Big Arm, MT Weather Forecast & Current Conditions

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Big Arm Weather Map
UTC Time: 10/10/2026, 19:24
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Big Arm, MT Regional Weather

Expires:202610102000;;871883
ASUS45 KTFX 101910
RWRMT 
Montana Regional Weather Roundup
National Weather Service Great Falls MT
100 PM MDT SAT OCT 10 2026

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


MTZ001>007-043-102000-
West of the divide
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
Kalispell      LGT RAIN  43  34  70 NE24G37   29.76R                  
Missoula       LGT RAIN  48  44  86 S5        29.70S                  
Butte          CLOUDY    44  41  89 N3        29.69S                  
Anaconda       CLOUDY    50  38  62 NE13      29.67F                  
Hamilton       CLOUDY    46  45  93 N5        29.70S                  
Mullan Pass    PTSUNNY   35  31  85 VRB3      29.71S                  
Plains         CLOUDY    55  45  67 SE5       29.69S                  
Ronan          MOCLDY    50  46  87 CALM      29.70S                  
$$


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

Big Arm, MT

Today
Rain
50°/ 25° 10°/ -4°
40%
Sunday
Snow
40°/ 20° 4°/ -7°
30%
Columbus Day
Cloudy
45°7°
0%
Mon Night
Clear
20°-7°
0%
Tuesday
Sunny
50°/ 25° 10°/ -4°
0%
Wednesday
Rain
50°/ 28° 10°/ -2°
20%
Thursday
Cloudy
55°/ 28° 13°/ -2°
0%
Friday
Cloudy
58°14°
0%

Day: Mostly cloudy with a 40 percent chance of areas of rain. Cooler. Highs in the 50s. Northeast winds 15 to 25 mph in the afternoon.

Night: Mostly cloudy with a chance of snow. A chance of rain in the evening. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s. Northeast winds 15 to 25 mph with gusts to around 35 mph.

Swan Lake, MT

Today
Snow
40°/ 32° 4°/ 0°
50%
Sunday
Snow
30°/ 20° -1°/ -7°
70%
Columbus Day
Cloudy
38°3°
0%
Mon Night
Clear
32°0°
0%
Tuesday
Sunny
45°/ 25° 7°/ -4°
0%
Wednesday
Rain
45°/ 28° 7°/ -2°
30%
Thursday
Snow
48°/ 28° 9°/ -2°
20%
Friday
Cloudy
55°13°
0%

Day: Mostly cloudy with a 50 percent chance of areas of rain and snow. Cooler. Highs in the 40s. Northeast winds to 15 mph increasing to 20 to 30 mph in the afternoon.

Night: Mostly cloudy with a 50 percent chance of snow. Patchy blowing snow. Lows in the 20s to lower 30s. Windy with northeast winds 20 to 30 mph.

Libby, MT

Today
Rain
50°/ 25° 10°/ -4°
40%
Sunday
Snow
40°/ 20° 4°/ -7°
20%
Columbus Day
Sunny
48°9°
0%
Mon Night
Clear
20°-7°
0%
Tuesday
Sunny
62°/ 25° 17°/ -4°
0%
Wednesday
Cloudy
55°/ 28° 13°/ -2°
0%
Thursday
Cloudy
55°/ 28° 13°/ -2°
0%
Friday
Cloudy
60°16°
0%

Day: Mostly cloudy with a 40 percent chance of areas of rain. Areas of fog in the morning. Cooler. Highs in the 50s. Northeast winds 15 to 20 mph.

Night: Mostly cloudy. Lows in the mid 20s to lower 30s. Northeast winds 15 to 20 mph.

East Missoula, MT

Today
Snow
45°/ 20° 7°/ -7°
90%
Sunday
Snow
35°/ 20° 2°/ -7°
80%
Columbus Day
Snow
38°3°
20%
Mon Night
Cloudy
20°-7°
0%
Tuesday
Sunny
45°/ 25° 7°/ -4°
0%
Wednesday
Rain
48°/ 25° 9°/ -4°
20%
Thursday
Cloudy
50°/ 28° 10°/ -2°
0%
Friday
Sunny
55°13°
0%

Day: Rain likely early in the morning. Areas of rain late in the morning, then rain and snow likely in the afternoon. Patchy fog in the morning. Chance of precipitation 70 percent. Cooler. No snow accumulation. Highs in the mid 40s to lower 50s.

