Avon, MT Weather Forecast & Current Conditions

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Avon, MT Weather Maps

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Avon Weather Map
UTC Time: 9/18/2026, 07:36
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Avon, MT Regional Weather

Expires:202609180800;;643422
ASUS45 KTFX 180710
RWRMT 
Montana Regional Weather Roundup
National Weather Service Great Falls MT
100 AM MDT FRI SEP 18 2026

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


MTZ001>007-043-180800-
West of the divide
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
Kalispell      PTCLDY    51  49  92 CALM      30.07R                  
Missoula       PTCLDY    54  49  83 CALM      30.08R                  
Butte          CLEAR     46  45  96 S7        30.19R                  
Anaconda       SUNNY     53  46  79 S10       30.15R                  
Hamilton       CLEAR     52  48  87 S3        30.09S                  
Mullan Pass    PTCLDY    55  44  66 SW3       30.18S                  
Plains         MOSUNNY   55  55 100 CALM      30.05R                  
Ronan          MOSUNNY   54  52  94 E6        30.07R                  
$$


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

Avon, MT

Today
Thunderstorms
72°/ 40° 22°/
100%
Saturday
Thunderstorms
55°/ 38° 13°/
70%
Sunday
Sunny
65°/ 38° 18°/
0%
Monday
Sunny
68°/ 40° 20°/
0%
Tuesday
Sunny
68°/ 38° 20°/
0%
Wednesday
Sunny
68°/ 38° 20°/
0%
Thursday
Sunny
70°21°
0%

Day: Areas of rain in the morning. Rain showers likely and a chance of thunderstorms in the afternoon. Areas of fog in the morning. Chance of precipitation 70 percent. Highs in the 60s to lower 70s. North winds to 15 mph in the afternoon.

Night: Rain showers likely and a slight chance of thunderstorms. Areas of fog after midnight. Chance of precipitation near 100 percent. Lows in the 40s.

Marysville, MT

Tonight
Thunderstorms
61°16°
70%
Saturday
Thunderstorms
52°/ 42° 11°/
50%
Sunday
Sunny
62°/ 45° 17°/
0%
Monday
Clear
63°17°
0%
Tuesday
Clear
63°17°
0%
Wednesday
Clear
63°17°
0%
Thursday
Clear
63°/ 45° 17°/
0%

Night: Mostly cloudy. Rain showers likely and chance of thunderstorms. Highs 61 to 69. Lows 44 to 50. North winds up to 10 mph. Chance of precipitation 70 percent.

Canyon Creek, MT

Tonight
Thunderstorms
67°19°
70%
Saturday
Rain Showers
58°/ 45° 14°/
50%
Sun-Sun Night
Clear
68°20°
0%
Monday
Clear
70°21°
0%
Tuesday
Clear
70°/ 48° 21°/
0%
Wednesday
Clear
70°21°
0%
Thu Night
Clear
70°21°
0%
Friday
Sunny
70°21°
0%

Night: Mostly cloudy. Rain showers likely and slight chance of thunderstorms. Highs 67 to 73. Lows around 50. North winds up to 10 mph. Chance of precipitation 70 percent.

Helena, MT

Tonight
Thunderstorms
75°24°
90%
Saturday
Thunderstorms
65°/ 45° 18°/
70%
Sunday
Sunny
75°/ 48° 24°/
0%
Monday
Clear
78°26°
0%
Tuesday
Clear
78°26°
0%
Wednesday
Clear
78°26°
0%
Thursday
Clear
78°26°
0%
Friday
Clear
78°26°
0%

Night: Mostly cloudy. Rain showers and chance of thunderstorms. Highs in the mid 70s. Lows around 50. Northwest winds up to 10 mph. Chance of precipitation 90 percent.

Montana City, MT

Tonight
Thunderstorms
59°15°
100%
Saturday
Thunderstorms
48°/ 38° /
100%
Sunday
Sunny
59°/ 40° 15°/
0%
Mon-Mon Night
Clear
62°17°
0%
Tuesday
Rain
63°/ 42° 17°/
20%
Wednesday
Clear
63°17°
0%
Thu Night
Clear
63°17°
0%
Friday
Sunny
64°18°
0%

Night: Rain showers and chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs 59 to 67. Lows 43 to 51. North winds up to 10 mph. Chance of precipitation near 100 percent.

Bynum, MT

Tonight
Thunderstorms
70°21°
50%
Saturday
Rain Showers
65°/ 45° 18°/
50%
Sunday
Sunny
72°/ 48° 22°/
0%
Monday
Sunny
75°/ 48° 24°/
0%
Tuesday
Sunny
75°/ 50° 24°/ 10°
0%
Wednesday
Cloudy
50°10°
0%
Thursday
Cloudy
50°10°
0%
Friday
Cloudy
50°10°
0%

Night: Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs around 70. Lows in the lower 50s. Northwest winds up to 10 mph. Chance of precipitation 50 percent.

