Weather World

Lafayette, CA Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Current Conditions

Settings

Overcast

63°F

Updated	6:28 am
Feels Like	57°F
Humidity	75%
Wind	SW 8 mph
Barometer	30.03 in
Dew Point	55°F

Overcast

17°C

Updated	6:28 am
Feels Like	14°C
Humidity	75%
Wind	SW 13 km/h
Barometer	101.6 kPa
Dew Point	13°C

WX Settings

°F °C°F °C

Text IconsText Icons

Sun & Moon

Converter

Cloud Cover	99%
uv UV Index	6
Sunrise	6:52 AM
Sunset	7:13 PM
Moonrise	1:46 PM
Moonset	10:50 PM

Civil Twilight
6:23 AM to 6:49 AM
7:13 PM to 7:39 PM
Lafayette CA Weather - Waxing Crescent Moon

Waxing Crescent Moon

Lafayette Weather Forecast

TODAY	TONIGHT	FRIDAY	FRIDAY NIGHT	SATURDAY	SATURDAY NIGHT	SUNDAY	MONDAY	MONDAY NIGHT	TUESDAY	WEDNESDAY

Mostly Cloudy	Mostly Clear	Patchy Fog	Clear	Sunny	Partly Cloudy	Partly Cloudy	Partly Cloudy	Mostly Clear	Mostly Clear	Mostly Clear
Hi: 79°FHi: 26°C	Lo: 55°FLo: 13°C	Hi: 85°FHi: 29°C	Lo: 59°FLo: 15°C	Hi: 89°FHi: 32°C	Lo: 59°FLo: 15°C	Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C	Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C	Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C	Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C	Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C

POP = Probability of Precipitation.

Weather Outlook Updated: 602 AM PDT Thu Sep 17 2026 Lafayette, CA Weather - WeatherWorld.com

Trending Headlines

Lafayette Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Lafayette Weather Map

Comprehensive Weather Maps

Lafayette Quick Facts

National Two Day Weather Forecast

E-mail the Lafayette Weather Forecast

Voice your opinion or tell us about page issues...

Lafayette Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 422 AM PDT Thu Sep 17 2026

Key Messages

Updated at 1211 AM PDT Thu Sep 17 2026

Cooler temperatures through Thursday
Warming trend Friday into the weekend

Aviation

... (12Z TAFS) Issued at 421 AM PDT Thu Sep 17 2026

A patchwork of VFR to IFR conditions prevails over the region with stratocumulus persisting over the Bay Area and parts of the Central Coast through the pre-dawn hours. The cloud deck should retreat back to the coastal regions through the late morning and afternoon hours, with a gentle to moderate onshore breeze de...

Sponsored Links

Weather 101: Term of the Day

Flood Categories

Terms defined for each forecast point which describe or categorize the severity of flood impacts in the corresponding river/stream reach. Each flood category is bounded by an upper and lower stage (see Example 1). The severity of flooding at a given stage is not necessarily the same at all locations along a river reach due to varying channel/bank characteristics or presence of levees on portions of the reach. Therefore, the upper and lower stages for a given flood category are usually associated with water levels corresponding to the most significant flood impacts somewhere in the reach. The flood categories used in the NWS are: *Minor Flooding* - minimal or no property damage, but possibly some public threat. *Moderate Flooding* - some inundation of structures and roads near stream. Some evacuations of people and/or transfer of property to higher elevations. *Major Flooding* - extensive inundation of structures and roads. Significant evacuations of people and/or transfer of property to higher elevations. *Record Flooding* - flooding which equals or exceeds the highest stage or discharge at a given site during the period of record keeping. Note: all three of the lower flood categories (minor, moderate, major) do not necessarily exist for a given forecast point. For example, at the level where a river reaches flood stage, it may be considered moderate flooding. However, at least one of these three flood categories must start at flood stage.