When to go · Sweet Grass
Sweet Grass, month by month
The best months for Sweet Grass: May, Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Dec–Feb (snow and cold, but the crossing is open 24/7).-2 °C (28 °F) / -13 °C (9 °F), 6 rain days28 °F (-2 °C) / 9 °F (-13 °C), 6 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Dec–Feb (snow and cold, but the crossing is open 24/7).1 °C (34 °F) / -10 °C (14 °F), 5 rain days34 °F (1 °C) / 14 °F (-10 °C), 5 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (May–Sep). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.7 °C (45 °F) / -5 °C (23 °F), 7 rain days45 °F (7 °C) / 23 °F (-5 °C), 7 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (May–Sep). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.14 °C (57 °F) / 0 °C (32 °F), 8 rain days57 °F (14 °C) / 32 °F (0 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Sweet Grass's best window: May–Sep.20 °C (68 °F) / 6 °C (43 °F), 10 rain days68 °F (20 °C) / 43 °F (6 °C), 10 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Sweet Grass's best window: May–Sep.25 °C (77 °F) / 11 °C (52 °F), 11 rain days77 °F (25 °C) / 52 °F (11 °C), 11 rain daysCrowds: High
- JulyGreatInside Sweet Grass's best window: May–Sep.29 °C (84 °F) / 14 °C (57 °F), 8 rain days84 °F (29 °C) / 57 °F (14 °C), 8 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Sweet Grass's best window: May–Sep.28 °C (82 °F) / 13 °C (55 °F), 7 rain days82 °F (28 °C) / 55 °F (13 °C), 7 rain daysCrowds: High
- SeptemberGreatInside Sweet Grass's best window: May–Sep.22 °C (72 °F) / 8 °C (46 °F), 7 rain days72 °F (22 °C) / 46 °F (8 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGoodOutside the best window (May–Sep). Across United States: Best all-round month: New England foliage, desert parks, cooler cities. High roads start closing late in the month.14 °C (57 °F) / 1 °C (34 °F), 6 rain days57 °F (14 °C) / 34 °F (1 °C), 6 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Sep). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.5 °C (41 °F) / -6 °C (21 °F), 6 rain days41 °F (5 °C) / 21 °F (-6 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Dec–Feb (snow and cold, but the crossing is open 24/7).-1 °C (30 °F) / -12 °C (10 °F), 6 rain days30 °F (-1 °C) / 10 °F (-12 °C), 6 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Sweet Grass, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 20 °C (68 °F)68 °F (20 °C)
Jun: 25 °C (77 °F)77 °F (25 °C)
Night low
May: 6 °C (43 °F)43 °F (6 °C)
Jun: 11 °C (52 °F)52 °F (11 °C)
Rain days
May: 10 (better)
Jun: 11
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Sweet Grass's best window: May–Sep.
June: Inside Sweet Grass's best window: May–Sep.
Sweet Grass: figures are long-term averages from this guide, not a forecast.