Night: Rain with snow likely in the evening, then snow likely after midnight. Chance of precipitation 90 percent. Snow level 4000 feet. Little or no new snow accumulation. Lows in the 20s. East winds 15 to 20 mph.

Noxon, MT

Today
Rain
50°/ 25° 10°/ -4°
70%
Sunday
Snow
38°/ 32° 3°/ 0°
50%
Columbus Day
Cloudy
45°7°
0%
Mon Night
Clear
25°-4°
0%
Tuesday
Sunny
50°/ 28° 10°/ -2°
0%
Wednesday
Rain
62°/ 30° 17°/ -1°
20%
Thursday
Cloudy
55°/ 30° 13°/ -1°
0%
Friday
Sunny
60°16°
0%

Day: Mostly cloudy with a 50 percent chance of areas of rain. Patchy fog early in the morning. Cooler. Highs in the 50s. North winds to 15 mph in the afternoon.

Night: A chance of rain and snow likely. Chance of precipitation 70 percent. Snow level 4000 feet. Little or no new snow accumulation. Lows in the mid 20s to lower 30s. Northeast winds 15 to 20 mph with gusts to around 35 mph.

Hamilton, MT

Today
Rain
52°/ 28° 11°/ -2°
90%
Sunday
Snow
45°/ 25° 7°/ -4°
80%
Columbus Day
Snow
48°9°
20%
Mon Night
Cloudy
20°-7°
0%
Tuesday
Sunny
55°/ 28° 13°/ -2°
0%
Wednesday
Rain
58°/ 30° 14°/ -1°
20%
Thursday
Cloudy
60°/ 30° 16°/ -1°
0%
Friday
Sunny
60°16°
0%

Day: Rain likely in the morning, then areas of rain early in the afternoon. Rain likely late in the afternoon. Patchy fog in the morning. Chance of rain 90 percent. Cooler. Highs in the lower 50s.

Night: Rain likely. Snow likely after midnight. Chance of precipitation 90 percent. Little or no new snow accumulation. Lows in the mid to upper 20s. Northeast winds 15 to 20 mph with gusts to around 35 mph.

East Glacier Park, MT

Today
Snow
25°/ 22° -4°/ -6°
100%
Sunday
Snow
22°/ 22° -6°/ -6°
100%
Columbus Day
Snow
32°0°
50%
Mon Night
Cloudy
25°-4°
0%
Tue-Tue Night
Clear
37°3°
0%
Wednesday
Snow
38°/ 32° 3°/ 0°
30%
Thursday
Snow
39°/ 32° 4°/ 0°
20%

Day: Breezy. Much colder. Chance of snow late in the morning, then snow likely late in the afternoon. New snow accumulation up to 2 inches. Near steady temperature in the mid 20s. North winds 10 to 25 mph. Chance of snow 70 percent.

Night: Windy, colder, snow. Patchy blowing snow in the evening. Patchy blowing snow after midnight. Visibility one quarter mile or less at times after midnight. Snow accumulation of 1 to 6 inches. Near steady temperature in the lower 20s. North winds 15 to 30 mph with gusts to around 60 mph. Chance of snow near 100 percent.

Kellogg, ID

Today
Sunny
55°/ 35° 13°/ 2°
50%
Sunday
Snow Showers
45°/ 28° 7°/ -2°
50%
Columbus Day
Sunny
58°14°
0%
Mon Night
Clear
28°-2°
0%
Tue Night
Clear
28°-2°
0%
Wednesday
Rain Showers
58°/ 38° 14°/ 3°
20%
Thu Night
Cloudy
38°3°
0%
Friday
Sunny
68°20°
0%

Day: Mostly sunny. Highs in the lower to mid 50s.

