See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:03
Sunrise
18:25
Sunset
Moon
Waxing Gibbous
18:21
Moonrise
04:28
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Harstad.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Harstad.
View stargazing scoreWeather in Harstad today, September 25, 2026
Harstad starts September 25, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Cloud leads the morning, peaking close to 100% near 05:00. Sunshine has little room until later in the day.
The day peaks near 10°C and cools toward 6°C. Moisture in the air spans 76%-98%, with the highest values around 05:00. A lighter breeze peaks around 08:00 near 1.7 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 72% around 21:00. Cloud also stays substantial, close to 100% near 12:00. Views remain open at about 16.1 km. The sun rises at 07:03 and sets at 18:25, for a total of 11 hours 22 minutes of sunlight today.
The practical takeaway for Harstad on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 10°C.
