Boulder, WY Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Boulder Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Snow and Rain | Clearing |
| Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 45°FHi: 7°C | Lo: 30°FLo: -1°C | Hi: 45°FHi: 7°C |
| POP: 30% | POP: 90% | POP: 90% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 901 PM MDT Sun Oct 18 2026 

Boulder Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Boulder Weather Map
Boulder Quick Facts
Boulder Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 959 PM MDT Sun Oct 18 2026
Key Messages
- A weak weather system to the south brings increased clouds across southern Wyoming this evening, with a very low chance (less than 10%) of any light rain showers.
- Mostly clear skies with temperatures near seasonal normals overnight and into the day Monday.
- Another weak weather system moves across western Wyoming on Tuesday, with scattered showers, mainly in the mountains. Any precipitation accumulations will be minimal.
Discussion
... Issued at 220 AM MDT Sun Oct 18 2026
Ridging begins ...
Weather World