Watchtower Lake, MT Weather Forecast & Current Conditions

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Watchtower Lake Weather Map
UTC Time: 9/25/2026, 13:36
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Watchtower Lake, MT Regional Weather

Expires:202609251400;;032904
ASUS45 KTFX 251310
RWRMT 
Montana Regional Weather Roundup
National Weather Service Great Falls MT
700 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>007-043-251400-
West of the divide
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
Kalispell      PTCLDY    42  41  96 NW5       29.75F                  
Missoula       MOCLDY    51  45  79 CALM      29.80F                  
Butte          CLEAR     42  35  76 SE6       30.04F                  
Anaconda       SUNNY     54  36  49 S13       29.96F                  
Hamilton       MOCLDY    59  43  55 SW8       29.83F                  
Mullan Pass    MOCLDY    59  33  37 MISG      29.88S                  
Plains         PTSUNNY   46  46 100 CALM      29.74S                  
Ronan          SUNNY     46  46 100 N6        29.74F                  
$$


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

Watchtower Lake, MT

Today
Rain
68°/ 30° 20°/ -1°
50%
Saturday
Mostly Cloudy
50°/ 28° 10°/ -2°
0%
Sunday
Mostly Cloudy
55°/ 42° 13°/ 6°
40%
Monday
Sunny
55°/ 30° 13°/ -1°
0%
Tuesday
Cloudy
55°/ 35° 13°/ 2°
20%
Wednesday
Cloudy
55°/ 42° 13°/ 6°
0%
Thursday
Sunny
58°14°
0%

Day: Partly 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 with a 50 percent chance of rain. Lows in the 30s. West winds 15 to 20 mph with gusts to around 40 mph.

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.

Salmon, ID

Today
Cloudy
70°/ 35° 21°/ 2°
20%
Saturday
Mostly Cloudy
55°/ 35° 13°/ 2°
0%
Sunday
Rain
58°/ 38° 14°/ 3°
40%
Monday
Cloudy
58°/ 35° 14°/ 2°
0%
Tuesday
Cloudy
58°/ 35° 14°/ 2°
0%
Wednesday
Sunny
60°/ 35° 16°/ 2°
0%
Thursday
Sunny
60°16°
0%

Day: Partly cloudy. Highs in the 70s. Southeast winds to 15 mph shifting to the southwest 15 to 25 mph with gusts to around 40 mph in the afternoon.

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

Powell, ID

Today
Rain
58°/ 30° 14°/ -1°
90%
Saturday
Mostly Cloudy
49°/ 28° 9°/ -2°
0%
Sunday
Mostly Cloudy
53°/ 42° 12°/ 6°
0%
Monday
Sunny
53°/ 31° 12°/ -1°
0%
Tuesday
Cloudy
52°/ 34° 11°/ 1°
30%
Wednesday
Cloudy
53°/ 32° 12°/ 0°
20%
Thursday
Cloudy
54°12°
0%

Day: Areas of rain early in the afternoon. Rain likely late in the afternoon. Chance of rain 90 percent. Cooler. Highs in the upper 50s to lower 70s. South winds to 15 mph shifting to the west 15 to 20 mph with gusts to around 40 mph in the afternoon.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of rain. Patchy fog after midnight. Lows 30 to 43. West winds to 15 mph.

Dewey, MT

Today
Sunny
62°/ 27° 17°/ -3°
0%
Saturday
Partly Cloudy
48°/ 29° 9°/ -2°
0%
Sunday
Mostly Cloudy
51°/ 31° 11°/ -1°
50%
Monday
Cloudy
50°10°
0%
Tue Night
Cloudy
50°10°
0%
Wednesday
Sunny
51°/ 29° 11°/ -2°
0%

Day: Breezy. Mostly sunny. Highs 62 to 72. South winds 5 to 15 mph with gusts to around 35 mph shifting to the southwest 10 to 25 mph with gusts to around 45 mph in the afternoon.

Night: Breezy, colder. Partly cloudy. Lows 27 to 35. West winds 10 to 25 mph decreasing to 5 to 15 mph after midnight. Gusts up to 45 mph.

