15-Day Weather Forecast - Trondheim
15-day weather forecast for Trondheim: temperatures from 4°C (39°F) to 18°C (64°F). Average daily high 12°C (54°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Trondheim's 15-day outlook ranges from a low of 4°C to a high of 18°C, with an average daytime high near 12°C. That's 1° below the long-term average high of 13°C for this time of year. It continues a recent pattern — 6 of the last 19 days with published data have run cooler than normal. Air quality is currently good (AQI 20), with no notable outdoor health concerns.
Today vs Normal
The long-term average high for today is 13°C.
6 of the last 19 days with published data ran above normal.
That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Extended Outlook for Trondheim
Over the next 15 days, Trondheim is forecast to see temperatures ranging from 3°C to 18°C, averaging a daily high of 12°C. The extended outlook indicates significant rainfall totalling 30.1 mm spread across 12 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.