Weather forecast for 10 daysHellnar, Iceland

Weather forecast for the weekend

Sunday 18. Oct 2026

  • 9°C
  • 5°C
Rain / Wind
Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 4mm
  • Wind: 62km/hSSW 192°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 08:36 GMT
  • Sunset: 18:03 GMT
  • ▼
On Sunday, in Hellnar, rain will combine with persistent winds.
The chance of precipitation for today is high. However, the rain will be light. Modest temperature shifts from a high of a frosty 9°C to a low of a wintry 5°C are anticipated.
The maximum temperature will be a few degrees higher than the regular high of 6.8°C in October.
Sunrise will be at 08:36 and sunset at 18:03; the daylight will last for 9h and 26min.

10-day overview

Daily temperatures

Warmest day: today 9°C.
Coldest period: Thursday - Friday 4°C.

Chance of precipitation

Highest chance: today 100%.

Long-term weather forecast

  • Sunday
  • 18. Oct 2026
  • 9°C
  • 5°C
Rain / Wind
Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 4mm
  • Wind: 62km/hSSW 192°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 08:36 GMT
  • Sunset: 18:03 GMT
  • ▼
  • Monday
  • 19. Oct 2026
  • 7°C
  • 4°C
Showers / Wind
Showers / Wind
  • Precip. probability: 59%
  • Precipitation: 16mm
  • Wind: 52km/hSSW 203°
  • Humidity: 71%
  • UV index: 0
  • Sunrise: 08:39 GMT
  • Sunset: 17:59 GMT
  • ▼
  • Tuesday
  • 20. Oct 2026
  • 6°C
  • 2°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 6mm
  • Wind: 23km/hSSE 164°
  • Humidity: 75%
  • UV index: 0
  • Sunrise: 08:42 GMT
  • Sunset: 17:55 GMT
  • ▼
  • Wednesday
  • 21. Oct 2026
  • 5°C
  • 2°C
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 6mm
  • Wind: 22km/hE 98°
  • Humidity: 82%
  • UV index: 0
  • Sunrise: 08:46 GMT
  • Sunset: 17:52 GMT
  • ▼
  • Thursday
  • 22. Oct 2026
  • 4°C
  • 2°C
Light Rain
Light Rain
  • Precip. probability: 46%
  • Precipitation: 6mm
  • Wind: 19km/hENE 78°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 08:49 GMT
  • Sunset: 17:48 GMT
  • ▼
  • Friday
  • 23. Oct 2026
  • 4°C
  • 1°C
AM Rain / Snow Showers
AM Rain / Snow Showers
  • Precip. probability: 30%
  • Precipitation: 5mm
  • Wind: 22km/hNE 50°
  • Humidity: 82%
  • UV index: 0
  • Sunrise: 08:52 GMT
  • Sunset: 17:45 GMT
  • ▼
  • Saturday
  • 24. Oct 2026
  • 5°C
  • 3°C
PM Showers
PM Showers
  • Precip. probability: 44%
  • Precipitation: 1mm
  • Wind: 31km/hNE 44°
  • Humidity: 79%
  • UV index: 0
  • Sunrise: 08:55 GMT
  • Sunset: 17:42 GMT
  • ▼
  • Sunday
  • 25. Oct 2026
  • 5°C
  • 3°C
Showers / Wind
Showers / Wind
  • Precip. probability: 49%
  • Precipitation: 4mm
  • Wind: 35km/hNNE 19°
  • Humidity: 83%
  • UV index: 0
  • Sunrise: 08:58 GMT
  • Sunset: 17:38 GMT
  • ▼
  • Monday
  • 26. Oct 2026
  • 5°C
  • 3°C
AM Showers / Wind
AM Showers / Wind
  • Precip. probability: 47%
  • Precipitation: 5mm
  • Wind: 32km/hNNE 25°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 09:02 GMT
  • Sunset: 17:35 GMT
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 5°C
  • 4°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 18%
  • Precipitation: 2mm
  • Wind: 28km/hNE 43°
  • Humidity: 79%
  • UV index: 0
  • Sunrise: 09:05 GMT
  • Sunset: 17:31 GMT
  • ▼
Models point to a combination of primarily damp and occasionally snow-filled and cloudy weather is predicted.
Rain is forecasted for Sunday through Thursday, Saturday through next Tuesday.
With a 30% probability, snowfall is anticipated only on Friday. Anticipated precipitation will be intense at 16mm.
In the upcoming days, the highest temperature will range between 4°C and 9°C, while the forecast minimum temperature falls between 1°C and 5°C.
With a high of 9°C, today is the warmest day; the coldest days will be Thursday and Friday, with a maximum of 4°C.
Updated: Oct 18, 2026 @ 01:34:35 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Hellnar, rain will be accompanied by windy weather.

Light precipitation of 4mm is forecasted. The possibility of rainfall is high at 100%.

Today, the highest temperature will be 9°C, while the lowest temperature will be 5°C.
The maximum temperature today will be a few degrees higher than the average highest temperature in October. The lowest temperature today will be in line with the average low temperature.

On Sunday, in Hellnar, sunrise will be at 08:36 and sunset at 18:03 (GMT).

In Hellnar, today, there will be 9h and 26min of daylight.