Anchorage, AK Weather
Anchorage hourly forecast: next 24 hours
Today's high of 59°F (15°C) is about 5°F (3°C) below the typical August high of 64°F (18°C).
Current conditions in detail
Anchorage weather tomorrow (Monday, August 17)
Tomorrow in Anchorage looks light rain shower, with a high of 56° and an overnight low of 52°. There is a 89% chance of rain - plan accordingly. Winds top out near 10 mph, and the UV index reaches 1 (low).
Anchorage 14-day forecast
About the weather in Anchorage
Anchorage has a subarctic climate, marked by short, mild summers and long, severely cold winters. Average daytime highs range from about 21°F (-6°C) in January to around 67°F (20°C) in July, and the city records roughly 148 days of measurable precipitation a year.
Anchorage weather: quick facts
- Hottest month: July - highs near 67°F (20°C)
- Coldest month: January - highs near 21°F (-6°C)
- Record high: 90°F (32°C) · Record low: -20°F (-29°C) (2015–2024)
- Wettest month: September (17 rainy days) · Sunniest: June (12.6 h sun/day)
- Climate type: subarctic - short, mild summers and long, severely cold winters
- Snow: about 50 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 67°F (20°C) and overnight lows stay near 54°F (12°C). The coolest month is January, with typical highs of 21°F (-6°C) and lows around 12°F (-11°C). Based on 2015–2024 weather data, temperatures have reached as high as 90°F (32°C) and dropped as low as -20°F (-29°C).
Rain, sun and snow
September is usually the wettest month. It brings about 5.0 inches (128 mm) of rain over 17 days, while April is the driest. June brings the most sunshine, averaging 12.6 hours of sun a day. Snow falls on about 50 days in a typical year, mostly from September through April.
Season by season
Spring (March through May)
Spring in Anchorage is brisk and cold, with daytime highs averaging 45°F (7°C) and nights around 29°F (-2°C); expect showers on roughly 30 days across the season, plus around 10 snowy days.
Summer (June through August)
Summer in Anchorage is crisp but comfortable, with daytime highs averaging 66°F (19°C) and nights around 52°F (11°C); expect showers on roughly 38 days across the season.
Fall (September through November)
Fall in Anchorage runs cold, with daytime highs averaging 42°F (6°C) and nights around 32°F (0°C); expect showers on roughly 43 days across the season, plus around 11 snowy days.
Winter (December through February)
Winter in Anchorage is bitterly cold, with daytime highs averaging 23°F (-5°C) and nights around 14°F (-10°C); expect showers on roughly 37 days across the season, plus around 28 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Average temperatures in Anchorage by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 21° | 12° | 11 | 2.1 in | 2.8 h/day | 83% |
| February | 25° | 15° | 12 | 2.4 in | 4.5 h/day | 81% |
| March | 33° | 19° | 9 | 1.6 in | 7.5 h/day | 75% |
| April | 45° | 28° | 8 | 1.3 in | 10.0 h/day | 72% |
| May | 56° | 40° | 12 | 1.8 in | 11.3 h/day | 69% |
| June | 65° | 50° | 10 | 1.8 in | 12.6 h/day | 67% |
| July | 67° | 54° | 12 | 3.8 in | 10.8 h/day | 74% |
| August | 64° | 52° | 16 | 4.7 in | 8.8 h/day | 78% |
| September | 55° | 44° | 17 | 5.0 in | 6.8 h/day | 82% |
| October | 43° | 33° | 14 | 3.7 in | 5.0 h/day | 81% |
| November | 28° | 19° | 12 | 3.0 in | 3.3 h/day | 81% |
| December | 24° | 14° | 14 | 2.9 in | 1.5 h/day | 84% |