Spot Forecast
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
083
FNUS75 KGGW 300252
FWSGGW
Spot Forecast for Duval Creek...BLM LED
National Weather Service Glasgow MT
852 PM MDT Fri May 29 2026
Forecast is based on forecast start time of 2100 MDT on May 29.
If conditions become unrepresentative...contact the National Weather
Service at (406) 228-9622.
.DISCUSSION...
A trough pattern to the west will cause cooler temperatures and
increasing chances for showers and thunderstorms through thr
weekend. This evening, look for northwest winds around 10 mph
overall, though gusty and shifting winds are possible with
thunderstorms. Some of the storms this evening have been producing
wind gusts in excess of 50 mph. Periods of showers are expected
Saturday morning with thunderstorms becoming more numerous
Saturday afternoon and evening. Look for additional showers and
thunderstorms on Sunday. Widespread wetting rains are expected
with the storms, and an inch of total rainfall is possible through
the weekend.
.REST OF TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
showers and slight chance of thunderstorms.
CWR.................18 percent increasing to 28 percent overnight.
Chance of thunder...19 percent.
Min temperature.....Around 59.
Max humidity........66 percent.
Wind (20 ft)........Northwest winds around 10 mph
Gusty and erratic winds expected near thunderstorms.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 12
to 16 mph.
TIME (MDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........80 75 71 76 76 82 81 84 72
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW RW RW RW RW RW RW RW RW
Tstm cov........SCH SCH SCH SCH SCH SCH SCH SCH SCH
CWR.............20 20 20 30 30 30 30 30 30
Chc of thdr (%).20 20 20 20 20 20 20 20 20
Temp............76 73 72 70 68 67 66 64 63
RH..............40 43 49 53 57 60 61 63 65
20 FT wind dir..N NW W NW NW W NW NW W
20 FT wind spd..6 6 5 4 5 5 6 6 6
20 FT wind gust.10 10 8 7 8 10 10 10 10
Mix hgt (kft)...0.5 0.7 0.5 0.5 0.7 0.6 1.0 1.0 0.8
Transp wind dir.N W NW N N NW NW NW W
Transp wind spd.16 15 14 13 12 13 13 13 13
.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Showers likely
and slight chance of thunderstorms in the
morning, then showers and chance of
thunderstorms in the afternoon.
CWR.................16 percent increasing to 67 percent in the
afternoon.
Chance of thunder...43 percent.
Max temperature.....Around 79.
Min humidity........44 percent.
Wind (20 ft)........Northwest winds 7 to 12 mph with gusts to
around 16 mph shifting to the north around 8
mph with gusts to around 16 mph late in the afternoon.
Gusty and erratic winds expected near thunderstorms in
the afternoon.
Mixing height.......3300 ft AGL.
Transport winds.....North 13 to 21 mph.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........67 76 71 70 66 65 74 75 72 82 88 90
Weather cov.....CHC CHC LKY LKY CHC CHC LKY CHC CHC LKY DEF DEF
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC
CWR.............20 20 20 20 20 20 70 70 70 70 70 70
Chc of thdr (%).20 20 20 20 20 20 30 30 30 40 40 40
Temp............63 61 65 67 72 74 75 76 78 76 76 75
RH..............66 66 62 59 55 49 47 44 44 44 45 48
20 FT wind dir..NW NW NW NW NW N N N N N N NW
20 FT wind spd..6 6 6 7 7 8 8 8 8 8 8 8
20 FT wind gust.10 11 11 13 14 14 16 16 16 16 16 16
Mix hgt (kft)...0.5 1.3 1.6 2.3 2.7 3.0 3.1 2.7 3.3 3.1 2.4 2.4
Transp wind dir.NW N N N N N N N N N N N
Transp wind spd.14 15 15 13 15 16 16 16 14 18 21 18
.SATURDAY NIGHT...
Sky/weather.........Cloudy (90-100 percent). Rain showers and
chance of thunderstorms early in the evening,
then rain showers likely and slight chance of
thunderstorms late in the evening. Rain showers
overnight.
CWR.................93 percent decreasing to 74 percent overnight.
Chance of thunder...37 percent.
Min temperature.....Around 54.
Max humidity........81 percent.
Wind (20 ft)........Northwest winds 6 to 10 mph. Gusty and erratic
winds expected near thunderstorms in the
evening.
Mixing height.......1200 ft AGL.
Transport winds.....Northwest 13 to 17 mph shifting to the west 18
to 20 mph after 3 am.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........98 98 98 96 96 96 95 95 95 97 97 97
Weather cov.....DEF DEF DEF LKY LKY LKY DEF DEF DEF DEF DEF DEF
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........CHC CHC CHC SCH SCH SCH
CWR.............90 90 90 90 90 90 70 70 70 70 70 70
Chc of thdr (%).40 40 40 20 20 20 10 10 10 10 10 10
Temp............72 71 70 67 66 66 65 64 63 63 60 59
RH..............52 56 60 67 67 71 74 74 74 73 74 76
20 FT wind dir..NW NW NW NW NW NW W W W W W W
20 FT wind spd..7 7 7 6 6 6 7 7 7 8 8 8
20 FT wind gust.14 14 14 12 12 12 12 12 12 14 14 14
Mix hgt (kft)...1.4 1.6 1.4 1.3 1.2 1.3 1.3 1.3 1.3 1.3 1.4 1.3
Transp wind dir.N NW NW NW NW NW NW NW NW W W W
Transp wind spd.17 16 15 15 16 15 15 13 16 20 18 18
.SUNDAY...
Sky/weather.........Cloudy (90-100 percent). Rain showers through
the day. Slight chance of thunderstorms in the
afternoon.
CWR.................57 percent decreasing to 35 percent in the
afternoon.
Chance of thunder...16 percent.
Max temperature.....Around 64.
Min humidity........62 percent.
Wind (20 ft)........West winds 11 to 17 mph. Gusts up to 26 mph
increasing to 35 mph in the afternoon. Gusty
and erratic winds expected near thunderstorms
in the afternoon.
Mixing height.......3400 ft AGL.
Transport winds.....West 20 to 28 mph increasing to 30 to 35 mph
late in the morning.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........100 100 100 90 90 90 86 86 86 89 89 89
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............60 60 60 60 60 60 40 40 40 40 40 40
Chc of thdr (%).10 10 10 10 10 10 20 20 20 20 20 20
Temp............59 55 56 58 59 61 62 62 62 62 61 59
RH..............77 81 82 81 78 73 69 66 63 62 63 65
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..11 11 11 13 13 13 16 16 16 17 17 17
20 FT wind gust.18 18 18 21 21 21 26 26 26 28 28 28
Mix hgt (kft)...1.5 2.0 2.1 2.1 2.4 2.7 3.0 3.1 3.2 3.3 3.4 3.4
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.22 20 22 25 28 30 31 32 33 33 35 35
$$
Forecaster...MALIAWCO
Requested by...Lewistown Dispatch
Type of request...WILDFIRE
.TAG 2614672.0/GGW
.DELDT 05/29/26
.FormatterVersion 2.0.0
.EMAIL MTLEC@firenet.gov