textproduct: Grand Junction

KEY MESSAGES

- Sunday will be relatively quiet and dry for most of the area.

- Elevated to critical fire weather conditions are possible Monday afternoon due to localized areas of single-digit relative humidities in southwest Colorado.

- Daytime highs will begin to climb for the week ahead, with increasing chances for showers/storms for the high terrain by mid week

DISCUSSION

Issued at 1012 PM MDT Sat May 30 2026

Cloud cover will begin to diminish as we move into the early morning hours Sunday. Precipitation chances will also be less pronounced Sunday, with most locations drying out and warming 5-10 degrees above Saturday's daytime highs. Some available lingering moisture may be enough to produce light showers in the northern parts of our CWA, but nothing noteworthy in the way of accumulations. Most areas could likely just see virga.

WARM UP FOR THE WORK WEEK:

Southwest flow aloft will allow daytime highs to rise as we head into the work week. Most locations will see highs in the upper 80s to low 90s for most of the week. A generally quiet weather pattern will be in place for Monday and Tuesday, before moisture advection from the south begins to take place. Monday looks to be the driest day this week, with single-digit relative humidities for the lower valleys along and south of I-70. Localized gusty winds also appear to take shape in the same area. As a result, critical fire weather conditions are anticipated. Coverage of these conditions appears to be best in southwest Colorado, but remains low enough to hold off on any fire weather products at this time.

Moisture advection intensifies on Wednesday leading to increasing chances for afternoon showers and storms over the higher terrain, specifically targeted at the southern mountains. Afternoon preciptation chances continue through the end of the week for the central and southern mountains but coverage will decrease late week as dry air propagates through from the west. As global ensemble guidance stands now, there are a few different outcomes when it comes to PWATs for this mid-late week moisture. The GEFS seems to be favoring higher PWATs, with moisture advection tracking further north through our CWA. On the other hand, the Euro ensemble does not appear to drag moisture further north, instead keeping it confined to the southern part of our CWA. We will see which outcome becomes favored in the coming days.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 1113 PM MDT Sat May 30 2026

VFR is expected over the next 24 hours with mid to high passing clouds at times. Wind gusts over 25 mph are possible along the Colorado and Eagle River valley corridors tomorrow afternoon otherwise winds will be light.

GJT WATCHES/WARNINGS/ADVISORIES

CO...None. UT...None.