Apache Reservoir, MT Weather Forecast & Current Conditions

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Apache Reservoir Weather Map
UTC Time: 9/20/2026, 08:34
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Apache Reservoir, MT Regional Weather

Expires:202609200900;;755112
ASUS45 KTFX 200810
RWRMT 
Montana Regional Weather Roundup
National Weather Service Great Falls MT
200 AM MDT SUN SEP 20 2026

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


MTZ028>42-056>058-200900-
Southcentral and southeast Montana
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

Regional Reports...Dakotas/MN
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

Regional Reports...WY/CO/ID/WA/OR
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
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Other Reports
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
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Regional Reports...Alberta
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
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Regional Reports...Saskatchewan
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$
  

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

Apache Reservoir, MT

Today
Rain Showers
60°/ 48° 16°/
100%
Monday
Rain Showers
65°/ 48° 18°/
20%
Tuesday
Partly Cloudy
72°/ 50° 22°/ 10°
20%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
30%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
82°/ 55° 28°/ 13°
0%
Saturday
Sunny
78°26°
0%

Day: Patchy fog in the morning. Rain showers in the morning and early afternoon, then rain showers likely late in the afternoon. Highs around 60. East winds 10 to 20 mph. Chance of precipitation 100 percent.

Night: Rain showers likely early in the evening, then chance of rain showers late in the evening. Slight chance of rain showers overnight. Patchy fog overnight. Lows in the upper 40s. East winds 5 to 15 mph. Chance of precipitation 60 percent.

Broadus, MT

Today
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
20%
Tuesday
Sunny
75°/ 52° 24°/ 11°
20%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
85°/ 55° 29°/ 13°
0%
Saturday
Sunny
78°26°
0%

Day: Patchy fog in the morning. Rain showers in the morning and early afternoon. Slight chance of thunderstorms in the late morning and afternoon. Rain showers likely late in the afternoon. Some thunderstorms may produce heavy rainfall in the late morning and afternoon. Highs in the lower 60s. East winds 5 to 15 mph. Chance of precipitation 90 percent.

Night: Cloudy. A 50 percent chance of rain showers in the evening. Patchy fog through the night. Lows in the upper 40s. East winds 5 to 10 mph.

Buffalo, SD

Overnight
Thunderstorms
52°11°
80%
Sunday
Thunderstorms
58°/ 45° 14°/
90%
Monday
Rain Showers
65°/ 45° 18°/
30%
Tuesday
Cloudy
70°/ 50° 21°/ 10°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Cloudy
82°/ 55° 28°/ 13°
0%
Saturday
Cloudy
80°27°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

Baker, MT

Today
Rain Showers
62°/ 42° 17°/
90%
Monday
Partly Cloudy
68°/ 42° 20°/
0%
Tuesday
Sunny
75°/ 48° 24°/
20%
Wednesday
Thunderstorms
78°/ 48° 26°/
30%
Thursday
Sunny
85°/ 52° 29°/ 11°
0%
Friday
Sunny
85°/ 52° 29°/ 11°
0%
Saturday
Sunny
80°27°
0%

Day: Patchy fog in the morning. Rain showers in the morning and early afternoon, then chance of rain showers late in the afternoon. Highs in the lower 60s. East winds 10 to 20 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog overnight. Lows in the lower 40s. East winds 5 to 15 mph. Chance of precipitation 40 percent.

Miles City, MT

Today
Rain Showers
62°/ 48° 17°/
90%
Monday
Partly Cloudy
68°/ 48° 20°/
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
30%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
85°/ 55° 29°/ 13°
0%
Saturday
Sunny
78°26°
0%

Day: Patchy fog in the morning. Rain showers in the morning and early afternoon, then rain showers likely late in the afternoon. Highs in the lower 60s. East winds 5 to 15 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. A 20 percent chance of rain showers in the evening. Patchy fog in the late evening and overnight. Lows in the upper 40s. East winds 5 to 15 mph.

