textproduct: Western and Central Wyoming
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- A mostly sunny and cool autumn day today, with highs in the 50s.
- A warming trend will return for the upcoming weekend, with highs reaching the upper 50s west of the Divide, and the 60s to lower 70s for central Wyoming.
- Rain chances start to move back into southwest Wyoming for the latter half of the week, but current chances remain low for most areas.
DISCUSSION
Issued at 229 AM MDT Fri Oct 16 2026
High pressure will remain the dominant feature this weekend, deflecting weather systems into southern Canada. Temperatures today will recover back into the 50s after starting in the 20s across the state. The ridge will bring even warmer temperatures on Saturday, with highs west of the divide around 60 degrees, while areas across central WY reach well into the 60s. Gusty southwest winds reaching 30 mph will sweep from Rock Springs northeast across Casper into northeast Wyoming. These warmer winds will bring even warmer temperatures across Johnson County Saturday, with highs well into the 70s.
A weak cold front is dragged southward late Saturday from a weather system crossing southern Canada. This will bring light north winds back into central WY, bringing high temps back down into the 50s for Sunday.
The next weather impact into next week depends on placement of the trough dropping down the West Coast. Moisture wrapping around the bottom of the trough may feed into southwest WY for the latter half of the week, bringing a chance for showers. Currently models have been leaning away from any significant rainfall, and have been delaying the initial arrival of the moisture farther into next week.
AVIATION /12Z TAFS THROUGH 12Z SATURDAY/
Issued at 528 AM MDT Fri Oct 16 2026
VFR conditions through the next 24 hours with clear skies. Morning satellite imagery shows only small amounts of light fog around KBPI/KPNA, which will not impact those airports before sunrise. Most sites will see light south winds around 5kts today. Areas from near KRKS to KCPR to KBYG will see breezy southwest winds this afternoon, with a few gusts 20 to 25kts. Winds around KCPR will remain elevated and gust through the night tonight.
RIW WATCHES/WARNINGS/ADVISORIES
Freeze Warning until 9 AM MDT this morning for WYZ005-006-010- 011-016>020-028>030.
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