Today's Weather Forecast - Plymouth

Today's weather in Plymouth. high 20°C (68°F), low 15°C (59°F). Overcast.

Today’s Hourly Weather Outlook

Morning6 AM – Noon17°
Wind speed
8 km/h
Rain probability
13%
AfternoonNoon – 6 PM19°
Wind speed
20 km/h
Rain probability
12%
Evening6 PM – Midn18°
Wind speed
12 km/h
Rain probability
0%
NightMidn – 6 AM16°
Wind speed
10 km/h
Rain probability
36%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 6:15 AM
Total Daylight
75% of day elapsedSolar noon 1:12 PM
Sunset
Dusk 8:09 PM
Remaining3h 10m
Solar elevation29°
vs yesterday-6 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: O3
Monitoring station
Plymouth Centre, United Kingdom
PM2.5
13μg/m³
PM10
8μg/m³
O₃
20.4ppb
NO₂
3.2ppb
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Plymouth is forecast to reach a high of 20°C today, with an overnight low around 15°C. That's 3° above the long-term average high of 17°C for this time of year. It continues a recent pattern — 27 of the last 28 days with published data have run warmer than normal. Expect a low chance of rain (36% probability) and a gentle breeze averaging 20 km/h. Air quality is currently good (AQI 26), with no notable outdoor health concerns.

Today vs Normal

20°C+3° above normal

The long-term average high for today is 17°C.

27 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-28: 21°C21°2026-08-29: 20°C20°2026-08-30: 20°C20°2026-08-31: 19°C19°2026-09-01: 20°C20°2026-09-02: 20°C20°2026-09-03: 22°C22°2026-09-04: 19°C19°2026-09-05: 20°C20°2026-09-06: 23°C23°2026-09-07: 19°C19°2026-09-08: 17°C17°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.