Moorcroft, WY

Overnight
Thunderstorms
48°
90%
Sunday
Thunderstorms
62°/ 42° 17°/
90%
Monday
Rain Showers
68°/ 42° 20°/
50%
Tuesday
Cloudy
75°/ 48° 24°/
20%
Wednesday
Rain Showers
78°/ 48° 26°/
20%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Sunny
82°/ 52° 28°/ 11°
0%
Saturday
Sunny
82°28°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Lows in the upper 40s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Sundance, WY

Overnight
Thunderstorms
55°13°
90%
Sunday
Thunderstorms
58°/ 45° 14°/
90%
Monday
Rain Showers
62°/ 45° 17°/
70%
Tuesday
Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Rain Showers
75°/ 52° 24°/ 11°
20%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Sunny
78°26°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Near steady temperature in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Terry, MT

Tonight
Thunderstorms
52°11°
90%
Sunday
Rain Showers
62°/ 48° 17°/
90%
Monday
Partly Cloudy
70°/ 48° 21°/
0%
Tue-Tue Night
Clear
78°26°
0%
Wed-Wed Night
Cloudy
78°26°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°/ 52° 29°/ 11°
0%

Night: A slight chance of thunderstorms this evening. Showers. Patchy fog. Some thunderstorms may produce heavy rainfall this evening. Lows in the lower 50s. Northeast wind around 10 mph. Chance of rain 90 percent.

Colony, WY

Overnight
Thunderstorms
52°11°
90%
Sunday
Thunderstorms
60°/ 45° 16°/
90%
Monday
Rain Showers
65°/ 45° 18°/
70%
Tuesday
Cloudy
75°/ 48° 24°/
20%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Sunny
82°/ 55° 28°/ 13°
0%
Saturday
Sunny
82°28°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

Belle Fourche, SD

Overnight
Thunderstorms
52°11°
80%
Sunday
Thunderstorms
58°/ 48° 14°/
90%
Monday
Rain Showers
65°/ 45° 18°/
50%
Tuesday
Cloudy
72°/ 50° 22°/ 10°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Cloudy
82°/ 55° 28°/ 13°
0%
Saturday
Sunny
82°28°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

Gillette, WY

Overnight
Thunderstorms
52°11°
70%
Sunday
Thunderstorms
62°/ 45° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
20%
Tuesday
Sunny
75°/ 52° 24°/ 11°
20%
Wednesday
Cloudy
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
82°/ 55° 28°/ 13°
0%
Saturday
Sunny
80°27°
0%

Night: Showers likely with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. Northwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Lame Deer, MT

Today
Thunderstorms
62°/ 48° 17°/
90%
Monday
Partly Cloudy
72°/ 48° 22°/
0%
Tuesday
Sunny
80°/ 50° 27°/ 10°
20%
Wednesday
Rain Showers
82°/ 48° 28°/
20%
Thursday
Sunny
85°/ 52° 29°/ 11°
0%
Friday
Sunny
88°/ 52° 31°/ 11°
0%
Saturday
Sunny
80°27°
0%

Day: Patchy fog in the morning. Rain showers in the morning and early afternoon. Slight chance of thunderstorms in the afternoon. Rain showers likely late in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs in the lower 60s. Northwest winds 5 to 10 mph. Chance of precipitation 90 percent.

Night: Rain showers likely early in the evening, then slight chance of rain showers late in the evening. Patchy fog early in the evening. Areas of fog in the late evening and overnight. Lows in the upper 40s. Northeast winds 5 to 10 mph in the evening becoming light overnight. Chance of precipitation 60 percent.

Lemmon, SD

Overnight
Thunderstorms
52°11°
70%
Sunday
Thunderstorms
58°/ 45° 14°/
90%
Monday
Cloudy
65°/ 45° 18°/
0%
Tuesday
Cloudy
68°/ 48° 20°/
0%
Wednesday
Thunderstorms
75°/ 50° 24°/ 10°
30%
Thursday
Cloudy
82°/ 52° 28°/ 11°
0%
Friday
Cloudy
80°/ 55° 27°/ 13°
0%
Saturday
Cloudy
80°27°
0%

Night: Showers likely with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 10 to 15 mph. Chance of rain 70 percent.

