Halfmoon Lake, MT Weather Forecast & Current Conditions

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Halfmoon Lake, MT Weather Maps

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Halfmoon Lake Weather Map
UTC Time: 9/25/2026, 12:24
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Halfmoon Lake, MT Regional Weather

Expires:202609251300;;030966
ASUS45 KTFX 251210
RWRMT 
Montana Regional Weather Roundup
National Weather Service Great Falls MT
600 AM MDT FRI SEP 25 2026

NOTE: "FAIR" indicates few or no clouds below 12,000 feet with no
significant weather and/or obstructions to visibility.


MTZ001>007-043-251300-
West of the divide
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
Kalispell      PTCLDY    43  42  97 CALM      29.77F                  
Missoula       PTCLDY    49  45  86 CALM      29.83F                  
Butte          CLEAR     43  36  76 VRB3      30.05S                  
Hamilton       MOCLDY    52  45  76 CALM      29.86S                  
Mullan Pass    CLOUDY    59  33  37 VRB3      29.88S                  
Plains         MOSUNNY   46  46 100 CALM      29.74F                  
Ronan          SUNNY     46  46 100 NE5       29.76F                  
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Halfmoon Lake, MT

Today
Rain
65°/ 35° 18°/ 2°
70%
Saturday
Mostly Cloudy
45°/ 30° 7°/ -1°
0%
Sunday
Mostly Cloudy
50°/ 35° 10°/ 2°
0%
Monday
Sunny
50°/ 38° 10°/ 3°
0%
Tuesday
Rain
48°/ 40° 9°/ 4°
40%
Wednesday
Rain
50°/ 38° 10°/ 3°
40%
Thursday
Snow
50°10°
20%

Day: Partly cloudy. A 40 percent chance of areas of rain late in the afternoon. Highs in the mid 60s to lower 70s. Southwest winds 15 to 20 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon.

Night: Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the mid 30s to lower 40s. Windy with southwest winds 20 to 30 mph with gusts to around 45 mph.

Kalispell, MT

Today
Rain
68°/ 38° 20°/ 3°
50%
Saturday
Cloudy
55°/ 30° 13°/ -1°
0%
Sunday
Cloudy
58°/ 35° 14°/ 2°
0%
Monday
Sunny
58°/ 35° 14°/ 2°
0%
Tuesday
Cloudy
58°/ 38° 14°/ 3°
20%
Wednesday
Rain
58°/ 38° 14°/ 3°
20%
Thursday
Cloudy
58°14°
0%

Day: Mostly cloudy. A 50 percent chance of areas of rain in the afternoon. Highs in the upper 60s to mid 70s. Southwest winds 15 to 25 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of rain. Lows in the upper 30s to mid 40s. Southwest winds 15 to 25 mph.

Libby, MT

Today
Rain
65°/ 35° 18°/ 2°
70%
Saturday
Rain
55°/ 30° 13°/ -1°
20%
Sunday
Cloudy
60°/ 30° 16°/ -1°
0%
Monday
Cloudy
60°/ 35° 16°/ 2°
0%
Tuesday
Mostly Cloudy
58°/ 38° 14°/ 3°
30%
Wednesday
Rain
58°/ 38° 14°/ 3°
30%
Thursday
Rain
58°14°
20%

Day: Areas of rain early in the afternoon. Rain likely late in the afternoon. Chance of rain 70 percent. Highs in the mid 60s to lower 70s. Southeast winds to 15 mph with gusts to around 30 mph shifting to the southwest 15 to 20 mph in the afternoon.

Night: Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the mid 30s to lower 40s. South winds 15 to 20 mph with gusts to around 30 mph.

East Glacier Park, MT

Today
Sunny
62°/ 34° 17°/ 1°
50%
Saturday
Snow
39°/ 32° 4°/ 0°
20%
Sunday
Partly Cloudy
46°/ 35° 8°/ 2°
0%
Monday
Sunny
46°/ 36° 8°/ 2°
0%
Tuesday
Rain
44°/ 38° 7°/ 3°
40%
Wednesday
Snow
44°/ 38° 7°/ 3°
40%
Thursday
Snow
45°7°
20%

Day: Breezy. Mostly sunny. Highs 62 to 74. South winds 5 to 15 mph with gusts to around 30 mph increasing to southwest 15 to 25 mph with gusts to around 55 mph in the afternoon.

Night: Windy, colder. Mostly cloudy. Chance of thunderstorms and slight chance of snow showers in the evening, then chance of rain and snow after midnight. Lows 34 to 40. Southwest winds 25 to 35 mph with gusts to around 75 mph. Chance of precipitation 50 percent.

