Skip to content
Snow Day Radar
MapAccuracyFor educatorsHow it worksGet alerts
Alerts
Snow Day Radar

Odds, not announcements. Your district makes the call.

by Ryan Hall, Y'all

Snow Day Radar

HomeThe mapFree alerts

Trust

AccuracyHow it worksPrivacy

For schools

For educatorsClassroom kit

Next school day: 20 to 80%. Two days out: 20, 40 or 60%. Three days out: 10, 30 or 50%. Never 100%.

© 2026 Hall Enterprises. Snow Day Radar is not affiliated with any school district or the National Weather Service.

HomeMapAlertsAccuracyMore

Contra Costa County, California

John Swett

Beta: national model
This weekExample storm
Under 20%

Tuesday, Nov 10 · Tomorrow

School's likely on

Under 20% chance of no in-person school Tuesday.

0.0 insnow by 7 AM
0.0 insnow during school
54°Fwind chill at bus time
53°Fovernight low
Why?

No winter weather in the forecast.

Save image
Get free alerts for John Swett

Odds, not an announcement. John Swett makes the call; check the district's own site or app for its decision.

Loading the map
Chance of no in-person school<20%20%30%40%50%60%70%80%

Nearby districts

BeniciaCAunder 20%Vallejo CityCAunder 20%MartinezCAunder 20%West Contra CostaCAunder 20%Albany CityCAunder 20%Orinda Union ElementaryCAunder 20%BerkeleyCAunder 20%Mount DiabloCAunder 20%

Share card

Updates with the odds
Share card: John Swett, under 20% chance of no in-person school Tuesday

Check another district