Colstrip, MT

Today
Thunderstorms
62°/ 48° 17°/
90%
Monday
Partly Cloudy
72°/ 48° 22°/
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
85°/ 55° 29°/ 13°
0%
Saturday
Sunny
78°26°
0%

Day: Patchy fog in the morning. Rain showers through the day. Slight chance of thunderstorms early in the afternoon. Some thunderstorms may produce heavy rainfall early in the afternoon. Highs in the lower 60s. East winds 5 to 15 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. A 20 percent chance of rain showers in the evening. Patchy fog through the night. Lows in the upper 40s. East winds 5 to 10 mph.

Usta, SD

Overnight
Thunderstorms
52°11°
70%
Sunday
Thunderstorms
58°/ 45° 14°/
90%
Monday
Rain Showers
65°/ 45° 18°/
30%
Tuesday
Cloudy
68°/ 48° 20°/
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
40%
Thursday
Cloudy
82°/ 52° 28°/ 11°
0%
Friday
Cloudy
82°/ 55° 28°/ 13°
0%
Saturday
Cloudy
82°28°
0%

Night: Showers likely with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Spearfish, SD

Overnight
Thunderstorms
52°11°
80%
Sunday
Thunderstorms
58°/ 48° 14°/
90%
Monday
Rain Showers
62°/ 45° 17°/
70%
Tuesday
Sunny
72°/ 52° 22°/ 11°
0%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
20%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Sunny
82°/ 58° 28°/ 14°
0%
Saturday
Sunny
80°27°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Lows in the lower 50s. East winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 80 percent.

Wibaux, MT

Tonight
Thunderstorms
50°10°
90%
Sunday
Rain Showers
60°/ 48° 16°/
80%
Monday
Partly Cloudy
68°/ 48° 20°/
0%
Tue-Tue Night
Clear
72°22°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
N/A
Thursday
Clear
82°28°
0%
Friday
Clear
82°/ 55° 28°/ 13°
0%

Night: A slight chance of thunderstorms this evening. Showers. Patchy fog. Some thunderstorms may produce heavy rainfall this evening. Lows around 50. East wind 10 to 15 mph. Chance of rain 90 percent.

Faith, SD

Overnight
Thunderstorms
55°13°
80%
Sunday
Thunderstorms
58°/ 48° 14°/
90%
Monday
Rain Showers
62°/ 45° 17°/
40%
Tuesday
Cloudy
68°/ 50° 20°/ 10°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
40%
Thursday
Cloudy
82°/ 52° 28°/ 11°
0%
Friday
Cloudy
82°/ 55° 28°/ 13°
0%
Saturday
Cloudy
82°28°
0%

Night: Showers with a slight chance of thunderstorms. Patchy fog. Near steady temperature in the mid 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

Lead, SD

Overnight
Thunderstorms
52°11°
90%
Sunday
Thunderstorms
52°/ 42° 11°/
90%
Monday
Rain Showers
55°/ 40° 13°/
90%
Tuesday
Cloudy
65°/ 45° 18°/
0%
Wednesday
Thunderstorms
72°/ 48° 22°/
20%
Thursday
Sunny
75°/ 48° 24°/
0%
Friday
Sunny
75°/ 50° 24°/ 10°
0%
Saturday
Sunny
75°24°
0%

Night: Showers with a slight chance of thunderstorms. Areas of fog. Near steady temperature in the lower 50s. Southeast winds around 5 mph. Chance of rain 90 percent.

Glendive, MT

Tonight
Thunderstorms
52°11°
90%
Sunday
Rain Showers
62°/ 48° 17°/
70%
Monday
Partly Cloudy
70°/ 48° 21°/
0%
Tue-Tue Night
Clear
75°24°
0%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
N/A
Thursday
Clear
85°29°
0%
Friday
Clear
85°/ 55° 29°/ 13°
0%

Night: Showers with a slight chance of thunderstorms this evening, then showers after midnight. Patchy fog. Some thunderstorms may produce heavy rainfall this evening. Lows in the lower 50s. Northeast wind 10 to 15 mph. Chance of rain 90 percent.

Names listed above may include county names.

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