Shoup, ID

Today
Cloudy
70°/ 38° 21°/ 3°
20%
Saturday
Mostly Cloudy
58°/ 38° 14°/ 3°
0%
Sunday
Mostly Cloudy
58°/ 40° 14°/ 4°
30%
Monday
Cloudy
60°/ 38° 16°/ 3°
0%
Tuesday
Cloudy
60°/ 40° 16°/ 4°
0%
Wednesday
Sunny
60°/ 38° 16°/ 3°
0%
Thursday
Sunny
60°16°
0%

Day: Partly cloudy. Highs in the 70s. Southwest winds 15 to 20 mph with gusts to around 40 mph in the afternoon.

Night: Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s to mid 40s. Southwest winds 15 to 20 mph with gusts to around 35 mph.

Kooskia, ID

Today
Rain
60°/ 38° 16°/ 3°
100%
Saturday
Cloudy
65°/ 35° 18°/ 2°
0%
Sunday
Mostly Cloudy
58°/ 38° 14°/ 3°
0%
Monday
Sunny
58°/ 38° 14°/ 3°
0%
Tuesday
Cloudy
60°/ 40° 16°/ 4°
0%
Wednesday
Sunny
72°/ 40° 22°/ 4°
0%
Thursday
Cloudy
72°22°
0%

Day: Rain likely in the afternoon. Chance of rain near 100 percent. Cooler. Highs in the 60s. Southwest winds to 15 mph shifting to the northwest 15 to 20 mph in the afternoon. Gusts up to 35 mph.

Night: Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s to mid 40s. Southwest winds 15 to 20 mph with gusts to around 45 mph mainly south of Highway 12.

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.

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.

Pierce, ID

Today
Rain
60°/ 30° 16°/ -1°
90%
Saturday
Cloudy
55°/ 25° 13°/ -4°
0%
Sunday
Mostly Cloudy
60°/ 30° 16°/ -1°
0%
Monday
Sunny
58°/ 30° 14°/ -1°
0%
Tuesday
Mostly Cloudy
58°/ 35° 14°/ 2°
20%
Wednesday
Cloudy
60°/ 42° 16°/ 6°
20%
Thursday
Cloudy
60°16°
0%

Day: Rain likely in the afternoon. Chance of rain 90 percent. Cooler. Highs in the 60s. West winds to 15 mph in the afternoon.

Night: Mostly cloudy. A 40 percent chance of rain in the evening. Patchy fog after midnight. Lows in the 30s. West winds to 15 mph.

West Central Mountains, ID

Today
Rain Showers
60°/ 31° 16°/ -1°
30%
Saturday
Mostly Cloudy
51°/ 35° 11°/ 2°
0%
Sunday
Rain Showers
56°/ 34° 13°/ 1°
20%
Monday
Sunny
56°/ 34° 13°/ 1°
0%
Tuesday
Sunny
56°/ 35° 13°/ 2°
0%
Wednesday
Sunny
57°/ 35° 14°/ 2°
0%
Thursday
Sunny
57°14°
0%

Day: Partly cloudy. A chance of rain showers this afternoon. Areas of smoke this afternoon. Chance of rain 30 percent. Highs 60 to 73. Temperature falling into the lower 60s this afternoon. Breezy.

Night: Partly cloudy. A slight chance of rain showers in the evening. Patchy smoke in the evening. Areas of fog after midnight. Chance of rain 20 percent. Much colder with lows 31 to 41.

Kamiah, ID

Today
Rain Showers
62°/ 35° 17°/ 2°
90%
Saturday
Cloudy
55°/ 35° 13°/ 2°
0%
Sunday
Mostly Cloudy
62°17°
0%
Sun Night
Cloudy
38°3°
0%
Thursday
Cloudy
38°3°
0%
Friday
Cloudy
38°3°
0%
Wednesday
Cloudy
38°3°
0%
Wed Night
Rain Showers
40°4°
20%
Thursday
Cloudy
62°17°
0%

Day: Mostly cloudy. A chance of rain showers in the morning, then rain showers in the afternoon. Highs in the lower 60s to lower 70s. West wind 5 to 15 mph. Gusts up to 25 mph increasing to 35 mph in the afternoon. Chance of precipitation 90 percent. Rainfall amounts around a tenth of an inch.

