🇺🇸 Great Falls vs 🇵🇹 Lisbon
Weather Comparison
Current Weather Right Now
🇺🇸
Great Falls

47°F
Clear Sky
Feels like 45°F
H 47°F / L 44°F
Humidity: 58%
🇵🇹
Lisbon

72°F
Clear Sky
Feels like 71°F
H 74°F / L 70°F
Humidity: 41%
Climate Overview
Great Falls
Great Falls on the Missouri River is Montana's windiest city, exposed to the open Hi-Line plains. Chinook winds from the Rocky Mountains can raise temperatures 50°F in hours, setting world records for rapid temperature rises. The city experienced a 103°F rise in 24 hours in 1972 — the largest temperature change ever recorded.
Lisbon
Mediterranean — hot dry summers, mild wet winters, abundant sunshine
Lisbon is one of Europe's sunniest capitals with 2,800+ hours of sunshine annually. Summers are hot and dry; winters are mild. The Atlantic coast provides cooling breezes. The 2017–2024 tourism boom makes summer extremely crowded.
Seasonal Comparison
| Season | 🇺🇸 Great Falls | 🇵🇹 Lisbon |
|---|---|---|
| Spring | — | 55–70°F March–May |
| Summer | — | 73–86°F June–August |
| Fall | — | 61–79°F September–November |
| Winter | — | 48–59°F December–February |
Great Falls vs Lisbon: Frequently Asked Questions
Does Great Falls or Lisbon have better weather?
Great Falls and Lisbon have very different climates. Great Falls on the Missouri River is Montana's windiest city, exposed to the open Hi-Line plains. Ch Lisbon: Mediterranean — hot dry summers, mild wet winters, abundant sunshine. The best city depends on your preferred season and temperature range.
When is the best time to visit Great Falls vs Lisbon?
Best time for Great Falls: spring and fall. Best time for Lisbon: April, May, October, November.