National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

52°F

11°C

Humidity 31%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 22 Jan 04:05 AM PST
Extended Forecast for

7 Miles ENE Danville CA

  • Today

    Today: Mostly sunny, with a high near 59. West wind around 6 mph.

    High: 59 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Southwest wind around 8 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54. West wind around 6 mph becoming north northeast in the morning.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. West northwest wind 6 to 9 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. North wind 13 to 15 mph, with gusts as high as 28 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 59. West wind around 6 mph.
Tonight
Partly cloudy, with a low around 44. Southwest wind around 8 mph.
Friday
Mostly sunny, with a high near 54. West wind around 6 mph becoming north northeast in the morning.
Friday Night
Mostly clear, with a low around 42. West northwest wind 6 to 9 mph.
Saturday
Sunny, with a high near 55. North wind 13 to 15 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Danville CA
 37.83°N 121.88°W (Elev. 1913 ft)
Last Update:
3:11 am PST Jan 22, 2026
Forecast Valid:
4am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation