Live Weather & Forecast
Weather in Petersburg
Alaska, United States · Real-time conditions & 3-day outlook
2°C
Feels like -1°C
36°F / Feels 31°F
Light snow
Petersburg, Alaska
🌞 Daytime
Updated: 2026-04-13 11:00
Humidity
93%
Wind
11.5 km/h S
Wind Gust
14.3 km/h
Pressure
1006 mb
Visibility
14 km
UV Index
1.7
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
-0.1°C
Wind Degree
170°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
148.7 μg/m³
NO₂
0.9 μg/m³
O₃
92 μg/m³
SO₂
1.3 μg/m³
PM 2.5
4.6 μg/m³
PM 10
7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Petersburg, Alaska
12 AM
3°
Fog
1 AM
2°
Moderate snow
2 AM
2°
Overcast
3 AM
2°
Overcast
4 AM
2°
Moderate snow
5 AM
1°
Overcast
6 AM
1°
Overcast
7 AM
1°
Overcast
8 AM
1°
Overcast
9 AM
1°
Overcast
10 AM
2°
Cloudy
11 AM
2°
Light snow
12 PM
3°
Overcast
1 PM
2°
Overcast
2 PM
2°
Overcast
3 PM
1°
Overcast
4 PM
1°
Heavy snow
5 PM
1°
Overcast
6 PM
1°
Overcast
7 PM
0°
Heavy snow
8 PM
-1°
Mist
9 PM
-1°
Mist
10 PM
-1°
Overcast
11 PM
-1°
Overcast
3-Day Forecast
Daily overview for Petersburg, Alaska
Today
Moderate rain
4°
/
-1°
🌧️ 85% chance of rain
❄️ 4% chance of snow
💧 Avg. humidity: 93%
💨 Max wind: 12.2 km/h
🌧️ Total precip: 11.19 mm
☀️ UV Index: 0.5
🌅 Sunrise: 05:49 AM
🌇 Sunset: 07:57 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
5°
/
-5°
🌧️ 73% chance of rain
❄️ 2% chance of snow
💧 Avg. humidity: 81%
💨 Max wind: 6.8 km/h
🌧️ Total precip: 1.15 mm
☀️ UV Index: 0.7
🌅 Sunrise: 05:46 AM
🌇 Sunset: 07:59 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
9°
/
-7°
🌧️ 0% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 05:44 AM
🌇 Sunset: 08:02 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Petersburg
Plan your trip to Petersburg, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Petersburg?
Current conditions in Petersburg: Light snow, temperature 2°C, humidity 93%.
What is the best time to visit Petersburg?
The best time to visit Petersburg is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Petersburg?
Petersburg is located at approximately 56.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Petersburg?
The wettest period in Petersburg is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Petersburg?
For visits to Petersburg during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Petersburg in?
Petersburg is located in United States, in the state of Alaska.
What are the public holidays in Petersburg in 2026?
View the 2026 public holidays for Petersburg on our Holidays page.
What are the GPS coordinates used for the weather forecast in Petersburg?
The weather forecast for Petersburg uses coordinates 56.8134, -132.9572.