South Tacoma, Tacoma Weather
South Tacoma weather this week
Over the next 7 days in South Tacoma, daytime highs range from 8°C to 13°C and night-time lows from 3°C to 9°C. The warmest afternoon is likely tomorrow at 13°C, while the coolest night is expected on Thursday night at 3°C. Temperatures trend cooler through the week, dropping by about 3°C.
Rain is most likely today, tomorrow, Sunday and Monday, with roughly 16 mm forecast in total over the week.
Winds stay mostly light this week, peaking at about 23 km/h on Sunday. UV levels stay moderate or lower, peaking at 2. Average humidity is high at around 80%, which can make it feel muggy.
| Day | Conditions | High / Low | Rain chance | Rain | Max wind |
|---|---|---|---|---|---|
| Today (Friday) | Drizzle | 12° / 9° | 60% | 2.4 mm | 18 km/h |
| Tomorrow (Saturday) | Drizzle | 13° / 8° | 92% | 1.4 mm | 20 km/h |
| Sunday | Rain | 11° / 7° | 74% | 10.6 mm | 23 km/h |
| Monday | Light drizzle | 10° / 6° | 55% | 0.2 mm | 6 km/h |
| Tuesday | Overcast | 10° / 4° | 26% | 0.0 mm | 6 km/h |
| Wednesday | Light drizzle | 8° / 4° | 33% | 1.0 mm | 9 km/h |
| Thursday | Overcast | 8° / 3° | 8% | 0.0 mm | 9 km/h |
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Today's outlook for South Tacoma
At 23:00 local time it is 9°C in South Tacoma under clear skies, feeling like 6°C. Today's forecast high is 12°C and the low is 9°C, and the day overall looks drizzly. Rain is likely today (60% chance, around 2.4 mm), so keep an umbrella handy. Winds are blowing at about 15 km/h from the south. Humidity is 78%.
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Climate of South Tacoma: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in South Tacoma, with average daytime highs around 23°C. February is the coolest, when nights typically fall to about 1°C and frost is possible on the coldest nights.
The area receives about 1230 mm of rain in a typical year. Most of it falls from October to March (around 74% of the yearly total), and November is the wettest month at roughly 188 mm.
For outdoor plans and travel, June to September usually offer the most comfortable weather in South Tacoma, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 7° | 2° | 174 mm | 90% |
| Feb | 8° | 1° | 108 mm | 87% |
| Mar | 10° | 3° | 138 mm | 85% |
| Apr | 13° | 5° | 95 mm | 82% |
| May | 18° | 8° | 70 mm | 80% |
| Jun | 20° | 11° | 51 mm | 80% |
| Jul | 23° | 13° | 19 mm | 77% |
| Aug | 23° | 13° | 29 mm | 76% |
| Sep | 20° | 11° | 58 mm | 78% |
| Oct | 15° | 7° | 125 mm | 84% |
| Nov | 10° | 4° | 188 mm | 89% |
| Dec | 6° | 1° | 175 mm | 90% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around South Tacoma. Values describe typical conditions, not a forecast.
About South Tacoma weather
South Tacoma is one of many towns in Washington's stark east–west divide — mild, wet Pacific coast and Puget Sound versus a much drier, more continental interior, about 40 km south of Seattle. Before the rains arrive, there's mild, dry summers (June–September) west of the Cascades. Cooler months mean mild, rainy winters (November–February) in the west, colder with more snow east of the mountains. This page shows live, auto-refreshing weather for South Tacoma: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Los_Angeles.
Frequently asked questions
South Tacoma is about 40 km south of Seattle, in Washington.
South Tacoma sees mild, rainy winters (November–February) in the west, colder with more snow east of the mountains.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for South Tacoma's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in South Tacoma, with average daytime highs of about 23°C and nights around 13°C.
The coldest nights come in February, when the average low is about 1°C and daytime highs reach around 8°C. Frost is possible on clear, calm nights.
South Tacoma receives about 1230 mm of rain in a typical year. November is the wettest month at roughly 188 mm, and the main rainy period is October to March.
June to September usually offer the most comfortable weather in South Tacoma, with mild daytime temperatures and little rain.
In November South Tacoma typically sees daytime highs near 10°C and lows near 4°C, with about 188 mm of rain over the month and average humidity around 89%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for South Tacoma is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
South Tacoma's day-to-day weather follows the broader pattern of Washington described above. See the hourly weather forecast or the air quality index for more detail.