Night: Mostly cloudy with a chance of rain showers. A chance of mountain snow showers. Snow level 5000 feet, lowering to 3500 feet overnight. Lows in the lower to mid 30s. Northeast wind 5 to 15 mph overnight. In the mountains, northeast wind 10 to 20 mph overnight. Gusts up to 30 mph. Chance of precipitation 50 percent.

Browning, MT

Today
Snow
32°/ 28° 0°/ -2°
100%
Sunday
Snow
28°/ 25° -2°/ -4°
100%
Columbus Day
Snow
38°3°
50%
Mon Night
Cloudy
22°-6°
0%
Tue-Tue Night
Clear
48°9°
0%
Wednesday
Sunny
50°/ 32° 10°/ 0°
20%
Thu Night-Fri
Cloudy
32°0°
0%

Day: Windy. Much colder. Snow likely. New snow accumulation up to 1 inch. Near steady temperature in the lower 30s. North winds 20 to 30 mph. Chance of snow 70 percent.

Night: Windy, colder, snow. Patchy blowing snow. Snow accumulation of 2 to 6 inches. Near steady temperature in the upper 20s. North winds 15 to 30 mph with gusts to around 50 mph. Chance of snow near 100 percent.

Anaconda, MT

Today
Thunderstorms
52°/ 19° 11°/ -7°
100%
Sunday
Snow
30°/ 18° -1°/ -8°
100%
Columbus Day
Snow
35°2°
40%
Mon Night
Cloudy
18°-8°
0%
Tuesday
Cloudy
40°/ 20° 4°/ -7°
0%
Wednesday
Sunny
45°/ 32° 7°/ 0°
20%
Thursday
Cloudy
48°/ 25° 9°/ -4°
0%
Friday
Sunny
55°13°
0%

Day: Rain likely through the day. Snow likely and a slight chance of thunderstorms in the afternoon. Areas of fog early in the morning. Patchy fog late in the morning. Chance of precipitation near 100 percent. Cooler. No snow accumulation. Highs in the 40s to lower 50s. Northeast winds 15 to 20 mph with gusts to around 30 mph in the afternoon.

Night: Rain and snow likely in the evening, then snow likely after midnight. Patchy blowing snow after midnight. Chance of precipitation near 100 percent. Snow level 4500 feet. Snow accumulations of 2 to 4 inches. Lows 19 to 26. Northeast winds 15 to 25 mph with gusts to around 40 mph.

Sandpoint, ID

Today
Snow Showers
55°/ 28° 13°/ -2°
50%
Sunday
Partly Cloudy
48°/ 25° 9°/ -4°
0%
Columbus Day
Sunny
50°10°
0%
Mon Night
Clear
28°-2°
0%
Tuesday
Clear
28°-2°
0%
Wednesday
Clear
28°-2°
0%
Thu Night
Clear
28°-2°
0%
Friday
Sunny
60°16°
0%

Day: Partly sunny. Widespread frost in the morning. A chance of rain and mountain snow showers in the afternoon. Snow level 4500 feet. Highs in the lower to mid 50s. Gusts up to 20 mph in the afternoon. Chance of precipitation 50 percent.

Night: Partly cloudy. A chance of rain and mountain snow showers in the evening. Snow level 4500 feet in the evening. Lows in the upper 20s to mid 30s. Northeast wind 5 to 15 mph overnight. In the mountains, northeast wind 15 to 25 mph. Gusts up to 30 mph. Chance of precipitation 20 percent.

Bynum, MT

Today
Snow
32°/ 28° 0°/ -2°
100%
Sunday
Snow
28°/ 28° -2°/ -2°
100%
Columbus Day
Snow
38°3°
60%
Mon Night
Mostly Cloudy
22°-6°
0%
Tue-Tue Night
Clear
45°7°
0%
Wednesday
Sunny
48°/ 32° 9°/ 0°
20%
Thursday
Snow
50°/ 32° 10°/ 0°
20%

Day: Breezy. Much colder. Snow likely late in the morning. Rain through the day. Snow in the afternoon. New snow accumulation up to 3 inches. Snow level 4000 feet. Near steady temperature in the lower 30s. North winds 10 to 25 mph. Chance of precipitation near 100 percent.

