Will it rain in San Francisco on Wednesday, October 21, 2026?

Yes, the chance of rain is 56%, with 14.6 mm of rain expected in total.

What will the temperature be in San Francisco on Wednesday, October 21, 2026?

A high of 16°C and a low of 13°C are expected. Conditions: light showers.

What time are sunrise and sunset in San Francisco on October 21, 2026?

Sunrise is at 07:23 and sunset at 18:23 (local time); day length 11 h 0 min.

How reliable is this forecast?

Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.

Weather · California

San Francisco Weather on Wednesday, October 21, 2026

San Francisco · Wednesday, October 21 2026

16°13°

Light showers

High 16°, low 13°

Chance of rain: 56%; 14.6 mm
Wind: 15 km/h; southeast
UV index: 3; Low
Sunrise: 07:23; Sunset 18:23
Day length: 11 h 0 min
Moon: Waxing gibbous; 81% illuminated

Updated: 10 h ago · Source: Open-Meteo

Forecast for San Francisco on Wednesday, October 21, 2026: light showers, with a high of 16°C and a low of 13°C. The chance of rain is 56%, with 14.6 mm of precipitation expected in total. Wind from the southeast at up to 15 km/h. Sunrise is at 07:23 and sunset at 18:23; day length 11 h 0 min. 3° cooler than the previous day. This day is 3° cooler than the 7-day average. Rain is most likely between 06:00 and 12:00.

What to wear and what to watch out for

Take an umbrella or a raincoat with you.
Cool in the morning and evening: dress in layers and bring a sweater or jacket.

Wednesday, October 21: hour by hour

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Weather nearby on October 21

Frequently asked questions

Will it rain in San Francisco on Wednesday, October 21, 2026?: Yes, the chance of rain is 56%, with 14.6 mm of rain expected in total.
What will the temperature be in San Francisco on Wednesday, October 21, 2026?: A high of 16°C and a low of 13°C are expected. Conditions: light showers.
What time are sunrise and sunset in San Francisco on October 21, 2026?: Sunrise is at 07:23 and sunset at 18:23 (local time); day length 11 h 0 min.
How reliable is this forecast?: Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.