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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: 12:52 am MDT Apr 25, 2025
 
Overnight

Overnight: A 20 percent chance of showers.  Cloudy, with a steady temperature around 37. East wind around 6 mph.
Slight Chance
Showers

Friday

Friday: A 20 percent chance of showers.  Cloudy, with a high near 47. Breezy, with a southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Slight Chance
Showers and
Breezy
Friday
Night
Friday Night: Mostly cloudy, with a low around 38. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 34 mph.
Mostly Cloudy
and Breezy

Saturday

Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph.
Partly Sunny
and Breezy
then Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 44. Southwest wind 9 to 11 mph becoming southeast in the evening. Winds could gust as high as 21 mph.
Partly Cloudy

Sunday

Sunday: Partly sunny, with a high near 75. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Partly Sunny

Sunday
Night
Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 44. Southwest wind 11 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Chance
T-storms

Monday

Monday: Showers.  Mostly cloudy, with a high near 54. Breezy, with a north wind 14 to 24 mph, with gusts as high as 37 mph.
Showers and
Breezy

Monday
Night
Monday Night: A chance of rain before midnight.  Mostly cloudy, with a low around 34. Breezy.
Chance Rain
and Breezy
then Partly
Cloudy
Lo 37 °F Hi 47 °F Lo 38 °F Hi 73 °F Lo 44 °F Hi 75 °F Lo 44 °F Hi 54 °F Lo 34 °F

 

Overnight
 
A 20 percent chance of showers. Cloudy, with a steady temperature around 37. East wind around 6 mph.
Friday
 
A 20 percent chance of showers. Cloudy, with a high near 47. Breezy, with a southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
 
Mostly cloudy, with a low around 38. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 34 mph.
Saturday
 
Mostly cloudy, then gradually becoming sunny, with a high near 73. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph.
Saturday Night
 
Partly cloudy, with a low around 44. Southwest wind 9 to 11 mph becoming southeast in the evening. Winds could gust as high as 21 mph.
Sunday
 
Partly sunny, with a high near 75. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Sunday Night
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Southwest wind 11 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Monday
 
Showers. Mostly cloudy, with a high near 54. Breezy, with a north wind 14 to 24 mph, with gusts as high as 37 mph.
Monday Night
 
A chance of rain before midnight. Mostly cloudy, with a low around 34. Breezy.
Tuesday
 
Sunny, with a high near 63.
Tuesday Night
 
Partly cloudy, with a low around 41.
Wednesday
 
A chance of showers. Partly sunny, with a high near 60.
Wednesday Night
 
A slight chance of showers. Partly cloudy, with a low around 39.
Thursday
 
A slight chance of showers. Mostly sunny, with a high near 64.

 

Forecast from NOAA-NWS for Gillette WY.

Weather Forecast Discussion
597
FXUS63 KUNR 250500
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1100 PM MDT Thu Apr 24 2025

.KEY MESSAGES...

-Unsettled and wet through early next week

-Cool through Friday with much warmer temps by the weekend,
 seasonal next week.

&&

.DISCUSSION...(This Evening Through Thursday)
Issued at 118 PM MDT Thu Apr 24 2025

Mean troughing in the western CONUS will support unsettled
weather through the weekend a series of week impulses traverse the
region, with a deeper trough expected Sunday into Monday. Rain
and a few isolated TS are ongoing across the FA, with some high
elevation snow in the Black Hills. Main round of lift will shift
out of the area this evening with rain (and any high elevation
snow) tapering off to drizzle and flurries later tonight. Sfc
ridging combined with loss of deep layer ascent will support low
level lift with ongoing moist low level easterly flow continuing.
Clouds will remain most places through Friday, except for the far
NE where some clearing is expected. Shower chances will remain
across the SW third to half where some weak lift and instability
will be present with a drying trend through the day as drier air
advects into the region. The next upper trough will dig into the
western CONUS, with downstream pos theta-e adv. This will support
shower chances across the southern half Friday night, with
additional chances Sat as pos theta-e adv/WAA continues. Pressure
falls will increase across the region Sat, supporting gusty SE
winds, with potential adv level winds over NW SD. This system will
shift east Sunday with the warm sector spreading over the region.
This will support very warm temps with highs in the 70s and 80s,
warmest on the SD Plains. Prefrontal trough will support
thunderstorm chances in the late afternoon/evening with some
potential for severe weather as sufficient CAPE and bulk layer
shear will be in place. Wrap around rains (high elevation snow)
will then move into the region from the NW Sunday night as the
cold front shifts east. Rain will continue Monday in the northwest
half, with convection possible across south central SD where
lingering instability will be in place. Things dry out some the
remainder of next week with additional chances for showers later
in the week as more impulses traverse the flow, with seasonal
temps expected.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Friday Night)
Issued At 1058 PM MDT Thu Apr 24 2025

Widespread IFR conditions and transient LIFR conditions will
continue tonight and into Friday morning in rain/fog/low clouds.
Conditions will improve somewhat Friday afternoon, especially on
the western SD plains; however, IFR conditions could linger across
the BH/SW SD/NE WY through Friday night.

&&

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

$$

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






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