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Havre, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Havre MT
National Weather Service Forecast for: Havre MT
Issued by: National Weather Service Great Falls, MT
Updated: 7:03 pm MDT Aug 14, 2025
 
Overnight

Overnight: A 20 percent chance of showers after 4am.  Partly cloudy, with a low around 55. East wind around 9 mph.
Slight Chance
Showers
Friday

Friday: Mostly sunny, with a high near 85. East wind 7 to 10 mph becoming west southwest in the afternoon.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 57. East wind 5 to 7 mph.
Partly Cloudy

Saturday

Saturday: Sunny, with a high near 90. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Sunny

Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Partly cloudy, with a low around 60. Southwest wind around 6 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 86. West northwest wind 3 to 6 mph.
Mostly Sunny

Sunday
Night
Sunday Night: Partly cloudy, with a low around 60. North northwest wind around 6 mph becoming south after midnight.
Partly Cloudy

Monday

Monday: Sunny, with a high near 88. South southwest wind around 6 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 62.
Mostly Clear

Lo 55 °F Hi 85 °F Lo 57 °F Hi 90 °F Lo 60 °F Hi 86 °F Lo 60 °F Hi 88 °F Lo 62 °F

 

Overnight
 
A 20 percent chance of showers after 4am. Partly cloudy, with a low around 55. East wind around 9 mph.
Friday
 
Mostly sunny, with a high near 85. East wind 7 to 10 mph becoming west southwest in the afternoon.
Friday Night
 
Partly cloudy, with a low around 57. East wind 5 to 7 mph.
Saturday
 
Sunny, with a high near 90. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
 
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 60. Southwest wind around 6 mph. Chance of precipitation is 20%.
Sunday
 
Mostly sunny, with a high near 86. West northwest wind 3 to 6 mph.
Sunday Night
 
Partly cloudy, with a low around 60. North northwest wind around 6 mph becoming south after midnight.
Monday
 
Sunny, with a high near 88. South southwest wind around 6 mph.
Monday Night
 
Mostly clear, with a low around 62.
Tuesday
 
Sunny, with a high near 92.
Tuesday Night
 
Mostly clear, with a low around 62.
Wednesday
 
Sunny, with a high near 88.
Wednesday Night
 
Mostly clear, with a low around 59.
Thursday
 
Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Havre MT.

Weather Forecast Discussion
330
FXUS65 KTFX 150504
AFDTFX

Area Forecast Discussion
National Weather Service Great Falls MT
1104 PM MDT Thu Aug 14 2025

Aviation Section Updated.

.KEY MESSAGES...

 - Widely scattered thunderstorms with gusty winds and little precipitation
   are expected across areas near the Idaho border through early
   this evening.

 - Seasonably warm temperatures are expected this weekend with
   daily thunderstorm chances returning later this weekend.

&&

.UPDATE...
/Issued 658 PM MDT Thu Aug 14 2025/

The main reason for the update this evening was to increase
mention of haze in the vicinity of the Cloudrest Fire, which
developed today in the Tobacco Root Mountains.

Otherwise a few lingering showers in the West Yellowstone area
will move off to the east and diminish over the next few hours.
Forecast soundings in northeastern Fergus county and vicinity do
show some elevated instability developing tonight, which high
resolution guidance does key in on as developing as a few showers
and thunderstorms. At this point any thunderstorm that form would
only be capable of small hail.

No changes were made to the forecast outside of the increased haze
mention. -AM

&&

.DISCUSSION...
/Issued 658 PM MDT Thu Aug 14 2025/

 - Meteorological Overview:

The Northern Rockies and MT remain beneath a moderate westerly flow
aloft in between troughing moving east across central Canada and
upper level ridging centered over the Southern US Plains. A cooler
airmass associated with surface high pressure extends from the
Canadian Prairies south across the MT plains, while a warmer and
drier airmass lingers across western and southwest MT. Lingering
instability across far SW MT, along with the stalled frontal
boundary and some trailing jet energy south of the Canadian trough
will focus some isolated to widely scattered thunderstorm
development through early this evening across mainly areas near the
ID border.

Mainly dry and seasonably warm conditions are expected across the
entire area on Friday as upper level ridging progresses east across
SW Canada while the larger scale ridge remains centered over the S-
central US. Late Saturday through early next week the upper flow
across the region becomes more southwesterly as the large scale US
ridge retrogrades westward toward the southern US Rockies while upper
troughing is reestablished near the west coast of Canada. A plume of
Pacific moisture works into the Northern Rockies by late Saturday,
bringing a chance for showers and thunderstorms  with additional
moisture and an embedded disturbance providing a more widespread
coverage of showers and thunderstorms on Sunday. Longer range model
ensembles support the southwesterly flow pattern remaining in place
through at least the first part of next week with most members
migrating the upper ridge further west toward the SW US but more
uncertainty in the eventual progression of the upper trough across
western Canada. This supports a continued risk of daily showers and
thunderstorms but leaves lower confidence in the coverage and
amount of moisture available next week. Hoenisch

 - Forecast Confidence & Scenarios:

Thunderstorms across far southwest MT through this evening will be
hi-based with very dry sub-cloud conditions. This and steering flow
around 30-40kts enhances the risk for strong winds with even weak
convection there. Further north, there is a small amount of Hi-
resolution model members that indicate the potential for a few
isolated showers and thunderstorms to develop across eastern
portions of central MT this evening and even linger through some of
the overnight period. While this is a low probability scenario there
may still be enough trailing upper level jet energy that would
support isolated overnight convection, so the potential cannot be
ruled out. Hoenisch

&&

.AVIATION...
15/06Z TAF Period

VFR conditions will prevail at all terminals during this TAF Period.
There is a 10 - 15% chance for showers and thunderstorms at the
KEKS, KWYS, KHVR, and KLWT terminals between 15/20Z and 16/00Z. Any
thunderstorm will produce lightning and gusty, erratic winds. There
will be gusty winds during the middle of this TAF Period at all
terminals except for the KLWT and KHVR terminals. There will be haze
from wildfires around the KBZN and KEKS terminals between 15/18Z and
16/01Z with only slantwise visibility reductions expected. -IG

Refer to weather.gov/zlc for more detailed regional aviation
weather and hazard information.

&&

.FIRE WEATHER...

Critical fire weather conditions through this evening remain limited
to southwest MT where lingering hot, dry and windy conditions persist
today along with the risk of thunderstorms with gusty/erratic winds
and little precipitation. Some improvement is expected through the
weekend with slight moderation in temperatures there along with less
windy conditions, however breezy afternoon winds and low humidity
will maintain an elevated fire weather risk. Hoenisch

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  53  87  57  91 /   0   0   0   0
CTB  50  79  54  82 /   0   0   0   0
HLN  55  89  57  90 /   0   0   0  10
BZN  51  90  53  91 /   0   0   0  10
WYS  41  82  42  81 /  20  10  10  20
DLN  47  87  50  87 /   0  10   0  20
HVR  53  85  57  91 /  20  10  10   0
LWT  52  83  56  87 /  10  10   0  10

&&

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

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