AccuWeather Forecast: Hot almost everywhere today, Spare the Air alert

Welcome to Tuesday!
We begin today clear and milder with morning microclimates. Commute temperatures range from lower 50s in the North Bay to lower and middle 60s elsewhere.

VIDEO: Meteorologist Mike Nicco has your AccuWeather forecast

RELATED: Here are the Bay Area 'hot spots' for poor air quality today

This milder start and total sunshine goose our afternoon temperatures nearly 15 to 20 degrees above average levels. Poor air quality could affect the most vulnerable.

Another milder than average night develops while a few clouds gather along the Coast and East Bay.

Wednesday and Beyond:
Astronomical autumn arrives at 12:20 p.m. tomorrow. While highs cool significantly, expect above average warmth.

Afternoon temperatures soar again Thursday, nearly matching today's levels Inland, but not as warm for Bay and Coast communities.

Morning marine layer clouds and cooler afternoons begin Friday and continue through Monday.

WATCH LIVE: Live Doppler 7, Real-time temps, air quality in Bay Area

Concord: 97/59
Fremont: 92/61
Oakland: 90/57
Redwood City: 93/58
San Francisco: 88/57
San Jose: 93/60
San Rafael: 97/55
Santa Rosa: 96/53

TODAY: Hazy Sunshine
Highs: 75 - 81 Degrees
TONIGHT: Partly Cloudy
Lows: 53 - 56 Degrees

North Bay:
TODAY: Hazy Sunshine
Highs: 93 - 97 Degrees
TONIGHT: Mostly Clear
Lows: 53 - 57 Degrees

East Bay:
TODAY: Hazy Sunshine
Highs: 87 - 92 Degrees
TONIGHT: Partly Cloudy
Lows: 56 - 61 Degrees

Inland East Bay:
TODAY: Hazy Sunshine
Highs: 95 - 98 Degrees
Lows: 59 - 64 Degrees

TODAY: Hazy Sunshine
Highs: 89 - 93 Degrees
TONIGHT: Mostly Clear
Lows: 56 - 60 Degrees

South Bay:
TODAY: Hazy Sunshine
Highs: 90 - 96 Degrees
Lows: 57 - 62 Degrees

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