Monarch GeyserWhen to Go
Best Time to Visit Monarch Geyser
Best visited late spring through early autumn for road access and milder conditions; check park alerts for thermal area closures.
Summer
June-August · 5-25°C (41-77°F)
Easier access and full park services, but expect crowds at major thermal features.
Late Spring-Early Autumn
May and September · 0-15°C (32-59°F)
Fewer tourists and dramatic light; some higher-elevation roads may still be snow-affected.
Weather & Climate near Monarch Geyser
Climate
Monarch Geyser's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -17°C to 22°C. Moderate rainfall (673 mm/year).
Air Quality:
AQI 19
Good
Temperature & Rainfall
Temperature Range
22°
Warmest Month
-17°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -17° - -4° | -17° | 76 mm | - | - | 3.7 m/s | - | - |
| February | - | -16° - -1° | -14° | 57 mm | - | - | 3.4 m/s | - | - |
| March | - | -13° - 2° | -11° | 57 mm | - | - | 3.6 m/s | - | - |
| April | - | -9° - 6° | -6° | 46 mm | - | - | 3.6 m/s | - | - |
| May | - | -4° - 12° | 1° | 61 mm | - | - | 3.7 m/s | - | - |
| June | - | 0° - 17° | 6° | 64 mm | - | - | 3.6 m/s | - | - |
| July | - | 3° - 22° | 13° | 44 mm | - | - | 3.3 m/s | - | - |
| August | - | 2° - 22° | 12° | 46 mm | - | - | 3.3 m/s | - | - |
| September | - | -2° - 17° | 6° | 47 mm | - | - | 3.4 m/s | - | - |
| October | - | -5° - 11° | -1° | 39 mm | - | - | 3.6 m/s | - | - |
| November | - | -11° - 1° | -10° | 63 mm | - | - | 3.8 m/s | - | - |
| December | - | -16° - -4° | -16° | 73 mm | - | - | 3.6 m/s | - | - |
Getting There & Around
How to Get to Monarch Geyser
Monarch Geyser is in Yellowstone National Park’s Upper Geyser Basin. The basin is accessible via park roads from West Yellowstone or from Canyon Village depending on season and road conditions. Use the park’s visitor centers (Old Faithful or Old Faithful Visitor Education Center) for current directions and trail statuses.
Tips for Visiting Monarch Geyser
- Monarch Geyser is in Yellowstone's Upper Geyser Basin-use boardwalks and stay behind barriers; thermal ground is fragile and dangerous.
- Arrive at dawn or dusk to avoid crowds and to see softer light on the geyser's runoff channels.
- Check current park alerts-geyser activity and boardwalk closures change frequently.