Marin County, CA Weather Forecast

County weather hub

91°

Sunny

Compare major city weather across Marin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Thursday, October 15, 2026

Wind: 0 to 5 mph N

Thursday

Sunny, with a high near 91.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Marin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 6 of 6 mapped cities in Marin County.

Page Snapshot

Page focus: county weather
Forecast window: Oct 15 to Oct 18, 2026
Latest sync: Oct 12, 2026 6:28 PM PDT
Forecast office: MTR
Source: NOAA / NWS

Next High

91°F

Thursday

Next Low

50°F

Thursday Night

Rain Outlook

Periods mentioning precipitation

Windiest

3 to 7 mph

Sunday Night

Daily Outlook

Today

Oct 15

Sunny

91 °F

/ 50°F

Wind 0 to 5 mph

Fri

Oct 16

Sunny

91 °F

/ 50°F

Wind 1 to 5 mph

Sat

Oct 17

Sunny

86 °F

/ 48°F

Wind 0 to 5 mph

Sun

Oct 18

Areas Of Fog then Sunny

77 °F

/ 46°F

Wind 0 to 6 mph

This Week in Marin County

Thursday looks like the warmest upcoming period in Marin County at 91 degrees F.

Sunday Night is the coolest period ahead with temperatures near 46 degrees F.

The strongest winds are forecast for Sunday Night at about 3 to 7 mph W.

The forecast from Oct 15 through Oct 18 stays mostly dry.

Forecast Details

Last updated: Oct 12, 2026 6:28 PM PDT
Coverage: 5 days
Time zone: America/Los_Angeles
Forecast office: MTR
Radar station: KDAX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Thursday Night

Oct 15

50°F

Mostly Clear

0 to 5 mph N

Mostly clear, with a low around 50.

Friday

Oct 16

91°F

Sunny

1 to 5 mph S

Sunny, with a high near 91.

Friday Night

Oct 16

50°F

Mostly Clear

0 to 5 mph NNW

Mostly clear, with a low around 50.

Saturday

Oct 17

86°F

Sunny

0 to 5 mph WNW

Sunny, with a high near 86.

Saturday Night

Oct 17

48°F

Mostly Clear then Patchy Fog

0 to 5 mph WNW

Patchy fog after 1am. Mostly clear, with a low around 48.

Sunday

Oct 18

77°F

Areas Of Fog then Sunny

0 to 6 mph WNW

Areas of fog before 10am. Sunny, with a high near 77.

Sunday Night

Oct 18

46°F

Partly Cloudy

3 to 7 mph W

Partly cloudy, with a low around 46.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Thursday Oct 15	Sunny	91°F	0 to 5 mph N	Sunny, with a high near 91.
Thursday Night Oct 15	Mostly Clear	50°F	0 to 5 mph N	Mostly clear, with a low around 50.
Friday Oct 16	Sunny	91°F	1 to 5 mph S	Sunny, with a high near 91.
Friday Night Oct 16	Mostly Clear	50°F	0 to 5 mph NNW	Mostly clear, with a low around 50.
Saturday Oct 17	Sunny	86°F	0 to 5 mph WNW	Sunny, with a high near 86.
Saturday Night Oct 17	Mostly Clear then Patchy Fog	48°F	0 to 5 mph WNW	Patchy fog after 1am. Mostly clear, with a low around 48.
Sunday Oct 18	Areas Of Fog then Sunny	77°F	0 to 6 mph WNW	Areas of fog before 10am. Sunny, with a high near 77.
Sunday Night Oct 18	Partly Cloudy	46°F	3 to 7 mph W	Partly cloudy, with a low around 46.

Major City Forecasts

Live forecast snapshots for major cities across Marin County.

Coverage

Tracked cities

Coverage

100%

Forecast coverage currently spans 6 of 6 mapped cities in Marin County.

Largest mapped city population in this region: 58,528.

Region Links

California weather

Statewide weather overview

United States weather

National weather entry point

Marin Civic Center image

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.