Browning, MT

Today
Sunny
78°/ 42° 26°/ 6°
0%
Saturday
Sunny
52°/ 32° 11°/ 0°
0%
Sunday
Partly Cloudy
58°/ 38° 14°/ 3°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tue Night
Rain
42°6°
20%
Wednesday
Rain
58°/ 40° 14°/ 4°
20%
Thursday
Partly Cloudy
58°14°
0%

Day: Breezy. Mostly sunny. Highs in the upper 70s. South winds 5 to 10 mph with gusts to around 30 mph increasing to southwest 15 to 25 mph with gusts to around 50 mph in the afternoon.

Night: Very windy. Partly cloudy. Lows in the lower 40s. West winds 25 to 40 mph with gusts to around 60 mph.

Cut Bank, MT

Today
Sunny
82°/ 45° 28°/ 7°
20%
Saturday
Sunny
58°/ 35° 14°/ 2°
0%
Sunday
Partly Cloudy
58°/ 38° 14°/ 3°
0%
Monday
Sunny
65°/ 42° 18°/ 6°
0%
Tue Night
Mostly Cloudy
42°6°
0%
Wed-Wed Night
Cloudy
62°17°
0%
Thursday
Partly Cloudy
62°17°
0%

Day: Breezy. Mostly sunny. Highs in the lower 80s. Southeast winds 10 to 15 mph with gusts to around 30 mph shifting to the southwest 15 to 25 mph with gusts to around 50 mph in the afternoon.

Night: Very windy. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. West winds 30 to 40 mph shifting to the southwest 20 to 35 mph after midnight. Gusts up to 60 mph.

East Missoula, MT

Today
Rain
70°/ 30° 21°/ -1°
40%
Saturday
Cloudy
50°/ 28° 10°/ -2°
0%
Sunday
Mostly Cloudy
58°/ 30° 14°/ -1°
0%
Monday
Sunny
58°/ 42° 14°/ 6°
0%
Tuesday
Cloudy
55°/ 35° 13°/ 2°
20%
Wednesday
Rain
58°/ 35° 14°/ 2°
20%
Thursday
Cloudy
58°14°
0%

Day: Partly cloudy. A 20 percent chance of rain late in the afternoon. Highs in the 70s. Southwest winds 15 to 20 mph with gusts to around 40 mph in the afternoon.

Night: Mostly cloudy with a 40 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the 30s. West winds 15 to 20 mph with gusts to around 40 mph.

Noxon, MT

Today
Rain
65°/ 35° 18°/ 2°
70%
Saturday
Cloudy
62°/ 30° 17°/ -1°
0%
Sunday
Mostly Cloudy
60°/ 35° 16°/ 2°
0%
Monday
Sunny
60°/ 35° 16°/ 2°
0%
Tuesday
Mostly Cloudy
55°/ 38° 13°/ 3°
20%
Wednesday
Rain
58°/ 38° 14°/ 3°
20%
Thursday
Cloudy
60°16°
0%

Day: Areas of rain early in the afternoon. Rain likely late in the afternoon. Chance of rain 70 percent. Highs in the mid 60s to lower 70s. Southwest winds 15 to 25 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon.

Night: Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s to lower 40s. West winds 15 to 20 mph with gusts to around 40 mph.

Bynum, MT

Today
Sunny
82°/ 45° 28°/ 7°
0%
Saturday
Sunny
58°/ 35° 14°/ 2°
0%
Sunday
Partly Cloudy
62°/ 42° 17°/ 6°
0%
Monday
Sunny
65°/ 42° 18°/ 6°
0%
Tue Night
Mostly Cloudy
45°7°
0%
Wednesday
Cloudy
62°17°
0%
Thursday
Cloudy
62°17°
0%

Day: Breezy. Mostly sunny. Highs in the lower 80s. South winds 5 to 15 mph with gusts to around 35 mph increasing to southwest 15 to 25 mph with gusts to around 45 mph in the afternoon.

Night: Windy. Mostly clear. Lows in the mid 40s. West winds 15 to 30 mph with gusts to around 65 mph.

Brady, MT

Today
Sunny
85°/ 45° 29°/ 7°
20%
Saturday
Sunny
62°/ 35° 17°/ 2°
0%
Sunday
Partly Cloudy
62°/ 38° 17°/ 3°
0%
Monday
Sunny
68°/ 42° 20°/ 6°
0%
Tue Night
Mostly Cloudy
45°7°
0%
Wed-Wed Night
Cloudy
65°18°
0%
Thursday
Rain
65°18°
20%

Day: Breezy, sunny. Highs in the mid 80s. South winds 10 to 15 mph shifting to the southwest 15 to 25 mph in the afternoon.

