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St. Anthony, Idaho 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for St. Anthony ID
National Weather Service Forecast for: St. Anthony ID
Issued by: National Weather Service Pocatello, ID
Updated: 5:31 pm MDT Apr 11, 2025
 
Tonight

Tonight: A slight chance of showers before 10pm, then a slight chance of showers after 5am.  Mostly cloudy, with a low around 46. Southwest wind 6 to 13 mph becoming east northeast after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 20%.
Slight Chance
Showers

Saturday

Saturday: A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm.  Patchy blowing dust after noon. Mostly cloudy, with a high near 63. Breezy, with an east northeast wind 6 to 11 mph becoming west southwest 18 to 28 mph in the morning. Winds could gust as high as 39 mph.  Chance of precipitation is 50%.
Chance
Showers and
Breezy

Saturday
Night
Saturday Night: Patchy blowing dust before 9pm. Mostly clear, with a low around 28. Breezy, with a west southwest wind 18 to 23 mph becoming north 8 to 13 mph in the evening. Winds could gust as high as 36 mph.
Patchy
Blowing Dust
and Breezy
then Mostly
Clear
Sunday

Sunday: Sunny, with a high near 52. North wind around 7 mph.
Sunny


Sunday
Night
Sunday Night: Mostly clear, with a low around 26. West northwest wind 6 to 8 mph becoming east northeast in the evening.
Mostly Clear


Monday

Monday: Sunny, with a high near 59.
Sunny


Monday
Night
Monday Night: Mostly clear, with a low around 32.
Mostly Clear


Tuesday

Tuesday: Sunny, with a high near 68.
Sunny


Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 37.
Partly Cloudy


Lo 46 °F Hi 63 °F Lo 28 °F Hi 52 °F Lo 26 °F Hi 59 °F Lo 32 °F Hi 68 °F Lo 37 °F

Wind Advisory
 

Tonight
 
A slight chance of showers before 10pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 46. Southwest wind 6 to 13 mph becoming east northeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Saturday
 
A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm. Patchy blowing dust after noon. Mostly cloudy, with a high near 63. Breezy, with an east northeast wind 6 to 11 mph becoming west southwest 18 to 28 mph in the morning. Winds could gust as high as 39 mph. Chance of precipitation is 50%.
Saturday Night
 
Patchy blowing dust before 9pm. Mostly clear, with a low around 28. Breezy, with a west southwest wind 18 to 23 mph becoming north 8 to 13 mph in the evening. Winds could gust as high as 36 mph.
Sunday
 
Sunny, with a high near 52. North wind around 7 mph.
Sunday Night
 
Mostly clear, with a low around 26. West northwest wind 6 to 8 mph becoming east northeast in the evening.
Monday
 
Sunny, with a high near 59.
Monday Night
 
Mostly clear, with a low around 32.
Tuesday
 
Sunny, with a high near 68.
Tuesday Night
 
Partly cloudy, with a low around 37.
Wednesday
 
Mostly sunny, with a high near 68.
Wednesday Night
 
A 20 percent chance of showers. Partly cloudy, with a low around 36.
Thursday
 
Sunny, with a high near 66.
Thursday Night
 
Mostly clear, with a low around 38.
Friday
 
Sunny, with a high near 71.

 

Forecast from NOAA-NWS for St. Anthony ID.

Weather Forecast Discussion
141
FXUS65 KPIH 112322
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
522 PM MDT Fri Apr 11 2025

.KEY MESSAGES...

- Rain/mountain snow showers remain possible this afternoon through
Saturday. An isolated thunderstorm is not out of the question.

- Very windy Saturday through the Snake River Plain and at higher
elevations, with gust potential exceeding 50 mph. Blowing dust
possible.

- High pressure returns early next week with dry warming trend.

&&

.SHORT TERM /THROUGH SATURDAY NIGHT/...
Issued at 215 PM MDT Fri Apr 11 2025

Deep trough in Eastern Pacific progressing toward coast, with
vigorous leading shortwave shifting inland through the PacNW per
water vapor satellite imagery. Very warm temperatures and
breezy winds in place across much of East Idaho today. Best
convective potential remains across the Central Mountains and
along the Divide/Yellowstone regions. High-res models struggling
with placement and timing of the showers, but nearly all of
them keep QPF amounts very light. As in the last system that
moved through, surface dewpoint depressions are quite steep, so
expect mostly virga until the lower levels can cool/moisten up
overnight behind the front. Still a general lack of instability,
but can`t completely rule out a thunderstorm or two if a
stronger shower can manifest. Saturday still looking quite windy
especially across the Snake Plain, with tight pressure gradient
in place along with gusty 700mb flow. Latest NAM has shifted
stronger winds to the south end of the Snake Plain, but high-res
runs still support stronger winds across the north end of the
Snake Plain. Blended NBM with previous forecast and 75th
percentile, especially in light of gustier winds occurring
today. Also kept the BLDU mention across most of the Snake Plain
for the afternoon. Have issued a Wind Advisory for the entirety
of the Snake Plain. Do not believe a High Wind Warning will be
necessary, as the probability of gusts greater than 45 mph
begins to drop off significantly. Showers continue mainly
Central Mountains, Divide, and along the Wyoming border. Again,
instability is lacking but can`t rule out a thunderstorms this
time of year. Temperatures drop off behind the front, with
temperatures Saturday some 10-15 degrees cooler than today and
widespread temperatures near or below freezing for lower
elevations Sunday night.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
Issued at 215 PM MDT Fri Apr 11 2025

We move into early next week on the dry side, with another
warmup headed our direction. We still can`t rule out a shower or
2 around Island Park Sunday, but trends are drier each time we
run the forecast. BY Tuesday, even with the potential for some
clouds arriving, we will be back into the 60s and 70s. We will
see the next storm splitting as it crosses the western states,
forming a closed low to our southwest. That leaves us with
slightly cooler and breezy midweek. A few showers are still
possible but the chance isn`t high and the amount of
precipitation is basically negligible at the moment. We are
expecting high pressure to build ahead of that closed low, which
could impact us NEXT weekend. This will push highs well into
the 70s next Friday. This pattern is strongly supported by about
65% of the clusters. Around 25% shows the ridge but much
weaker, and the 4th scenario has a slow moving split storm
across our area (around 10% of the clusters). The Blend of
Models is going with the warmer/drier pattern for today.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 522 PM MDT Fri Apr 11 2025

Scattered to broken mid and high level clouds will
continue to increase, although at the moment we are struggling with
higher resolutions models actually producing showers vs the current
virga situation out there. Gusty winds this evening will diminish a
bit overnight before ramping back up on Saturday. The chance of
actual showers will also increase tonight and Saturday.
SUN and DIJ currently have VCSH closer to sunrise, so we left that
in place. Still opted to NOT add it to PIH, IDA, and BYI, but it is
a non-zero chance for a stray shower or two to work up the Snake
River Plain. Will continue to monitor trends with more data this
evening. Wind gusts on Saturday will be much stronger than today.
Gusts at BYI, PIH and IDA by afternoon will be 30-40kts. For SUN, it
looks like we WILL NOT see the usual southerly wind switch and keep
winds in the afternoon breezy and out of a westerly direction. At
DIJ, showers and a few thunderstorms are possible and will persist
into the afternoon, so added some VCTS to the TAF there after 19Z
...with gusts outside of showers/storms at 25-30kts.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Wind Advisory from noon to 8 PM MDT Saturday for IDZ051>055.

&&

$$

SHORT TERM...DMH
LONG TERM...Keyes
AVIATION...Keyes/AMM
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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