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Garrison, MT Weather

It is 33°F in Garrison, MT, observed at 11:45 PM MDT. Today: Slight Chance Light Snow, high 44°F, low 24°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).

Garrison, MT current weather

33°F

Mostly Cloudy

H 44° / L 24°Feels like 33°

  • No rain expected in the next 12 hours

Observed at Garrison I-90 MP 174.4 (0.3 mi away), 10/27/2026, 11:45 PM MDT

Hourly forecast

NWS, updated 10/27/2026, 1:01 PM PT

  1. Now29°
  2. 1 AM29°
  3. 2 AM28°
  4. 3 AM28°
  5. 4 AM27°
  6. 5 AM26°
  7. 6 AM26°12%
  8. 7 AM26°14%
  9. 8 AM25°21%
  10. 9 AM28°11%
  11. 10 AM33°
  12. 11 AM37°10%
  13. 12 PM41°18%
  14. 1 PM42°17%
  15. 2 PM42°12%
  16. 3 PM43°11%
  17. 4 PM42°13%
  18. 5 PM41°13%
  19. 6 PM38°
  20. 7 PM33°
  21. 8 PM31°
  22. 9 PM30°
  23. 10 PM28°
  24. 11 PM28°
  25. Thu12 AM27°
  26. 1 AM26°
  27. 2 AM25°
  28. 3 AM25°
  29. 4 AM23°
  30. 5 AM23°
  31. 6 AM23°
  32. 7 AM22°
  33. 8 AM22°
  34. 9 AM24°
  35. 10 AM29°
  36. 11 AM34°
  37. 12 PM39°
  38. 1 PM42°
  39. 2 PM44°
  40. 3 PM44°
  41. 4 PM43°
  42. 5 PM41°
  43. 6 PM39°
  44. 7 PM35°
  45. 8 PM32°
  46. 9 PM29°
  47. 10 PM28°
  48. 11 PM27°

7-day forecast

Tap a day for details

  • Today10/2821% chance of precipitationLow 24°High 44°

    Wednesday: A slight chance of snow between 8am and 9am, then a slight chance of rain between noon and 1pm, then a slight chance of rain and snow between 1pm and 2pm. Mostly sunny, with a high near 44. South southwest wind 2 to 6 mph. Chance of precipitation is 20%.

    Overnight: Mostly cloudy, with a low around 24. South southeast wind around 5 mph.

    Slight Chance Light Snow
  • Thu10/29Low 22°High 45°

    Thursday: Patchy fog before 11am. Mostly sunny, with a high near 45. East southeast wind around 2 mph.

    Thursday Night: Partly cloudy, with a low around 22. East northeast wind around 5 mph.

    Patchy Fog then Mostly Sunny
  • Fri10/3021% chance of precipitationLow 26°High 48°

    Friday: Mostly cloudy, with a high near 48.

    Friday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 26.

    Mostly Cloudy
  • Sat10/3167% chance of precipitationLow 26°High 49°

    Saturday: Partly sunny, with a high near 49.

    Saturday Night: Rain likely before 5am, then rain and snow likely. Mostly cloudy, with a low around 26. Little or no snow accumulation expected.

    Partly Sunny
  • Sun11/167% chance of precipitationLow 23°High 43°

    Sunday: Rain and snow likely. Mostly cloudy, with a high near 43. Little or no snow accumulation expected.

    Sunday Night: A chance of rain and snow. Mostly cloudy, with a low around 23.

    Rain And Snow Likely
  • Mon11/223% chance of precipitationLow 22°High 43°

    Monday: A slight chance of snow before 2pm, then a slight chance of rain and snow between 2pm and 5pm. Mostly sunny, with a high near 43.

    Monday Night: Partly cloudy, with a low around 22.

    Slight Chance Light Snow
  • Tue11/3Low High 49°

    Tuesday: Mostly sunny, with a high near 49.

    Mostly Sunny

Forecast for 46.522, -112.814 from the NWS MSO office, updated 10/27/2026, 1:01 PM PT · Official forecast on weather.gov

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now29°Mostly Cloudy7%5 mph
  2. 1 AM29°Mostly Cloudy3%3 mph
  3. 2 AM28°Mostly Cloudy2%3 mph
  4. 3 AM28°Partly Cloudy4%3 mph
  5. 4 AM27°Partly Cloudy2%3 mph
  6. 5 AM26°Mostly Cloudy6%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
20°35°50°0%100%WedThuFriSatSunMonTue43°25°44°22°46°23°48°27°42°29°41°25°36°23°

Line: temperature °F. Bars: chance of precipitation.

