510
FNUS55 KGGW 170726
FWFGGW

Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
126 AM MDT Thu Sep 17 2026

.DISCUSSION...
East winds will increase today but relative humidity will not be
of concern despite warmer temperatures. A weather system will
move into Montana Friday with showers and thunderstorms moving
into northeast Montana Friday evening. Rainfall totals south of
the Missouri River in some locations could be over an inch by
Sunday. Warmer and drier conditions are expected to return early
next week.

BCF

MTZ134-172215-
Northern Valley and Northern Phillips Counties-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....70-75.
Min humidity........47-52 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly cloudy (50-60 percent).
Chance of thunder...0 percent.
Min temperature.....50-55.
Max humidity........95-100 percent.
20-foot winds.......East winds 10 to 20 mph decreasing to 5 to 10
                    mph early in the morning.
CWR (> 0.10 inch)...Less than 10 percent.

.FRIDAY...
Sky/weather.........Mostly cloudy (55-65 percent).
Chance of thunder...0 percent.
Max temperature.....74-79.
Min humidity........49-54 percent.
20-foot winds.......East winds 5 to 10 mph becoming south late in
                    the morning, then becoming northeast in the
                    afternoon.
CWR (> 0.10 inch)...Less than 10 percent.


.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy. A chance of showers. Lows in the lower
50s. Highs in the upper 60s. Northeast winds 5 to 15 mph.
.SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper
40s. Highs in the upper 60s. East winds 5 to 10 mph.
.MONDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s.
.WEDNESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s.

$$

MTZ135-172215-
The Little Rockies-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Sunny (15-25 percent) then becoming partly
                    cloudy (25-35 percent).
Chance of thunder...0 percent.
Max temperature.....76-81 valleys and 66-71 ridges.
Min humidity........36-41 percent valleys and 47-52 percent ridges.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent).
Chance of thunder...0 percent.
Min temperature.....52-57.
Max humidity........75-80 percent.
20-foot winds.......
    Lower elevation......East winds 5 to 15 mph decreasing to
                         variable less than 5 mph after midnight.
    Ridge............Southeast winds 5 to 15 mph becoming southwest
                     up to 5 mph early in the morning.
CWR (> 0.10 inch)...Less than 10 percent.

.FRIDAY...
Sky/weather.........Partly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....78-83 valleys and 68-73 ridges.
Min humidity........38-43 percent valleys and 48-53 percent ridges.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph becoming
                         upslope/upvalley 4-8 mph late in the
                         afternoon.
    Ridge............Northwest winds 5 to 10 mph becoming north
                     late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.


.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid
50s. Highs in the mid 60s. North winds 5 to 15 mph.
.SUNDAY...Mostly cloudy. A chance of showers. Lows around 50.
Highs in the upper 60s. Northeast winds 5 to 10 mph.
.MONDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southeast winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.

$$

MTZ136-172215-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Partly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........40-45 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 5-10 mph becoming 5 to 15
                         mph in the late morning and afternoon.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent).
Chance of thunder...0 percent.
Min temperature.....54-59.
Max humidity........86-91 percent.
20-foot winds.......
    Lower elevation......East winds 5 to 15 mph becoming variable
                         less than 5 mph early in the morning.
    Ridge............Southeast winds 5 to 15 mph becoming south 5
                     to 10 mph early in the morning.
CWR (> 0.10 inch)...Less than 10 percent.

.FRIDAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....76-81.
Min humidity........44-49 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph becoming
                         upslope/upvalley 4-8 mph in the afternoon.
    Ridge............South winds up to 5 mph becoming north 5 to 10
                     mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.


.Forecast days 3 through 7......
.SATURDAY...Showers likely and a slight chance of thunderstorms.
Lows in the mid 50s. Highs in the mid 60s. North winds 5 to
15 mph.
.SUNDAY...Showers likely and a slight chance of thunderstorms.
Lows in the lower 50s. Highs in the upper 60s. East winds 5 to
10 mph.
.MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid
70s. Southeast winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs around
80.

$$

MTZ137-172215-
Southern Petroleum and Southern Garfield Counties-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Mostly cloudy (50-60 percent).
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........41-46 percent.
20-foot winds.......
    Lower elevation......Southeast winds 10 to 20 mph.
    Ridge............Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent).
Chance of thunder...0 percent.
Min temperature.....53-58.
Max humidity........86-91 percent.
20-foot winds.......
    Lower elevation......Southeast winds 10 to 20 mph becoming
                         south 5 to 15 mph early in the morning.
    Ridge............Southeast winds 10 to 20 mph becoming south 5
                     to 15 mph early in the morning.
CWR (> 0.10 inch)...Less than 10 percent.

.FRIDAY...
Sky/weather.........Partly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....76-81.
Min humidity........45-50 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 5-10 mph becoming
                         upslope/upvalley 4-8 mph late in the
                         afternoon.
    Ridge............Southwest winds 5 to 10 mph becoming north 5
                     to 15 mph in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.


.Forecast days 3 through 7......
.SATURDAY...Showers and a slight chance of thunderstorms. Lows in
the mid 50s. Highs in the mid 60s. North winds 5 to 15 mph.
.SUNDAY...Showers likely and a slight chance of thunderstorms.
Lows around 50. Highs in the upper 60s. Northeast winds 5 to
15 mph.
.MONDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. Southeast winds 5 to 10 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
.WEDNESDAY...Mostly clear. Lows around 50. Highs around 80.

$$

MTZ120-172215-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Mostly cloudy (50-60 percent). Patchy dense fog
                    in the morning.
Chance of thunder...0 percent.
Max temperature.....69-74.
Min humidity........53-58 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent). A slight chance
                    of showers and thunderstorms after midnight.
Chance of thunder...20 percent.
Min temperature.....51-56.
Max humidity........95-100 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...10 percent.

.FRIDAY...
Sky/weather.........Mostly cloudy (50-60 percent). A slight chance
                    of showers.
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........56-61 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.


.Forecast days 3 through 7......
.SATURDAY...Showers likely and a slight chance of thunderstorms.
Lows in the lower 50s. Highs in the mid 60s. Northeast winds
10 to 15 mph.
.SUNDAY...Showers likely. Lows in the upper 40s. Highs in the
upper 60s. East winds 5 to 15 mph.
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southeast winds 5 to 15 mph.
.TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s.
.WEDNESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s.

$$

MTZ122-172215-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
126 AM MDT Thu Sep 17 2026

.TODAY...
Sky/weather.........Mostly cloudy (50-60 percent). Patchy dense fog
                    in the morning.
Chance of thunder...0 percent.
Max temperature.....74-79.
Min humidity........49-54 percent.
20-foot winds.......East winds 10 to 20 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent). A slight chance
                    of showers after midnight.
Chance of thunder...0 percent.
Min temperature.....53-58.
Max humidity........95-100 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.FRIDAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....77-82.
Min humidity........50-55 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.


.Forecast days 3 through 7......
.SATURDAY...Showers and a slight chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 60s. East winds 5 to 15 mph.
.SUNDAY...Showers likely and a slight chance of thunderstorms.
Lows in the upper 40s. Highs in the upper 60s. East winds 5 to
15 mph.
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs in the mid
70s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s.
.WEDNESDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 80s.

$$

weather.gov/glasgow