Night: Windy, colder, snow. Patchy blowing snow. Snow accumulation of 3 to 8 inches. Near steady temperature in the upper 20s. North winds 15 to 30 mph. Gusts up to 45 mph increasing to 55 mph after midnight. Chance of snow near 100 percent.

Marysville, MT

Today
Snow
38°/ 25° 3°/ -4°
100%
Sunday
Snow
25°/ 25° -4°/ -4°
100%
Columbus Day
Snow
33°1°
50%
Mon Night
Mostly Cloudy
21°-6°
0%
Tuesday
Sunny
38°/ 24° 3°/ -4°
0%
Wed Night-Thu
Snow
27°-3°
20%
Thu Night-Fri
Cloudy
27°-3°
0%

Day: Much colder. Rain and snow late in the morning, then snow late in the afternoon. New snow accumulation up to 3 inches. Snow level 5100 feet. Highs 38 to 44. North winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Breezy, colder, snow. Patchy blowing snow in the evening. Patchy blowing snow after midnight. Snow may be heavy at times in the evening. Visibility one quarter mile or less at times after midnight. Snow accumulation of 2 to 8 inches. Near steady temperature in the mid 20s. Northeast winds 10 to 25 mph with gusts to around 60 mph. Chance of snow near 100 percent.

Pierce, ID

Today
Mostly Cloudy
48°/ 25° 9°/ -4°
30%
Sunday
Snow
45°/ 20° 7°/ -7°
20%
Columbus Day
Cloudy
48°9°
0%
Mon Night
Clear
20°-7°
0%
Tuesday
Sunny
50°/ 25° 10°/ -4°
0%
Wednesday
Rain
62°/ 25° 17°/ -4°
20%
Thursday
Cloudy
58°/ 28° 14°/ -2°
0%
Friday
Sunny
65°18°
0%

Day: Mostly cloudy. Patchy fog early in the morning. Cooler. Highs in the upper 40s to mid 50s.

Night: Mostly clear in the evening then becoming mostly cloudy. A 30 percent chance of rain. Lows in the mid 20s to lower 30s.

Cut Bank, MT

Today
Snow
32°/ 28° 0°/ -2°
100%
Sunday
Snow
32°/ 22° 0°/ -6°
100%
Columbus Day
Snow
40°4°
50%
Mon Night
Cloudy
22°-6°
0%
Tue-Tue Night
Clear
48°9°
0%
Wednesday
Sunny
55°/ 30° 13°/ -1°
20%
Thu-Thu Night
Cloudy
55°13°
0%
Friday
Sunny
62°17°
0%

Day: Windy. Much colder. Cloudy. Chance of snow and rain late in the morning, then chance of snow in the afternoon. Near steady temperature in the lower 30s. North winds 20 to 30 mph with gusts to around 50 mph. Chance of precipitation 50 percent.

Night: Windy, colder. Snow likely in the evening, then snow after midnight. Patchy blowing snow through the night. Snow accumulation of 1 to 3 inches. Near steady temperature in the upper 20s. North winds 20 to 30 mph with gusts to around 60 mph. Chance of snow near 100 percent.

Sula, MT

Today
Snow
45°/ 25° 7°/ -4°
100%
Sunday
Snow
35°/ 20° 2°/ -7°
90%
Columbus Day
Snow
38°3°
30%
Mon Night
Mostly Cloudy
20°-7°
0%
Tuesday
Cloudy
45°/ 25° 7°/ -4°
0%
Wednesday
Rain
45°/ 25° 7°/ -4°
20%
Thursday
Cloudy
50°/ 28° 10°/ -2°
0%
Friday
Sunny
58°14°
0%

Day: Slight chance of rain and snow in the morning, then rain and snow likely in the afternoon. Areas of fog early in the morning. Chance of precipitation 80 percent. Cooler. No snow accumulation. Highs in the mid 40s to lower 50s.

