See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
13°
Overcast
Feels Like: 14°
Min: 12°
Max: 16°
The next few hours will be overcast, with today reaching 16°C and dropping to 13°C. The coming days will be drizzle until evening.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:27
Sunrise
18:57
Sunset
Moon
Waxing Crescent
12:37
Moonrise
19:08
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Vallentuna today, September 15, 2026
Rain features in Vallentuna on September 15, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Expect a grey start, with morning cloud around 100% by 07:00. Outdoor plans early on should not rely on bright skies.
The day peaks near 16°C and cools toward 12°C. The air stays humid, with relative humidity between 72% and 94% and the peak around 08:00. Winds stay light, near 3.8 km/h by 23:00, so the day feels still more than breezy.
The second half of the day still looks unsettled, with rain probability around 76% by 21:00. Dense cloud near 100% at 12:00 keeps the feel grey. Visibility stays generally good near 26.1 km on average, though it can drop toward 2.4 km in thicker cloud or showers. Sunrise is at 06:27 and sunset at 18:57, giving 12 hours 30 minutes of sunlight today.
In short, treat September 15, 2026 in Vallentuna as a damp day: pack covers, watch the wetter hours, and expect a high near 16°C.
Frequently asked questions about weather in Vallentuna
How warm does it get in Vallentuna?
The warmest month in Vallentuna is July, with average high temperatures of 22°C. The average temperature during this period is around 18°C.
How cold does it get in Vallentuna?
The coldest month in Vallentuna is January, with average low temperatures of -4°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Vallentuna?
The wettest month in Vallentuna is August, with an average of 76mm of precipitation.
What is the driest time of year in Vallentuna?
The driest month in Vallentuna is April, with an average of 32mm of precipitation.
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