  1. WedNow29°Feels 24°7% Sky 55%5g12
  2.  1 AM29°Feels 25°3% Sky 57%3g10
  3.  2 AM28°Feels 24°2% Sky 54%3g9
  4.  3 AM28°Feels 24°4% Sky 39%3g8
  5.  4 AM27°Feels 23°2% Sky 39%3g8
  6.  5 AM26° 6% Sky 58%2g7
  7.  6 AM26° 12% Sky 52%2g7
  8.  7 AM26°Feels 22°14% Sky 52%3g8
  9.  8 AM25° 21% Sky 49%2g7
  10.  9 AM28°Feels 24°11% Sky 50%3g8
  11.  10 AM33° 9% Sky 36%2g8
  12.  11 AM37°Feels 34°10% Sky 39%3g8
  13.  12 PM41° 18% Sky 38%3g9
  14.  1 PM42° 17% Sky 41%3g12
  15.  2 PM42°Feels 39°12% Sky 39%5g14
  16.  3 PM43°Feels 39°11% Sky 36%6g15
  17.  4 PM42°Feels 39°13% Sky 45%5g13
  18.  5 PM41° 13% Sky 50%3g9
  19.  6 PM38° 6% Sky 41%1g6
  20.  7 PM33° 7% Sky 41%1g6
  21.  8 PM31° 0% Sky 41%1g6
  22.  9 PM30° 0% Sky 34%0g5
  23.  10 PM28° 0% Sky 34%0g5
  24.  11 PM28° 5% Sky 34%0g5
  25. Thu 10/2912 AM27° 0% Sky 32%0g5
  26.  1 AM26° 0% Sky 32%0g5
  27.  2 AM25° 0% Sky 32%0g5
  28.  3 AM25° 0% Sky 48%0
  29.  4 AM23° 0% Sky 48%0
  30.  5 AM23° 0% Sky 48%0
  31.  6 AM23° 0% Sky 67%1
  32.  7 AM22° 0% Sky 67%1
  33.  8 AM22° 0% Sky 67%1
  34.  9 AM24° 0% Sky 34%1
  35.  10 AM29° 0% Sky 34%1
  36.  11 AM34° 0% Sky 34%1
  37.  12 PM39° 0% Sky 18%1g6
  38.  1 PM42° 0% Sky 18%1g6
  39.  2 PM44° 0% Sky 18%1g6
  40.  3 PM44° 0% Sky 22%2g9
  41.  4 PM43° 0% Sky 22%2g9
  42.  5 PM41° 0% Sky 22%2g9
  43.  6 PM39° 0% Sky 37%3g8
  44.  7 PM35°Feels 32°0% Sky 37%3g8
  45.  8 PM32°Feels 29°0% Sky 37%3g8
  46.  9 PM29°Feels 25°0% Sky 43%3g8
  47.  10 PM28°Feels 24°0% Sky 43%3g8
  48.  11 PM27°Feels 23°0% Sky 43%3g8
  49. Fri 10/3012 AM27°Feels 22°0% Sky 57%5g10
  50.  1 AM26°Feels 20°0% Sky 57%5g10
  51.  2 AM25°Feels 19°0% Sky 57%5g10
  52.  3 AM24°Feels 20°0% Sky 61%3g9
  53.  4 AM24°Feels 20°0% Sky 61%3g9
  54.  5 AM23°Feels 18°0% Sky 61%3g9
  55.  6 AM23°Feels 18°8% Sky 71%3g8
  56.  7 AM24°Feels 20°8% Sky 71%3g8
  57.  8 AM25°Feels 21°8% Sky 71%3g8
  58.  9 AM27°Feels 23°8% Sky 85%3g8
  59.  10 AM31°Feels 28°8% Sky 85%3g8
  60.  11 AM35°Feels 32°8% Sky 85%3g8
  61.  12 PM40° 8% Sky 69%2g8
  62.  1 PM43° 8% Sky 69%2g8
  63.  2 PM45° 8% Sky 69%2g8
  64.  3 PM46° 8% Sky 68%2g7
  65.  4 PM46° 8% Sky 68%2g7
  66.  5 PM45° 8% Sky 68%2g7
  67.  6 PM41° 21% Sky 67%1
  68.  7 PM38° 21% Sky 67%1
  69.  8 PM35° 21% Sky 67%1
  70.  9 PM33° 21% Sky 67%0
  71.  10 PM32° 21% Sky 67%0
  72.  11 PM32° 21% Sky 67%0
  73. Sat 10/3112 AM32° 5% Sky 50%0
  74.  1 AM31° 5% Sky 50%0
  75.  2 AM30° 5% Sky 50%0
  76.  3 AM29° 5% Sky 50%0
  77.  4 AM28° 5% Sky 50%0
  78.  5 AM27° 5% Sky 50%0
  79.  6 AM27° 5% Sky 55%0
  80.  7 AM27° 5% Sky 55%0
  81.  8 AM29° 5% Sky 55%0
  82.  9 AM31° 5% Sky 55%0
  83.  10 AM34° 5% Sky 55%0
  84.  11 AM38° 5% Sky 55%0
  85.  12 PM42° 10% Sky 48%0
  86.  1 PM45° 10% Sky 48%0
  87.  2 PM47° 10% Sky 48%0
  88.  3 PM48° 10% Sky 48%1g6
  89.  4 PM47° 10% Sky 48%1g6
  90.  5 PM45° 10% Sky 48%1g6
  91.  6 PM43° 42% Sky 68%0g5
  92.  7 PM41° 42% Sky 68%0g5
  93.  8 PM38° 42% Sky 68%0g5
  94.  9 PM36° 42% Sky 68%1g6
  95.  10 PM35° 42% Sky 68%1g6
  96.  11 PM34° 42% Sky 68%1g6
  97. Sun 11/112 AM33° 67% Sky 78%1
  98.  1 AM32° 67% Sky 78%1
  99.  1 AM31° 67% Sky 78%1
  100.  2 AM30° 67% Sky 78%1g6
  101.  3 AM29° 67% Sky 78%1g6
  102.  4 AM29° 67% Sky 78%1g6
  103.  5 AM29° 67%0.02" snowSky 84%1
