| NWS Forecast for: Arches/Grand Flat Issued by: National Weather Service Grand Junction, CO Last Update: 1233 PM MDT Wed Oct 7 2026 |  |
| This Afternoon: Sunny. Highs in the 80s. Tonight: Mostly clear. Lows 55 to 65. Thursday: Sunny. Highs in the 80s. Thursday Night: Mostly clear. Lows 55 to 65. Friday: Sunny. Highs in the 80s. Friday Night: Partly cloudy. Lows 55 to 65. Saturday: Mostly sunny with a slight chance of showers in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 75 to 85. Chance of rain 20 percent. Saturday Night: Showers likely with a slight chance of thunderstorms. Lows in the 50s. Chance of rain 70 percent. Sunday: Showers likely with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the 70s. Chance of rain 70 percent. Sunday Night: Showers likely with a slight chance of thunderstorms. Lows in the 50s. Chance of rain 70 percent. Columbus Day: Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the 70s. Chance of rain 40 percent. Monday Night: Mostly cloudy with a 40 percent chance of showers. Lows 45 to 55. Tuesday: Partly sunny. A chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs 65 to 75. Chance of rain 40 percent. | |
| Zone Forecast: Arches/Grand Flat | |
Visit your local NWS office at: https://www.weather.gov/gjt |