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Sidney, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 6 Miles ESE Sidney MT
National Weather Service Forecast for: 6 Miles ESE Sidney MT
Issued by: National Weather Service Bismarck, ND
Updated: 4:50 am CDT Jun 6, 2025
 
Today

Today: Mostly sunny, with a high near 78. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Mostly Sunny

Tonight

Tonight: Partly cloudy, with a low around 56. Southwest wind around 11 mph, with gusts as high as 18 mph.
Partly Cloudy

Saturday

Saturday: A 40 percent chance of showers, mainly after 1pm.  Partly sunny, with a high near 74. Breezy, with a southwest wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.
Chance
Showers and
Breezy
Saturday
Night
Saturday Night: Mostly clear, with a low around 50. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph.
Mostly Clear
and Breezy
then Mostly
Clear
Sunday

Sunday: Sunny, with a high near 70. Windy, with a northwest wind 18 to 28 mph, with gusts as high as 39 mph.
Sunny and
Windy

Sunday
Night
Sunday Night: Mostly clear, with a low around 46. Breezy, with a northwest wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 36 mph.
Mostly Clear
and Breezy
then Mostly
Clear
Monday

Monday: Sunny, with a high near 75. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Sunny

Monday
Night
Monday Night: Clear, with a low around 50. North wind 6 to 8 mph becoming south after midnight.
Clear

Tuesday

Tuesday: Sunny, with a high near 88. South wind 7 to 11 mph, with gusts as high as 18 mph.
Sunny

Hi 78 °F Lo 56 °F Hi 74 °F Lo 50 °F Hi 70 °F Lo 46 °F Hi 75 °F Lo 50 °F Hi 88 °F

 

Today
 
Mostly sunny, with a high near 78. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tonight
 
Partly cloudy, with a low around 56. Southwest wind around 11 mph, with gusts as high as 18 mph.
Saturday
 
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 74. Breezy, with a southwest wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.
Saturday Night
 
Mostly clear, with a low around 50. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph.
Sunday
 
Sunny, with a high near 70. Windy, with a northwest wind 18 to 28 mph, with gusts as high as 39 mph.
Sunday Night
 
Mostly clear, with a low around 46. Breezy, with a northwest wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 36 mph.
Monday
 
Sunny, with a high near 75. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Monday Night
 
Clear, with a low around 50. North wind 6 to 8 mph becoming south after midnight.
Tuesday
 
Sunny, with a high near 88. South wind 7 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
 
Partly cloudy, with a low around 57. Southeast wind around 11 mph.
Wednesday
 
A chance of showers. Partly sunny, with a high near 84. East wind 10 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. East wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday
 
A chance of showers. Mostly cloudy, with a high near 73. Northeast wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

 

Forecast from NOAA-NWS for 6 Miles ESE Sidney MT.

Weather Forecast Discussion
175
FXUS65 KGGW 060755
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
155 AM MDT Fri Jun 6 2025

.DISCUSSION...

KEY MESSAGES:

- Warm and dry weather is expected today.

- Gusty NW winds are expected this weekend with low RH at times.

- A weather pattern change next week will result in more favorable
  conditions for thunderstorms, beginning on Tuesday evening.


WEATHER PATTERN OVERVIEW:

A shortwave ridge in NW flow aloft will bring dry weather with
warm temperatures today.

A cold front Saturday morning will bring chances for showers and
thunderstorms mainly in the north in the morning that could spread
to most of the forecast area during the afternoon. Low
precipitation amounts are expected with any precipitation that
occurs on Saturday. Gusty NW winds will develop behind the cold
front Saturday morning that will continue through the afternoon
before diminishing somewhat Saturday night. A Lake Wind Advisory
is expected for Fort Peck Lake on Saturday. Low RH between 20 and
30% is expected Saturday afternoon which could bring critical fire
weather conditions especially north of the Missouri River and
west of MT 13 where a very dry spring has limited green up. Will
issue a Fire Weather Watch across the north for Saturday.

Tight surface gradient will combine with a strong NNW flow aloft
on Sunday to bring gusty NW winds with low RH. Critical fire
weather conditions are possible again and a Lake Wind Advisory is
expected for Fort Peck Lake.

Upper ridge moves into the area on Monday with warmer temperatures
that will peak on Tuesday with highs near 90.

Tuesday evening and beyond, region-wide conditions set up for
organized summertime thunderstorms, with higher humidity from the
south/southeast and troughing/SW flow moving in from the PAC NW.

FORECAST CONFIDENCE & DEVIATIONS:

Confidence is high with the wind forecast this weekend. Confidence
is medium with the potential for critical fire weather conditions over
the weekend. Confidence is low in most areas and medium northeast
on the chances for showers and thunderstorms on Saturday.

Lowered min RH somewhat on Saturday with blending the HREF in
with the NBM. Increased the thunderstorm possibility in the NE on
Saturday as the models have a somewhat unstable atmosphere.


&&

.AVIATION...

UPDATED: 0800Z, Friday morning, June 6th

FLIGHT CONDITION: VFR

DISCUSSION:  Mostly clear skies are expected this morning with
some daytime cumulus and high clouds expected this afternoon. Mid
level clouds are expected tonight with a cold front around 12z
Saturday.

WINDS: South to SE 5 to 10 knots this morning veering SW 10
to 15 knots this afternoon and diminishing to 5 to 10 knots this
evening. Winds will become NW 10 to 20 knots after 12z Saturday
with a cold front.


&&

.FIRE WEATHER...
Gusty NW winds behind a cold front will combine with low RH on
Saturday to create the possibility for critical fire weather
mainly in zones 120 and 134. Green up has been limited over the
western half of zone 120 and most of zone 134 with a dry spring.
There is a chance of showers and thunderstorms on Saturday but the
chance of wetting rain will be less than 10 percent. A Fire
Weather Watch is in effect for zones 120 and 134 which includes
most of NE Montana north of the Missouri River for Saturday
afternoon and evening.

Low RH and gusty NW winds are expected again on Sunday with the
possibility of critical fire weather conditions especially north
of the Missouri River.

&&

.GGW WATCHES/WARNINGS/ADVISORIES...
Fire Weather Watch from Saturday afternoon through Saturday
evening for Fort Peck Reservation and Daniels/Roosevelt/Sheridan
Counties-Northern Valley and Northern Phillips Counties.

&&

$$

weather.gov/glasgow
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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