Night: Rain and snow likely. Chance of precipitation near 100 percent. Snow level 5500 feet. Snow accumulations of 1 to 2 inches. Lows in the mid 20s to lower 30s. Northeast winds 15 to 20 mph with gusts to around 30 mph.

Brady, MT

Today
Snow
35°/ 25° 2°/ -4°
100%
Sunday
Snow
32°/ 28° 0°/ -2°
100%
Columbus Day
Snow
38°3°
70%
Mon Night
Mostly Cloudy
22°-6°
0%
Tue-Tue Night
Clear
45°7°
0%
Wednesday
Sunny
52°/ 28° 11°/ -2°
20%
Thu-Thu Night
Cloudy
55°13°
0%
Friday
Sunny
62°17°
0%

Day: Breezy. Much colder. Rain and slight chance of snow late in the morning, then snow and rain likely late in the afternoon. Snow accumulation up to 1 inch. Near steady temperature in the mid 30s. North winds 15 to 25 mph. Chance of precipitation near 100 percent.

Night: Breezy, colder, snow. Patchy blowing snow. Snow accumulation of 2 to 4 inches. Lows in the mid 20s. North winds 15 to 25 mph. Chance of snow near 100 percent.

Great Falls, MT

Today
Snow
35°/ 30° 2°/ -1°
100%
Sunday
Snow
30°/ 30° -1°/ -1°
100%
Columbus Day
Snow
38°3°
70%
Mon Night
Mostly Cloudy
25°-4°
0%
Tue-Tue Night
Clear
45°7°
0%
Wednesday
Sunny
52°/ 32° 11°/ 0°
20%
Thursday
Snow
52°/ 32° 11°/ 0°
30%
Friday
Sunny
62°17°
0%

Day: Much colder. Rain through the day. Slight chance of snow early in the afternoon, then snow late in the afternoon. Snow accumulation up to 2 inches. Near steady temperature in the mid 30s. North winds 10 to 20 mph. Chance of precipitation near 100 percent.

Night: Breezy. Much colder. Snow. Patchy blowing snow after midnight. Snow accumulation of 2 to 7 inches. Near steady temperature around 30. North winds 15 to 25 mph with gusts to around 50 mph. Chance of snow near 100 percent.

Coeur d'Alene, ID

Today
Rain Showers
58°/ 38° 14°/ 3°
20%
Sunday
Snow Showers
48°/ 35° 9°/ 2°
20%
Columbus Day
Sunny
58°14°
0%
Mon Night
Clear
28°-2°
0%
Tue Night
Clear
28°-2°
0%
Wednesday
Rain Showers
65°/ 35° 18°/ 2°
20%
Thursday
Clear
35°2°
0%
Friday
Clear
35°2°
0%

Day: Partly sunny. A chance of rain showers in the afternoon. Highs in the mid to upper 50s. South wind 5 to 10 mph in the morning, becoming light and variable. Chance of precipitation 20 percent.

Night: Mostly cloudy with a 20 percent chance of rain showers. Lows in the mid to upper 30s. Northeast wind 5 to 15 mph with gusts up to 30 mph.

Canyon Creek, MT

Today
Snow
32°/ 28° 0°/ -2°
100%
Sunday
Snow
28°/ 28° -2°/ -2°
100%
Columbus Day
Snow
34°1°
70%
Mon Night
Mostly Cloudy
25°-4°
0%
Tuesday
Sunny
40°/ 28° 4°/ -2°
0%
Wed Night
Rain
32°0°
20%
Thursday
Snow
46°/ 32° 8°/ 0°
30%

Day: Much colder. Rain and snow. New snow accumulation up to 3 inches. Snow level 4500 feet. Near steady temperature in the lower 30s. North winds 10 to 20 mph. Gusts up to 35 mph in the afternoon. Chance of precipitation near 100 percent.

Night: Windy, colder, snow. Patchy blowing snow. Snow may be heavy at times. Snow accumulation of 2 to 8 inches. Near steady temperature in the upper 20s. North winds 15 to 30 mph with gusts to around 60 mph. Chance of snow near 100 percent.

Names listed above may include county names.

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