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Northwestern
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Best time to visit Northwestern
Data source：Meteostat
Last updated：2025-09
Weather in Northwestern throughout the year
- Spring (March–May): Average -33–45°F, cold and humid climate with relatively low rainfall, but staying warm is still necessary. Common activities: Hiking, birdwatching (with appropriate clothing). Recommended clothing: Warm waterproof jacket, sweater, waterproof pants, warm hat, gloves and scarf.
- Summer (June–August): Average 50–51°F, cool climate with moderate rainfall. Common activities: Hiking, camping, exploring fjords and waterfalls. Recommended clothing: Lightweight breathable jacket, long-sleeved shirt, comfortable long pants, waterproof jacket for backup.
- Autumn (September–November): Average 45–35°F, the climate turns cooler, rainfall increases, and the weather is changeable. Common activities: Viewing the Northern Lights (depending on weather conditions), photography. Recommended clothing: Warm waterproof jacket, waterproof pants, sweater, warm hat, gloves and scarf.
- Winter (December–February): Average -4.0–-34.0°F, cold climate, snowfall may be less, but temperatures are low and windy. Common activities: Skiing, snowshoeing (if there is snow). Recommended clothing: Thick warm waterproof jacket, waterproof pants, warm hat, scarf, gloves, warm underwear, snow boots.
Weather in Northwestern
Annual average temperature: approx. 38.8°F / Annual rainfall: approx. 600 mm / Summer humidity: 60%–70% / Rainiest month: March
Northwestern weather by month
Month
Temperature (°F)
Rainfall (mm)
January
30°F
46.1
February
29.3°F
74.3
March
30.2°F
85.1
April
36.9°F
32.8
May
45.3°F
26
June
50.2°F
30
July
52°F
32.7
August
50.5°F
45
September
45.3°F
54.7
October
35.8°F
72.7
November
35.1°F
51.7
December
24.8°F
49.3
7-day weather forecast for Northwestern
10/28
Wednesday
Heavy snow
37.9°F/27.5°F
10/29
Thursday
Overcast
39.2°F/25.9°F
10/30
Friday
Sunny
39.4°F/29.7°F
10/31
Saturday
Cloudy
38.1°F/30.6°F
11/1
Sunday
Patchy rain nearby
42.1°F/29.6°F
11/2
Monday
Overcast
47.3°F/39.2°F
11/3
Tuesday
Patchy rain nearby
47.4°F/39°F
