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San Francisco, CA Weather Forecast

View the 9-day weather forecast for San Francisco, California, including daily highs and lows, rain chances, rainfall amounts, wind speeds, humidity, and short-range versus extended BlendedModel guidance.

The latest 9-day BlendedModel forecast for San Francisco, California is in. The warmest stretch peaks on Fri near 67, while the coolest low settles in on Sun near 55. The best rain signal shows up on Sat at 20 percent and about 0.00 inches. The outlook starts with a near-term signal before shifting to extended signal later in the period.

Forecast data refreshed automatically every few hours. Showing the latest available BlendedModel forecast for San Francisco, California.

Last updated:

Latest BlendedModel forecast loaded for San Francisco, California.

About BlendedModel
BlendedModel is an experimental forecast system developed by Engineer.Guide Research and Development Lab. Forecast pages are refreshed automatically every few hours so you always see the latest guidance.

9-Day Outlook for San Francisco, California

A scan-first 9-day view generated for fast daily reading, with the main call for each day and the core details underneath.

Today's Weather Story
Today looks mostly cloudy with low rain chances, wind near 17 mph, and humid air, and a minimal storm signal.
National Weather Service
Beach Hazards Statement
Beach Hazards Statement issued June 18 at 4:42AM PDT until June 21 at 5:00AM PDT by NWS San Francisco CA
Moderate · Expected · Starts 2026-06-18T04:42:00-07:00 · Expires 2026-06-18T12:45:00-07:00
Check Hourly Timing
A quick look at the next several hours for temperature, rain chance, wind, and storm signal.
5 AM PDT
56°
Mostly Cloudy
Precip 0% · Wind 5 mph
6 AM PDT
57°
Cloudy
Precip 0% · Wind 6 mph
7 AM PDT
58°
Mostly Cloudy
Precip 0% · Wind 9 mph
8 AM PDT
59°
Cloudy
Precip 0% · Wind 9 mph
9 AM PDT
61°
Mostly Cloudy
Precip 0% · Wind 11 mph
10 AM PDT
63°
Mostly Cloudy
Precip 0% · Wind 12 mph
11 AM PDT
64°
Partly Cloudy
Precip 0% · Wind 12 mph
12 PM PDT
66°
Sunny
Precip 0% · Wind 14 mph
1 PM PDT
66°
Partly Cloudy
Precip 0% · Wind 16 mph
2 PM PDT
65°
Partly Cloudy
Precip 0% · Wind 16 mph
3 PM PDT
64°
Partly Cloudy
Precip 0% · Wind 17 mph
4 PM PDT
64°
Partly Cloudy
Precip 0% · Wind 17 mph
Thu
Jun 18
66°
Low 56°
Near-Term Signal
Mostly Cloudy
Precip 0% · Rain 0.00 in · Wind 17 mph · Humidity 94%
Thunder Index
1/100
Minimal Storm Signal
A 0-100 signal blending near-term storm ingredients with extended pattern guidance.
Fri
Jun 19
67°
Low 57°
Near-Term Signal
Cloudy
Precip 0% · Rain 0.00 in · Wind 18 mph · Humidity 94%
Thunder Index
1/100
Minimal Storm Signal
Sat
Jun 20
62°
Low 57°
Extended Signal
Humid
Precip 20% · Rain 0.00 in · Wind 11 mph · Humidity 89%
Thunder Index
10/100
Minimal Storm Signal
Sun
Jun 21
61°
Low 55°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 11 mph · Humidity 93%
Thunder Index
13/100
Minimal Storm Signal
Mon
Jun 22
61°
Low 55°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 10 mph · Humidity 95%
Thunder Index
13/100
Minimal Storm Signal
Tue
Jun 23
62°
Low 55°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 9 mph · Humidity 98%
Thunder Index
15/100
Minimal Storm Signal
Wed
Jun 24
62°
Low 55°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 9 mph · Humidity 97%
Thunder Index
14/100
Minimal Storm Signal
Thu
Jun 25
62°
Low 56°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 10 mph · Humidity 96%
Thunder Index
13/100
Minimal Storm Signal
Fri
Jun 26
63°
Low 56°
Extended Signal
Humid
Precip 0% · Rain 0.00 in · Wind 14 mph · Humidity 93%
Thunder Index
7/100
Minimal Storm Signal
Official alerts, when active, come from the National Weather Service.

San Francisco Weather Questions, Answered

Quick answers generated from the latest 9-day BlendedModel forecast for San Francisco, California.

Will it rain today in San Francisco?

Rain is unlikely in San Francisco, CA today, with only a 0 percent chance of precipitation.

How hot will it get in San Francisco today?

Today's forecast for San Francisco, CA calls for a high near 66 degrees and a low around 56 degrees.

Are thunderstorms expected in San Francisco this week?

No strong thunderstorm signal shows up for San Francisco, CA this week. The highest Thunder Index is 15 out of 100 on Tue.

What is the warmest day this week in San Francisco?

Fri looks like the warmest day in San Francisco, CA, with a high near 67 degrees.

Nearby Forecasts

Quick links to a few nearby cities if you want to compare the next 9 days around San Francisco, California.

Browse all BlendedModel pages