textproduct: Pocatello
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
- Upper level low brings showers and thunderstorms today
- Cool temperatures in extensive cloud cover and showers today
- Warming trend Wednesday through Friday. Slightly cooler over the weekend.
DISCUSSION
Issued at 216 AM MDT Tue Sep 22 2026
An upper level low will move north with increasing moisture today with a chance of showers and thunderstorms throughout the day especially in the afternoon and early evening. As the upper trof moves east tonight will see much drier conditions later tonight. Will have a warming trend Wednesday into Friday with many low elevations around 80 Thursday and Friday. Expect much breezier conditions as a weak cold front moves through late Friday. Will see some cooler temperatures in the latter part of the forecast Saturday into the early part of next week. Will see a chance of precipitation again Sunday and Monday with the next system. There is at least a chance the coolest temperatures we see will be early next week with some highs possibly only in the 50s mountains and 60s valleys.
AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/
Issued at 512 AM MDT Tue Sep 22 2026
An upper level system will open and move north today and spread showers and thunderstorms into the region. Have prob 30 thunderstorms in all TAF sites after 20Z with vicinity showers by 18Z and showers after 02Z. Main impact will be the thunderstorms expected this afternoon and evening.
FIRE WEATHER
Issued at 216 AM MDT Tue Sep 22 2026
Expect at least a chance of some showers and slight chance of thunderstorms in all zones today and tonight. Very low chances of wetting rains however but at least 10 percent all zones as well. Will see dry conditions Wednesday through Saturday with very warm conditions Thursday into Friday. Expect breezy conditions Friday as a cold front moves through with cooler conditions Saturday into Monday with the chance for much cooler conditions by Monday with a second system and a chance for some precipitation as well.
PIH WATCHES/WARNINGS/ADVISORIES
None.
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