Skip to content

Map Accuracy For educators How it works Get alerts

Odds, not announcements. Your district makes the call.

Snow Day Radar

Home The map Free alerts

Trust

Accuracy How it works Privacy

For schools

For educators Classroom 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.

Home Map Alerts Accuracy More

San Mateo County, California

San Mateo Union High

Beta: national model

This week Example storm

Under 20%

Monday, Nov 9 · Tomorrow

School's likely on

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

0.0 insnow by 7 AM

0.0 insnow during school

55°Fwind chill at bus time

55°Fovernight low

Why?

No winter weather in the forecast.

Get free alerts for San Mateo Union High

Odds, not an announcement. San Mateo Union High 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

Burlingame ElementaryCAunder 20%Hillsborough City ElementaryCAunder 20%San Mateo-Foster City ElementaryCAunder 20%Millbrae ElementaryCAunder 20%San Bruno Park ElementaryCAunder 20%Belmont-Redwood Shores ElementaryCAunder 20%San Carlos ElementaryCAunder 20%South San FranciscoCAunder 20%

Share card

Updates with the odds

Share card: San Mateo Union High, under 20% chance of no in-person school Monday

Check another district

Search by district, county or ZIP

San Mateo Union High, CA · Snow Day Radar