Sula, MT

Today
Thunderstorms
60°/ 40° 16°/
90%
Saturday
Thunderstorms
62°/ 38° 17°/
90%
Sunday
Sunny
65°/ 40° 18°/
0%
Monday
Sunny
68°/ 40° 20°/
0%
Tuesday
Sunny
65°/ 40° 18°/
0%
Wednesday
Sunny
65°/ 40° 18°/
0%
Thursday
Sunny
68°20°
0%

Day: Slight chance of rain in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Patchy fog in the morning. Chance of precipitation 70 percent. Highs in the 60s.

Night: Rain showers likely and a slight chance of thunderstorms in the evening, then rain likely after midnight. Patchy fog in the evening, then areas of fog after midnight. Chance of precipitation 90 percent. Lows in the 40s.

East Missoula, MT

Today
Thunderstorms
68°/ 52° 20°/ 11°
50%
Saturday
Thunderstorms
72°/ 40° 22°/
50%
Sunday
Sunny
68°/ 40° 20°/
0%
Monday
Sunny
70°/ 52° 21°/ 11°
0%
Tuesday
Sunny
68°/ 40° 20°/
0%
Wednesday
Sunny
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
70°21°
0%

Day: Mostly cloudy. Areas of fog in the morning. Chance of rain showers and a slight chance of thunderstorms late in the afternoon. Chance of precipitation 50 percent. Highs in the upper 60s to mid 70s.

Night: Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Areas of fog after midnight. Chance of precipitation 50 percent. Lows in the 40s to lower 50s.

Toston, MT

Tonight
Thunderstorms
72°22°
90%
Saturday
Thunderstorms
57°/ 48° 14°/
90%
Sunday
Partly Cloudy
68°/ 44° 20°/
0%
Mon-Mon Night
Clear
75°24°
0%
Tuesday
Sunny
75°/ 45° 24°/
0%
Wednesday
Clear
45°
0%
Thursday
Clear
45°
0%
Friday
Clear
45°
0%

Night: Mostly cloudy. Rain showers and chance of thunderstorms. Highs in the lower 70s. Lows 49 to 54. North winds up to 10 mph. Chance of precipitation 90 percent.

Harrison, MT

Tonight
Thunderstorms
70°21°
90%
Saturday
Thunderstorms
58°/ 45° 14°/
90%
Sunday
Partly Cloudy
68°/ 45° 20°/
0%
Mon-Mon Night
Clear
72°22°
0%
Tue-Tue Night
Cloudy
75°24°
0%
Wednesday
Clear
75°24°
0%
Thursday
Clear
75°24°
0%
Friday
Clear
75°24°
0%

Night: Mostly cloudy with rain showers and chance of thunderstorms. Patchy fog in the late evening and overnight. Highs around 70. Lows around 50. North winds up to 5 mph with gusts to around 20 mph. Chance of precipitation 90 percent.

Dewey, MT

Tonight
Thunderstorms
53°12°
100%
Saturday
Thunderstorms
46°/ 38° /
90%
Sunday
Sunny
56°/ 40° 13°/
0%
Monday
Sunny
59°/ 38° 15°/
0%
Tuesday
Sunny
58°/ 37° 14°/
0%
Wednesday
Clear
59°15°
0%
Thursday
Clear
59°/ 39° 15°/
0%
Friday
Sunny
60°16°
0%

Night: Rain showers and chance of thunderstorms. Patchy fog early in the morning. Some thunderstorms may produce heavy rainfall. Highs 53 to 63. Lows 39 to 45. North winds up to 10 mph. Chance of precipitation near 100 percent.

Great Falls, MT

Tonight
Rain Showers
72°22°
50%
Saturday
Rain Showers
65°/ 48° 18°/
50%
Sunday
Sunny
72°/ 48° 22°/
0%
Monday
Clear
78°26°
0%
Tuesday
Clear
78°26°
0%
Wednesday
Clear
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%

Night: Mostly cloudy. A 50 percent chance of rain showers. Highs in the lower 70s. Lows around 50. North winds up to 10 mph.

Bannack, MT

Tonight
Thunderstorms
63°17°
70%
Saturday
Thunderstorms
55°/ 42° 13°/
90%
Sunday
Partly Cloudy
63°/ 42° 17°/
0%
Monday
Sunny
68°/ 45° 20°/
0%
Tue Night
Cloudy
45°
0%
Wednesday
Clear
70°21°
0%
Thursday
Clear
70°/ 45° 21°/
0%
Friday
Sunny
70°21°
0%

Night: Rain showers likely and chance of thunderstorms. Patchy fog early in the morning. Highs 63 to 69. Lows 45 to 50. Northwest winds up to 10 mph. Chance of precipitation 70 percent.