  104.  6 AM29° 67%0.02" snowSky 84%1
  105.  7 AM30° 67%0.02" snowSky 84%1
  106.  8 AM32° 67%0.02" snowSky 84%2g7
  107.  9 AM35° 67%0.02" snowSky 84%2g7
  108.  10 AM38° 67%0.02" snowSky 84%2g7
  109.  11 AM40° 60%0.01"Sky 79%3g9
  110.  12 PM41° 60%0.01"Sky 79%3g9
  111.  1 PM42° 60%0.01"Sky 79%3g9
  112.  2 PM42°Feels 38°60%0.01"Sky 79%6g15
  113.  3 PM41°Feels 37°60%0.01"Sky 79%6g15
  114.  4 PM40°Feels 36°60%0.01"Sky 79%6g15
  115.  5 PM38°Feels 34°46% Sky 79%5g14
  116.  6 PM36°Feels 32°46% Sky 79%5g14
  117.  7 PM35°Feels 31°46% Sky 79%5g14
  118.  8 PM33°Feels 27°46% Sky 79%7g15
  119.  9 PM32°Feels 26°46% Sky 79%7g15
  120.  10 PM31°Feels 24°46% Sky 79%7g15
  121.  11 PM30°Feels 23°27% Sky 64%7g14
  122. Mon 11/212 AM29°Feels 22°27% Sky 64%7g14
  123.  1 AM28°Feels 21°27% Sky 64%7g14
  124.  2 AM27°Feels 22°27% Sky 64%5g12
  125.  3 AM26°Feels 20°27% Sky 64%5g12
  126.  4 AM25°Feels 19°27% Sky 64%5g12
  127.  5 AM25°Feels 21°23% Sky 60%3g8
  128.  6 AM25°Feels 21°23% Sky 60%3g8
  129.  7 AM25°Feels 21°23% Sky 60%3g8
  130.  8 AM27° 23% Sky 60%2g7
  131.  9 AM30° 23% Sky 60%2g7
  132.  10 AM34° 23% Sky 60%2g7
  133.  11 AM37° 15% Sky 27%2g7
  134.  12 PM39° 15% Sky 27%2g7
  135.  1 PM41° 15% Sky 27%2g7
  136.  2 PM41° 15% Sky 27%2g8
  137.  3 PM40° 15% Sky 27%2g8
  138.  4 PM39° 15% Sky 27%2g8
  139.  5 PM37° 12% Sky 29%1
  140.  6 PM35° 12% Sky 29%1
  141.  7 PM32° 12% Sky 29%1
  142.  8 PM30° 12% Sky 29%0
  143.  9 PM29° 12% Sky 29%0
  144.  10 PM28° 12% Sky 29%0
  145.  11 PM27° 8% Sky 25%1g6
  146. Tue 11/312 AM26° 8% Sky 25%1g6
  147.  1 AM25° 8% Sky 25%1g6
  148.  2 AM24° 8% Sky 25%1
  149.  3 AM23° 8% Sky 25%1
  150.  4 AM23° 8% Sky 25%1
  151.  5 AM23° 6% Sky 39%1
  152.  6 AM23° 6% Sky 39%1
  153.  7 AM25° 6% Sky 39%1
  154.  8 AM27° 6% Sky 39%1
  155.  9 AM31° 6% Sky 39%1
  156.  10 AM36° 6% Sky 39%1

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/27/2026, 1:01 PM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Montana hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

Drought

By county

Powell County, week of 10/20/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
8:07 AM
Sunset
6:22 PM
Daylight
10 hr 15 min
Moon
Waning Gibbous 95% lit
First light (civil dawn)
7:36 AM
Last light (civil dusk)
6:53 PM
Moonrise
7:33 PM
Moonset
11:35 AM

Normal October weather

Climate

Normal October high 55°, low 26°, precipitation 1.00 in for the month. 1991 to 2020 normals at Deer Lodge 3 W, 9 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

What is the weather in Garrison, MT right now?
The latest observation from Garrison I-90 MP 174.4 was 33°F, reported at 10/27/2026, 11:45 PM MDT.
What is the high temperature today in Garrison, MT?
The National Weather Service forecast for wednesday calls for a high near 44°F. Slight Chance Light Snow.
Will it rain in Garrison, MT in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What time is sunrise and sunset in Garrison, MT today?
Sunrise is about 8:07 AM MDT and sunset is about 6:22 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Garrison, MT?
At Deer Lodge 3 W, the 1991 to 2020 normal high in October is 55°F and the normal low is 26°F.

About this data

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