Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East
Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >
| NWS Forecast for: Northwestern San Juan Mountains Issued by: National Weather Service Grand Junction, CO Last Update: 434 PM MDT Tue May 19 2026 | |
| Tonight: Partly cloudy in the evening, then cloudy with a slight chance of thunderstorms and snow showers after midnight. Lows in the 30s. Gusts up to 25 mph in the evening. Chance of snow 20 percent. Wednesday: Mostly cloudy with a chance of showers, snow showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers, thunderstorms and snow showers in the afternoon. Highs 45 to 55. Chance of precipitation 50 percent. Wednesday Night: Mostly clear. Lows 25 to 35. Thursday: Sunny in the morning, then partly sunny with a slight chance of rain showers in the afternoon. Highs 55 to 65. West winds 10 to 15 mph in the afternoon. Gusts up to 25 mph. Chance of rain 10 percent. Thursday Night: Partly cloudy. Lows in the 30s. Gusts up to 25 mph in the evening. Friday: Sunny in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 55 to 65. Chance of rain 10 percent. Friday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the 30s. Saturday: Mostly sunny. Slight chance of showers, thunderstorms and snow showers in the afternoon. Highs 55 to 65. Chance of precipitation 20 percent. Saturday Night: Mostly clear. Lows in the 30s. Sunday: Sunny. Slight chance of showers and thunderstorms in the afternoon. Highs in the 60s. Chance of rain 10 percent. Sunday Night: Partly cloudy. Lows in the 30s. Memorial Day: Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the 60s. Chance of rain 50 percent. Monday Night: Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Lows 35 to 45. Chance of rain 20 percent. Tuesday: Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs 55 to 65. Chance of rain 70 percent. | |
| Zone Forecast: Northwestern San Juan Mountains | |
Visit your local NWS office at: https://www.weather.gov/gjt |