Night: Windy. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. West winds 20 to 30 mph with gusts to around 50 mph shifting to the southwest 10 to 25 mph with gusts to around 40 mph after midnight.

Devon, MT

Today
Sunny
82°/ 45° 28°/ 7°
20%
Saturday
Sunny
60°/ 38° 16°/ 3°
0%
Sunday
Partly Cloudy
62°/ 40° 17°/ 4°
0%
Monday
Sunny
65°/ 45° 18°/ 7°
0%
Tuesday
Cloudy
45°7°
0%
Wed Night
Cloudy
45°7°
0%
Thursday
Rain
62°17°
20%

Day: Sunny. Highs 82 to 88. South winds 5 to 20 mph with gusts to around 40 mph.

Night: Windy. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. West winds 15 to 30 mph with gusts to around 55 mph.

Sandpoint, ID

Today
Thunderstorms
65°/ 35° 18°/ 2°
100%
Saturday
Cloudy
58°/ 32° 14°/ 0°
0%
Sunday
Cloudy
60°16°
0%
Sun Night
Cloudy
35°2°
0%
Mon Night
Cloudy
35°2°
0%
Tuesday
Rain Showers
58°/ 38° 14°/ 3°
40%
Wednesday
Rain Showers
65°18°
20%
Thursday
Rain Showers
65°18°
20%

Day: Rain showers. A chance of thunderstorms in the afternoon. Highs in the lower to mid 60s. Temperature falling into the lower 50s in the afternoon. Southwest wind 5 to 15 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation near 100 percent. Rainfall amounts less than a quarter of an inch, except higher amounts possible in thunderstorms.

Night: Mostly cloudy. Rain showers likely and a chance of thunderstorms in the evening, then a chance of rain showers overnight. Snow level 5500 feet overnight. Lows in the mid 30s to lower 40s. Southwest wind 5 to 15 mph with gusts up to 35 mph, except southwest 15 to 25 mph with gusts up to 40 mph in the mountains. Chance of precipitation 70 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.

Hamilton, MT

Today
Rain
78°/ 35° 26°/ 2°
40%
Saturday
Mostly Cloudy
60°/ 35° 16°/ 2°
0%
Sunday
Mostly Cloudy
65°/ 35° 18°/ 2°
20%
Monday
Sunny
68°/ 38° 20°/ 3°
0%
Tuesday
Cloudy
65°/ 40° 18°/ 4°
20%
Wednesday
Cloudy
65°/ 40° 18°/ 4°
0%
Thursday
Cloudy
68°20°
0%

Day: Mostly cloudy. A 40 percent chance of areas of rain late in the afternoon. Highs in the mid to upper 70s. Southwest winds 15 to 25 mph with gusts to around 35 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 40 percent chance of rain. Lows in the mid 30s to lower 40s. West winds 15 to 25 mph with gusts to around 40 mph.

Kellogg, ID

Today
Thunderstorms
65°/ 38° 18°/ 3°
100%
Saturday
Mostly Cloudy
58°/ 30° 14°/ -1°
0%
Sunday
Mostly Cloudy
65°18°
0%
Sun Night
Cloudy
35°2°
0%
Mon Night
Cloudy
35°2°
0%
Tuesday
Rain Showers
65°/ 45° 18°/ 7°
40%
Wednesday
Rain Showers
65°/ 45° 18°/ 7°
20%

Day: A chance of rain showers in the morning, then rain showers and a chance of thunderstorms in the afternoon. Highs in the lower to mid 60s. Temperature falling to around 50 in the afternoon. Southwest wind 5 to 15 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation near 100 percent. Rainfall amounts less than a quarter of an inch, except higher amounts possible in thunderstorms.

Night: Mostly cloudy. A chance of rain showers. Snow level 5500 feet overnight. Lows in the upper 30s to lower 40s. Southwest wind 5 to 15 mph with gusts up to 35 mph, except southwest 10 to 20 mph with gusts up to 40 mph in the mountains. Chance of precipitation 50 percent. Rainfall amounts less than a tenth of an inch.

Anaconda, MT

Today
Rain
82°/ 30° 28°/ -1°
20%
Saturday
Mostly Cloudy
62°/ 28° 17°/ -2°
0%
Sunday
Mostly Cloudy
58°/ 42° 14°/ 6°
40%
Monday
Sunny
58°/ 30° 14°/ -1°
0%
Tuesday
Cloudy
58°/ 35° 14°/ 2°
0%
Wednesday
Sunny
58°/ 30° 14°/ -1°
0%
Thursday
Cloudy
58°14°
0%

Day: Partly cloudy. A 20 percent chance of rain late in the afternoon. Highs in the 70s to lower 80s. South winds 15 to 20 mph shifting to the southwest 20 to 30 mph in the afternoon. Gusts up to 40 mph.

