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Gillette, Wyoming 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Gillette WY
National Weather Service Forecast for: Gillette WY
Issued by: National Weather Service Rapid City, SD
Updated: 2:50 am MST Nov 23, 2024
 
Overnight

Overnight: Mostly cloudy, with a steady temperature around 26. Wind chill values as low as 19. South wind 3 to 5 mph.
Mostly Cloudy

Saturday

Saturday: Mostly cloudy, with a high near 57. Wind chill values as low as 19 early. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.
Mostly Cloudy
and Breezy
Saturday
Night
Saturday Night: Mostly cloudy, with a low around 21. Southwest wind 8 to 15 mph becoming north after midnight. Winds could gust as high as 21 mph.
Mostly Cloudy

Sunday

Sunday: A 20 percent chance of snow.  Cloudy, with a high near 28. Wind chill values as low as 13. North wind 8 to 13 mph.
Slight Chance
Snow
Sunday
Night
Sunday Night: A 20 percent chance of snow before 11pm.  Partly cloudy, with a low around 12. North wind 5 to 7 mph becoming calm  after midnight.
Slight Chance
Snow then
Partly Cloudy
Monday

Monday: Sunny, with a high near 40. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 16 mph.
Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 19. Southwest wind around 6 mph.
Partly Cloudy

Tuesday

Tuesday: Mostly sunny, with a high near 44. Southwest wind around 6 mph.
Mostly Sunny

Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 20.
Partly Cloudy

Lo 26 °F Hi 57 °F Lo 21 °F Hi 28 °F Lo 12 °F Hi 40 °F Lo 19 °F Hi 44 °F Lo 20 °F

Hazardous Weather Outlook
 

Overnight
 
Mostly cloudy, with a steady temperature around 26. Wind chill values as low as 19. South wind 3 to 5 mph.
Saturday
 
Mostly cloudy, with a high near 57. Wind chill values as low as 19 early. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
 
Mostly cloudy, with a low around 21. Southwest wind 8 to 15 mph becoming north after midnight. Winds could gust as high as 21 mph.
Sunday
 
A 20 percent chance of snow. Cloudy, with a high near 28. Wind chill values as low as 13. North wind 8 to 13 mph.
Sunday Night
 
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 12. North wind 5 to 7 mph becoming calm after midnight.
Monday
 
Sunny, with a high near 40. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 16 mph.
Monday Night
 
Partly cloudy, with a low around 19. Southwest wind around 6 mph.
Tuesday
 
Mostly sunny, with a high near 44. Southwest wind around 6 mph.
Tuesday Night
 
Partly cloudy, with a low around 20.
Wednesday
 
Mostly sunny, with a high near 35.
Wednesday Night
 
Mostly cloudy, with a low around 14.
Thanksgiving Day
 
Partly sunny, with a high near 30.
Thursday Night
 
Partly cloudy, with a low around 14.
Friday
 
Mostly sunny, with a high near 34.

 

Forecast from NOAA-NWS for Gillette WY.

Weather Forecast Discussion
847
FXUS63 KUNR 230925
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
225 AM MST Sat Nov 23 2024

.KEY MESSAGES...

- Weak cold front this morning with areas of fog on the plains
  north and east of the Black Hills

- Elevated fire weather conditions today across northeast WY

- Cold front Sunday with gusty northwest winds and small chances (40%)
  of light snow/flurries for northeast Wyoming and Black Hills

- Below average temperatures through the Thanksgiving week with
  slight chance (<20%) of snow over the Black Hills Thursday

&&

.DISCUSSION...(Today Through Friday)
Issued at 138 AM MST Sat Nov 23 2024


09Z upper level analysis has broad ridging across the central
CONUS with deep trof entering the Pacific Northwest. Locally,
skies are partly cloudy most areas, with some low stratus and
possible patchy fog across northwestern SD. At the surface, weak
back-door cold front has sagged south across western South
Dakota, with light north to northeast winds behind it.

Ridge axis shifts east of the Northern Plains today as western
trof moves into the Pacific Northwest. Light northeast winds over
western SD shift to the southeast as Canadian high shifts east
and low pressure develops across central WY. Winds become breezy
over northwestern SD by mid day. Persistent easterly boundary
layer flow will keep temperatures cool across the SD plains, with
temps struggling into the 30s for highs. Areas of low stratus and
fog will persist through the morning hours. Just ahead of the
developing low over central WY, breezy south to southwest winds
will bring milder temperatures from northeast WY, to the Black
Hills, into far southwest SD - with highs in the 50s. Winds
eventually taper off this evening and overnight as relatively mild
westerly flow takes over. Lows will mainly be in the upper teens
and 20s under west to southwest upper flow.

On Sunday, an upper trof will cross the forecast area as main
upper low stays in Canada. Surface cold front will slide across
the area, bringing chances for some very light snow fall across
northeast WY, the Black Hills, and southwestern SD. Accumulations
look to be on the light side at this time, with total snowfall
remaining at an inch or less from Sunday afternoon through Sunday
evening. Northwesterly winds are expected to be 20 to 30 mph with
some gusts to 40 mph. Temperatures will be cooler on Sunday,
mainly in the upper 20s to upper 30s. Chilly temperatures are
expected Sunday night, with lows in the single digits and teens.

Persistent northwesterly upper flow is expected for the upcoming
holiday week, setting the stage for below average temperatures
persisting the whole week. A couple of weak weather disturbances
move through the area during the week, bringing very small chances
(<20%) of light snow/flurries. Colder than average temperatures
look to persist through next weekend.


&&

.AVIATION...(For the 06Z TAFS Through 06Z Saturday Night)
Issued At 1017 PM MST Fri Nov 22 2024

Areas of fog and low clouds will develop across the western South
Dakota plains tonight as a backdoor cool front settles into the
area, with a period of IFR (local LIFR) conds expected on portions
of the western SD plains, mainly in the far west including KRAP.
Conds will begin to improve later Sat morning. Breezy southerly
winds are expected Sat most areas, strongest on the northeast WY
Plains.

&&

.FIRE WEATHER...
Issued At 138 AM MST Sat Nov 23 2024

Elevated fire weather conditions will develop across northeast WY
late this morning through mid afternoon as southwest winds become
breezy and RH drops to near and below 20 percent. These elevated
conditions could possibly also develop over the higher Black
Hills and far southwest SD.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&

$$

DISCUSSION/KEY MESSAGES...15
AVIATION...JC
FIRE WEATHER...15
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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