Weather forecast for 10 daysDiscovery Bay, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 86°F
- 48°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphW 270°
- Humidity: 39%
- UV index: 5
- Sunrise: 7:18 am PDT
- Sunset: 6:24 pm PDT
- details ▼
Tomorrow, in Discovery Bay, skies are expected to be clear and full of sunshine.
Considerable temperature fluctuations from a high of a hot 86°F to a low of a frosty 48.2°F are anticipated.
Tomorrow, the predicted high will be higher and much closer to September's average high of 85.3°F than October's 75.9°F.
Sunrise will be at 7:18 am and sunset at 6:24 pm; tomorrow's daylight will last for 11h and 7min.
Considerable temperature fluctuations from a high of a hot 86°F to a low of a frosty 48.2°F are anticipated.
Tomorrow, the predicted high will be higher and much closer to September's average high of 85.3°F than October's 75.9°F.
Sunrise will be at 7:18 am and sunset at 6:24 pm; tomorrow's daylight will last for 11h and 7min.
10-day overview
Daily temperatures
Warmest day: tomorrow 86°C.
Coldest day: Wednesday 66°C.
Coldest day: Wednesday 66°C.
Chance of precipitation
Highest chance: Wednesday 51%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 54°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSW 227°
- Humidity: 50%
- UV index: 0
- Sunrise: 7:17 am PDT
- Sunset: 6:26 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 86°F
- 48°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphW 270°
- Humidity: 39%
- UV index: 5
- Sunrise: 7:18 am PDT
- Sunset: 6:24 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 12mphWSW 255°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:19 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 54°F
AM Clouds / PM Sun
- Precip. probability: 7%
- Precipitation: 0.08"
- Wind: 6mphNW 320°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:20 am PDT
- Sunset: 6:22 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 55°F
Showers
- Precip. probability: 51%
- Precipitation: 0.12"
- Wind: 6mphNW 322°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:21 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 52°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 8mphW 268°
- Humidity: 68%
- UV index: 4
- Sunrise: 7:22 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 48°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 8mphWNW 293°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:23 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 73°F
- 50°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 7mphWNW 293°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:24 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 73°F
- 50°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphW 280°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:25 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 8mphWNW 283°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:26 am PDT
- Sunset: 6:14 pm PDT
- details ▼
For the next ten days, a combination of primarily cloud-filled and occasionally mostly clear and rain-filled weather is predicted.
With a probability of 51%, rainfall is predicted only for Wednesday. The precipitation will be minimal at 0.12".
Temperature differences will be noticeable across the forecast period. The maximum temperature will vary between 66.2°F and 86°F, while the low temperature range extends from 48.2°F to 55.4°F.
With the highest temperature of 86°F, Sunday will be the hottest day; expect the coldest day on Wednesday with a high of 66.2°F.
With a probability of 51%, rainfall is predicted only for Wednesday. The precipitation will be minimal at 0.12".
Temperature differences will be noticeable across the forecast period. The maximum temperature will vary between 66.2°F and 86°F, while the low temperature range extends from 48.2°F to 55.4°F.
With the highest temperature of 86°F, Sunday will be the hottest day; expect the coldest day on Wednesday with a high of 66.2°F.
Updated: Oct 18, 2026 @ 05:42:42 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, in Discovery Bay, the outlook remains bright and sunny.
Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 48.2°F.
Tomorrow, the highest temperature will be significantly higher than the average maximum of 75.9°F in October. The lowest temperature will be a couple of degrees lower than the average low of 54°F.
Tomorrow, the highest temperature will be significantly higher than the average maximum of 75.9°F in October. The lowest temperature will be a couple of degrees lower than the average low of 54°F.
On Sunday, in Discovery Bay, sunrise will be at 7:18 am and sunset at 6:24 pm (PDT).
Tomorrow, the daylight will last for 11h and 7min.
