See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
25°
Clear
Feels Like: 10°
Min: 12°
Max: 26°
The next few hours will be clear, with today reaching 26°C and dropping to 17°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:57
Sunrise
19:12
Sunset
Moon
Waxing Crescent
13:22
Moonrise
21:01
Moonset
Daily Forecast
Wednesday
Today
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
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UV Index
Humidity
Weather in Saint Helens tomorrow, September 17, 2026
Expect a mostly clear day in Saint Helens on September 17, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The opening hours look fair, as cloud stays near 49% around 11:00. Morning errands should face fewer weather interruptions.
The temperature range runs from about 9°C up to 22°C. Expect humidity between 47% and 83%, most humid near 17:00. Expect gentle winds, highest near 00:00 at 4.6 km/h.
Afternoon conditions open up, holding cloud close to 45% near 12:00. The day finishes on a milder, brighter note. Visibility stays near 16.1 km. The sun rises at 06:59 and sets at 19:10, for a total of 12 hours 11 minutes of sunlight today.
In short, September 17, 2026 looks like a fine day in Saint Helens for being outside, peaking around 22°C.
Frequently asked questions about weather in Saint Helens
How warm does it get in Saint Helens?
The warmest month in Saint Helens is August, with average high temperatures of 29°C. The average temperature during this period is around 21°C.
How cold does it get in Saint Helens?
The coldest month in Saint Helens is February, with average low temperatures of 2°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Saint Helens?
The wettest month in Saint Helens is December, with an average of 242mm of precipitation.
What is the driest time of year in Saint Helens?
The driest month in Saint Helens is July, with an average of 8mm of precipitation.