Night: Mostly clear. A chance of rain showers in the evening. Patchy blowing dust in the evening. Lows in the mid 30s to mid 40s. West wind 5 to 15 mph with gusts up to 45 mph in the evening, becoming light and variable. Chance of precipitation 20 percent.

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.

Riggins, ID

Today
Rain
78°/ 40° 26°/ 4°
70%
Saturday
Mostly Cloudy
58°/ 40° 14°/ 4°
0%
Sunday
Mostly Cloudy
62°/ 40° 17°/ 4°
0%
Monday
Sunny
62°/ 40° 17°/ 4°
0%
Tuesday
Cloudy
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Cloudy
75°24°
0%

Day: Rain likely in the afternoon. Chance of rain 70 percent. Highs in the 60s to upper 70s. South winds to 15 mph shifting to the west 15 to 20 mph in the afternoon. Gusts up to 35 mph.

Night: Partly cloudy. A 30 percent chance of rain in the evening. Colder. Lows in the 40s. North winds 15 to 20 mph with gusts to around 30 mph.

Bannack, MT

Today
Sunny
73°/ 38° 23°/ 3°
0%
Saturday
Partly Cloudy
61°/ 40° 16°/ 4°
0%
Sunday
Mostly Cloudy
61°/ 42° 16°/ 6°
40%
Monday
Rain
60°/ 38° 16°/ 3°
20%
Tue Night
Cloudy
38°3°
0%
Wednesday
Sunny
62°/ 38° 17°/ 3°
0%
Thursday
Sunny
63°17°
0%

Day: Breezy, sunny. Highs 73 to 79. South winds 5 to 10 mph with gusts to around 30 mph increasing to southwest 15 to 25 mph with gusts to around 40 mph in the afternoon.

Night: Breezy. Partly cloudy. Lows in the upper 30s. Southwest winds 15 to 25 mph becoming west 5 to 15 mph after midnight. Gusts up to 40 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.

Lewiston, ID

Today
Rain Showers
62°/ 45° 17°/ 7°
90%
Saturday
Cloudy
58°/ 35° 14°/ 2°
0%
Sunday
Mostly Cloudy
62°17°
0%
Sun Night
Cloudy
40°4°
0%
Friday
Cloudy
40°4°
0%
Saturday
Cloudy
40°4°
0%
Sunday
Cloudy
40°4°
0%
Thursday
Cloudy
40°4°
0%

Day: Mostly cloudy. A chance of rain showers in the morning, then rain showers in the afternoon. Highs in the lower 60s to lower 70s. West wind 5 to 15 mph with gusts up to 35 mph. Chance of precipitation 90 percent. Rainfall amounts less than a tenth of an inch.

Night: Patchy blowing dust in the evening. Mostly clear. Lows in the lower to mid 40s. Breezy. West wind 10 to 20 mph in the evening, becoming light and variable. Gusts up to 40 mph.

Montana City, MT

Today
Sunny
68°/ 34° 20°/ 1°
0%
Saturday
Partly Cloudy
51°/ 32° 11°/ 0°
0%
Sunday
Mostly Cloudy
54°/ 36° 12°/ 2°
40%
Monday
Cloudy
54°12°
0%
Tue Night
Cloudy
54°12°
0%
Wednesday
Sunny
55°/ 35° 13°/ 2°
0%

Day: Sunny. Highs 68 to 78. South winds 5 to 20 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon.

Night: Breezy, colder. Mostly clear. Lows 34 to 42. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. Gusts up to 45 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.

Harrison, MT

Today
Sunny
80°/ 42° 27°/ 6°
0%
Saturday
Partly Cloudy
65°/ 40° 18°/ 4°
0%
Sunday
Mostly Cloudy
65°/ 42° 18°/ 6°
50%
Monday
Rain
65°/ 42° 18°/ 6°
20%
Tue Night
Cloudy
42°6°
0%
Wednesday
Sunny
68°/ 40° 20°/ 4°
0%

Day: Sunny. Highs around 80. South winds up to 5 mph with gusts to around 25 mph increasing to southwest 10 to 15 mph with gusts to around 40 mph in the afternoon.

Night: Breezy. Partly cloudy. Lows in the lower 40s. West winds 15 to 25 mph becoming northwest 5 to 10 mph after midnight. Gusts up to 45 mph.

Names listed above may include county names.

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