Hot in Parts of the West; Cold Blast Coming to the Central U.S.
Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >
Current conditions at
Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
80°F
27°C
| Humidity | 21% |
| Wind Speed | SW 6 MPH |
| Barometer | NA |
| Dewpoint | 36°F (2°C) |
| Visibility | NA |
| Heat Index | 79°F (26°C) |
| Last update | 01 Sep 02:50 AM PDT |
Extended Forecast for
3 Miles ESE Danville CA
Overnight
Low: 64 °F
Clear
Labor Day
High: 96 °F
Hot
Monday Night
Low: 61 °F
Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 58 °F
Mostly Clear
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 58 °F
Mostly Clear
Thursday
High: 85 °F
Mostly Sunny
Thursday Night
Low: 57 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a steady temperature around 64. Light west southwest wind.
Labor Day
Sunny and hot, with a high near 96. Calm wind becoming west 5 to 9 mph in the afternoon.
Monday Night
Clear, with a low around 61. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Light south wind becoming west southwest 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 58. West southwest wind 5 to 9 mph becoming light southwest after midnight.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ESE Danville CA
37.8°N 121.96°W (Elev. 604 ft)
37.8°N 121.96°W (Elev. 604 ft)
1:26 am PDT Sep 1, 2025
3am PDT Sep 1, 2025-6pm PDT Sep 7, 2025
Additional Resources
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