

  • Temp: Marginal weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 93/100
Excellent for outdoor events / activities. High near 61°F. Low rain risk (16%).

About East Bay Parks & Mount Diablo

East Bay Parks & Mount Diablo is an outdoor-planning page for Oakland and Berkeley hills through Mount Diablo. It has a distinct purpose centered on inland heat, ridge wind, fire conditions, and a varied regional trail network, with the forecast used to choose the safest and most comfortable version of the day.

Make the Most of a East Bay Parks & Mount Diablo Day

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

Weather Tips for East Bay Parks & Mount Diablo

  • Conditions around Oakland and Berkeley hills through Mount Diablo can differ sharply from nearby towns; inland heat, ridge wind, fire conditions, and a varied regional trail network are the main planning variables.
  • For biking, compare wind, pavement or trail surface, heat, visibility, traffic, smoke, and recent rain before choosing distance and exposure.
  • Recent rain, heat, smoke, fire restrictions, water levels, and afternoon wind can change which route or activity is most comfortable.
  • 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 Oakland and Berkeley hills through Mount Diablo. It can also be useful when planning outdoor time near:

  • Tilden Park
  • Redwood Regional Park
  • Briones
  • Lafayette Reservoir
  • Mount Diablo
  • Walnut Creek
  • Danville

Plan Around the Conditions

Use the forecast to choose the best version of East Bay Parks & Mount Diablo 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 East Bay Parks & Mount Diablo

🌤
61°F
High: 62° | Low: 56°
Current Temperature
Station: D1132
Observed at: 8:16 pm CST on 11/12/26
Wind: 0 mph | Humidity: 76%
Fri 🌧
60° 48°
100%
Sat 🌧
62° 50°
16%
Sun 🌧
61° 48°
91%
Mon 🌧
56° 43°
22%
Tue ☀
56° 45°
1%
Wed 🌧
55° 45°
84%
Thu 🌧
55° --°
43%

7-Day High Temperature Trend

60° Fri 62° Sat 61° Sun 56° Mon 56° Tue 55° Wed 55° Thu

7-Day Low Temperature Trend

48° Fri 50° Sat 48° Sun 43° Mon 45° Tue 45° Wed 50° Thu

📊 7-Day Outdoor Outlook

Good Fair Poor 89 Fri 100 Sat 93 Sun 100 Mon 100 Tue 93 Wed 95 Thu
Forecast data from the National Weather Service  |  Last Updated: November 12, 2026 9:19 pm CST

East Bay Parks & Mount Diablo Weather by Season

Winter

At East Bay Parks & Mount Diablo, winter brings the best chance of rain, cooler trail weather, and occasional muddy or closed paths after storms. Clear intervals are useful for longer walks and rides, but short daylight and slick slopes favor early starts.

Spring

Around Oakland and Berkeley hills through Mount Diablo, spring is often one of the strongest seasons for foothill hiking, biking, and outdoor events. Warming afternoons, grass pollen, wet crossings, and the first hot spells still deserve attention.

Summer

For inland heat, ridge wind, fire conditions, and a varied regional trail network, summer heat and strong sun make exposed trails and pavement demanding by midday. Start early, carry water, seek shade, and check air quality, smoke, and fire restrictions.

Fall

Near Tilden Park and the surrounding area, early fall can remain hot and dry, with wildfire and smoke concerns during windy periods. Cooler late-fall days improve trail comfort before the rainy season becomes established.

Key Climate Data Points

  • Warmest months: July through September.
  • Coolest months: December and January.
  • Wettest season: December through March.
  • Driest season: June through September.
  • Best outdoor window: Spring and late fall for hiking and biking; summer events need cooler morning or evening timing.