Dillon, Montana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

349
FXUS65 KTFX 131721
AFDTFX

Area Forecast Discussion
National Weather Service Great Falls MT
1021 AM MST Tue Jan 13 2026

Aviation Section Updated.

.KEY MESSAGES...

- Not quite as windy today, but still mild.

- Mild temperatures continue on Wednesday, before a bit cooler air
  returns starting on Thursday.

- Little to no precipitation expected over the next week or so.

&&

.UPDATE...
/Issued 721 AM MST Tue Jan 13 2026/

Morning update has been published, with the only change being to
cancel the High Wind Warning for the East Glacier Park Region,
Northern High Plains, Eastern Glacier, Western Toole, and Central
Pondera, and Southern High Plains as wind speeds/gusts have fallen
below criteria. Otherwise the remainder of the forecast remains on
track, with another breezy and gusty over the plains and well
above normal temperatures across all lower elevations. - Moldan

&&

.DISCUSSION...
/Issued 721 AM MST Tue Jan 13 2026/

 - Meteorological Overview:
A significant chinook arch is residing over Montana this morning,
as a strong upper level ridge builds over the entire Pacific
Northwest. This ridge is allowing for mild January air to move
over the CWA, with near record highs continuing today and again on
Wednesday.

The flow aloft is currently out of the northwest over Central MT.
This has resulted in some radar returns, however any precipitation
that is hitting the ground is likely mostly rain and very light.
Overall, any precipitation should diminish by early this
afternoon.

Gusty winds do continue to affect portions of North Central MT
this morning. There is a small chance a few gusts could reach
warning criteria before 8 AM along the Rocky Mountain Front to as
far east as the Cut Bank area. Thus the high wind warning will
continue for now, but could be cancelled early.

After today, really no precipitation is expected until the middle
of next week. There was the potential for some precipitation on
Thursday per the GFS model, but overall that probability has been
decreasing daily, and thus the dry forecast.

 - Forecast Confidence & Scenarios:
Overall, the main weather highlight for the next few days will be
the potential for near record high temperatures today and again on
Wednesday. There continues to be about an 80 percent for record
high temperatures today and a 90 percent chance on Wednesday.
Cooler air returns on Thursday, ending that potential for record
high temperatures for most areas to continue. Brusda

&&

.AVIATION...
13/18Z TAF Period

A moderate northwesterly flow aloft with embedded mid-high level
moisture will continue across the region through the TAF period.
While VFR conditions prevail at all terminals, enough mid-level
moisture is present through early this afternoon across portions of
central and southwest MT for broken cloud ceilings near mountain
tops with a few isolated/light showers possible near KLWT and KBZN.
Mid-level clouds thin later this afternoon through tonight. Gusty
Surface winds affect some north-central/central MT terminals early
this afternoon with winds diminishing this evening. Flow aloft
across the Rockies will continue to support some areas of mountain
wave turbulence. Hoenisch


&&

.FIRE WEATHER...
Main concern today will be grassy areas over North Central MT.
Even though winds overall will not be quite as strong as
yesterday, it will still be windy at times. The windy conditions
combined with humidity in the 20s and 30s could make any fire
starts in grassy a bit difficult to contain. Humidity will remain
low through Wednesday, before a bit cooler air and higher humidity
return on Thursday. Brusda

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  58  38  62  31 /  20   0   0   0
CTB  54  37  63  31 /  10   0   0   0
HLN  54  32  52  27 /  10   0   0   0
BZN  51  29  52  22 /  10   0   0   0
WYS  36  10  38   4 /  10   0   0   0
DLN  51  28  51  26 /   0   0   0   0
HVR  53  33  53  27 /  10   0   0   0
LWT  53  35  59  31 /  40   0   0   0

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$
http://www.weather.gov/greatfalls