Night: Mostly cloudy in the evening then clearing. A 20 percent chance of rain. Lows in the 30s. West winds 15 to 25 mph with gusts to around 50 mph.

Great Falls, MT

Today
Sunny
85°/ 48° 29°/ 9°
0%
Saturday
Sunny
62°/ 38° 17°/ 3°
0%
Sunday
Partly Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
68°/ 45° 20°/ 7°
0%
Tue Night
Mostly Cloudy
48°9°
0%
Wednesday
Cloudy
68°20°
0%
Thursday
Cloudy
68°20°
0%

Day: Breezy, sunny. Highs in the mid 80s. South winds 10 to 15 mph shifting to the southwest 15 to 25 mph in the afternoon.

Night: Windy. Mostly cloudy in the evening then clearing. Lows in the upper 40s. West winds 15 to 30 mph with gusts to around 50 mph.

Marysville, MT

Today
Sunny
71°/ 34° 22°/ 1°
0%
Saturday
Sunny
49°/ 32° 9°/ 0°
0%
Sunday
Partly Cloudy
54°/ 36° 12°/ 2°
40%
Monday
Sunny
54°/ 35° 12°/ 2°
0%
Tue Night
Rain
38°3°
20%
Wednesday
Cloudy
54°12°
0%
Thursday
Cloudy
54°12°
0%

Day: Sunny. Highs 71 to 79. South winds up to 10 mph shifting to the southwest in the afternoon. Gusts up to 30 mph.

Night: Breezy, colder. Partly cloudy. Lows 34 to 42. West winds 10 to 25 mph with gusts to around 50 mph.

Coeur d'Alene, ID

Today
Thunderstorms
62°/ 45° 17°/ 7°
100%
Saturday
Mostly Cloudy
58°/ 38° 14°/ 3°
0%
Sunday
Cloudy
65°18°
0%
Sun Night
Cloudy
38°3°
0%
Mon Night
Cloudy
38°3°
0%
Tue-Tue Night
Rain Showers
62°17°
20%
Wednesday
Cloudy
65°18°
0%
Thursday
Cloudy
65°18°
0%

Day: A chance of rain showers in the morning, then rain showers and a chance of thunderstorms in the afternoon. Highs in the lower 60s, Southwest wind 5 to 15 mph, Gusts up to 30 mph. Chance of precipitation near 100 percent. Rainfall amounts less than a quarter of an inch, except higher amounts possible in thunderstorms.

Night: Mostly cloudy. A chance of rain showers in the evening. Lows in the lower to mid 40s. Breezy. Southwest wind 10 to 20 mph with gusts up to 35 mph. Chance of precipitation 20 percent.

Canyon Creek, MT

Today
Sunny
77°/ 45° 25°/ 7°
0%
Saturday
Sunny
56°/ 38° 13°/ 3°
0%
Sunday
Partly Cloudy
59°/ 42° 15°/ 6°
20%
Monday
Sunny
61°/ 45° 16°/ 7°
0%
Tuesday
Cloudy
45°7°
0%
Wednesday
Cloudy
45°7°
0%
Thursday
Cloudy
45°7°
0%

Day: Sunny. Highs 77 to 83. South winds 10 to 20 mph with gusts to around 35 mph.

Night: Windy, colder. Partly cloudy. Lows in the mid 40s. West winds 15 to 30 mph shifting to the southwest 15 to 20 mph after midnight. Gusts up to 55 mph.

Sandpoint, WA

Today
Thunderstorms
65°/ 35° 18°/ 2°
100%
Saturday
Cloudy
58°/ 32° 14°/ 0°
0%
Sunday
Cloudy
60°16°
0%
Sun Night
Cloudy
35°2°
0%
Mon Night
Cloudy
35°2°
0%
Tuesday
Rain Showers
58°/ 38° 14°/ 3°
40%
Wednesday
Rain Showers
65°18°
20%
Thursday
Rain Showers
65°18°
20%

Day: Rain showers. A chance of thunderstorms in the afternoon. Highs in the lower to mid 60s. Temperature falling into the lower 50s in the afternoon. Southwest wind 5 to 15 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation near 100 percent. Rainfall amounts less than a quarter of an inch, except higher amounts possible in thunderstorms.

Night: Mostly cloudy. Rain showers likely and a chance of thunderstorms in the evening, then a chance of rain showers overnight. Snow level 5500 feet overnight. Lows in the mid 30s to lower 40s. Southwest wind 5 to 15 mph with gusts up to 35 mph, except southwest 15 to 25 mph with gusts up to 40 mph in the mountains. Chance of precipitation 70 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.

Names listed above may include county names.

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