Hamilton, MT

Today
Thunderstorms
75°/ 50° 24°/ 10°
50%
Saturday
Thunderstorms
65°/ 48° 18°/
50%
Sunday
Sunny
70°/ 48° 21°/
0%
Monday
Sunny
80°/ 48° 27°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°/ 48° 26°/
0%
Thursday
Sunny
80°27°
0%

Day: Mostly cloudy. Patchy fog in the morning. A 50 percent chance of showers and thunderstorms in the afternoon. Highs in the lower to mid 70s.

Night: Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Patchy fog after midnight. Chance of precipitation 50 percent. Lows near 50.

Trident, MT

Tonight
Thunderstorms
61°16°
100%
Saturday
Thunderstorms
49°/ 45° /
100%
Sunday
Rain Showers
56°/ 45° 13°/
50%
Mon-Mon Night
Clear
61°16°
0%
Tue-Tue Night
Cloudy
63°17°
0%
Wednesday
Clear
63°17°
0%
Thu Night
Clear
63°17°
0%
Friday
Sunny
64°18°
0%

Night: Rain showers and chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs 61 to 69. Lows 46 to 51. Northeast winds up to 10 mph. Chance of precipitation near 100 percent.

Brady, MT

Tonight
Rain Showers
72°22°
20%
Saturday
Rain
68°/ 45° 20°/
20%
Sunday
Sunny
75°/ 45° 24°/
0%
Monday
Clear
75°24°
0%
Tuesday
Clear
75°/ 48° 24°/
0%
Wednesday
Sunny
75°/ 48° 24°/
0%
Thursday
Cloudy
48°
0%
Friday
Cloudy
48°
0%

Night: Mostly cloudy. A 20 percent chance of rain showers. Highs in the lower 70s. Lows in the upper 40s. North winds up to 10 mph.

Noxon, MT

Today
Mostly Cloudy
70°/ 45° 21°/
50%
Saturday
Rain
70°/ 45° 21°/
50%
Sunday
Sunny
75°/ 45° 24°/
0%
Monday
Sunny
75°/ 45° 24°/
0%
Tuesday
Cloudy
82°/ 45° 28°/
0%
Wednesday
Cloudy
70°/ 45° 21°/
0%
Thursday
Cloudy
75°24°
0%

Day: Mostly cloudy. Areas of fog early in the morning. Highs in the 70s.

Night: Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Chance of precipitation 50 percent. Lows in the mid 40s to lower 50s.

Martinsdale, MT

Tonight
Thunderstorms
70°21°
100%
Saturday
Thunderstorms
58°/ 42° 14°/
100%
Sunday
Rain Showers
65°/ 42° 18°/
20%
Mon-Mon Night
Clear
70°21°
0%
Tuesday
Sunny
72°/ 45° 22°/
0%
Wednesday
Clear
45°
0%
Thursday
Clear
45°
0%
Friday
Clear
45°
0%

Night: Rain showers and chance of thunderstorms. Patchy fog after midnight. Highs around 70. Lows in the upper 40s. Northeast winds up to 10 mph. Chance of precipitation near 100 percent.

Bozeman, MT

Tonight
Thunderstorms
70°21°
90%
Saturday
Thunderstorms
58°/ 45° 14°/
90%
Sunday
Rain Showers
68°/ 45° 20°/
20%
Mon-Mon Night
Clear
72°22°
0%
Tuesday
Rain
75°/ 45° 24°/
20%
Wednesday
Clear
75°24°
0%
Thu Night
Clear
75°24°
0%
Friday
Sunny
75°24°
0%

Night: Rain showers and chance of thunderstorms. Patchy fog in the late evening and overnight. Some thunderstorms may produce heavy rainfall. Highs around 70. Lows around 50. North winds up to 5 mph. Chance of precipitation 90 percent.

Kalispell, MT

Today
Cloudy
70°/ 45° 21°/
0%
Saturday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Sunday
Sunny
70°/ 45° 21°/
0%
Monday
Sunny
70°/ 45° 21°/
0%
Tuesday
Cloudy
70°/ 45° 21°/
0%
Wednesday
Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Cloudy
68°20°
0%

Day: Partly cloudy. Patchy fog early in the morning. Highs in the 70s.

Night: Mostly cloudy. Patchy fog after midnight. Lows in the mid 40s to lower 50s.

Names listed above may include county names.

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