Best Time to Visit Montana: Month-by-Month Guide

Best months for Montana: September, August, July, June.

  • Best months for Montana: September, August, July, June.
  • Peak season is August, July, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
  • Shoulder season: April, May, September, October. Good weather without the busiest period.
  • Wettest months: May, April, June.
  • The least pleasant month is January (score 4.7).

Year at a glance

4° -3° J 7° -2° F 12° 2° M 18° 7° A 23° 12° M 27° 16° J 29° 17° J 30° 17° A 24° 13° S 18° 8° O 11° 3° N 5° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 4°C-3°C46 mm 8– – 4.7
February 7°C-2°C43 mm 8– – 5.3
March 12°C2°C63 mm 10– – 6.2
April 18°C7°C73 mm 10– – 7.1
May 23°C12°C77 mm 11– – 7.6
June 27°C16°C75 mm 10– – 7.8
July 29°C17°C62 mm 8– – 8.0
August 30°C17°C43 mm 6– – 8.1
September 24°C13°C55 mm 6– – 8.3
October 18°C8°C51 mm 7– – 7.5
November 11°C3°C44 mm 8– – 6.3
December 5°C-2°C50 mm 9– – 4.9

Frequently asked questions

When is the best time to visit Montana?

The best months are September, August, July, June.

When is the rainy season in Montana?

The wettest months are May, April, June.