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Custer, MT Weather

Tonight: Partly Cloudy, low 32°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).

Custer, MT current weather

41°F

Mostly Clear

Forecast for this hour. No recent report from a nearby station.

H -- / L 32°

  • No rain expected in the next 12 hours

No recent station report. NWS hourly forecast updated 10/27/2026, 6:42 PM PT

Hourly forecast

NWS, updated 10/27/2026, 6:42 PM PT

  1. Now41°
  2. 11 PM39°
  3. Wed12 AM38°
  4. 1 AM37°
  5. 2 AM37°
  6. 3 AM36°
  7. 4 AM34°
  8. 5 AM33°
  9. 6 AM33°
  10. 7 AM32°
  11. 8 AM32°
  12. 9 AM34°
  13. 10 AM41°
  14. 11 AM47°
  15. 12 PM53°
  16. 1 PM55°
  17. 2 PM56°
  18. 3 PM58°
  19. 4 PM57°
  20. 5 PM56°
  21. 6 PM53°
  22. 7 PM47°
  23. 8 PM45°
  24. 9 PM43°
  25. 10 PM41°
  26. 11 PM38°
  27. Thu12 AM37°
  28. 1 AM36°
  29. 2 AM34°
  30. 3 AM32°
  31. 4 AM30°
  32. 5 AM29°
  33. 6 AM29°
  34. 7 AM28°
  35. 8 AM29°
  36. 9 AM30°
  37. 10 AM35°
  38. 11 AM41°
  39. 12 PM46°
  40. 1 PM49°
  41. 2 PM50°
  42. 3 PM51°
  43. 4 PM50°
  44. 5 PM48°
  45. 6 PM46°
  46. 7 PM44°
  47. 8 PM41°
  48. 9 PM38°

7-day forecast

Tap a day for details

  • Today10/27Low 32°High

    Tonight: Partly cloudy, with a low around 32. West southwest wind around 6 mph.

    Partly Cloudy
  • Wed10/28Low 28°High 58°

    Wednesday: Sunny. High near 58, with temperatures falling to around 56 in the afternoon. West southwest wind 3 to 12 mph.

    Wednesday Night: Mostly clear, with a low around 28. East southeast wind around 6 mph.

    Sunny
  • Thu10/29Low 30°High 51°

    Thursday: Sunny. High near 51, with temperatures falling to around 48 in the afternoon. North northeast wind 3 to 7 mph.

    Thursday Night: Mostly cloudy, with a low around 30. Northeast wind around 6 mph.

    Sunny
  • Fri10/30Low 32°High 52°

    Friday: Partly sunny. High near 52, with temperatures falling to around 50 in the afternoon. East northeast wind around 3 mph.

    Friday Night: Mostly cloudy, with a low around 32. North northeast wind around 1 mph.

    Partly Sunny
  • Sat10/3115% chance of precipitationLow 35°High 55°

    Saturday: Mostly sunny. High near 55, with temperatures falling to around 52 in the afternoon. North northwest wind around 2 mph.

    Saturday Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 35. North northeast wind around 2 mph. Chance of precipitation is 20%.

    Mostly Sunny
  • Sun11/170% chance of precipitationLow 35°High 53°

    Sunday: Rain showers likely. Mostly cloudy. High near 53, with temperatures falling to around 49 in the afternoon. North wind 0 to 7 mph. Chance of precipitation is 70%.

    Sunday Night: Rain showers likely. Mostly cloudy, with a low around 35. North northwest wind 6 to 15 mph. Chance of precipitation is 70%.

    Rain Showers Likely
  • Mon11/252% chance of precipitationLow 30°High 49°

    Monday: A chance of rain showers. Mostly cloudy. High near 49, with temperatures falling to around 44 in the afternoon. Northwest wind 8 to 15 mph. Chance of precipitation is 50%.

    Monday Night: A chance of rain showers before 5am. Mostly cloudy, with a low around 30. West northwest wind 2 to 8 mph. Chance of precipitation is 30%.

    Chance Rain Showers
  • Tue11/314% chance of precipitationLow High 53°

    Tuesday: Mostly sunny. High near 53, with temperatures falling to around 47 in the afternoon. West wind around 5 mph.

    Mostly Sunny

Forecast for 46.130, -107.554 from the NWS BYZ office, updated 10/27/2026, 6:42 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. Now41°Mostly Clear0%6 mph
  2. 11 PM39°Mostly Clear1%6 mph
  3. 12 AM38°Mostly Cloudy1%6 mph
  4. 1 AM37°Mostly Cloudy2%6 mph
  5. 2 AM37°Mostly Cloudy3%6 mph
  6. 3 AM36°Mostly Cloudy4%6 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
25°43°60°0%100%TueWedThuFriSatSunMonTue58°32°51°28°51°30°55°32°53°35°49°35°34°30°

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

  1. TueNow41°0%6
  2.  11 PM39°1%6
  3. Wed 10/2812 AM38°1%6
  4.  1 AM37°2%6
  5.  2 AM37°3%6
  6.  3 AM36°4%6
  7.  4 AM34°2%5
  8.  5 AM33°0%5
  9.  6 AM33°0%3
  10.  7 AM32°0%3
  11.  8 AM32°0%3
  12.  9 AM34°0%5
  13.  10 AM41°0%7
  14.  11 AM47°0%9
  15.  12 PM53°0%10
  16.  1 PM55°0%12
  17.  2 PM56°0%12
  18.  3 PM58°0%12
  19.  4 PM57°1%10
  20.  5 PM56°1%8
  21.  6 PM53°2%6
  22.  7 PM47°3%5
  23.  8 PM45°3%5
  24.  9 PM43°3%5
  25.  10 PM41°1%5
  26.  11 PM38°1%6
  27. Thu 10/2912 AM37°0%6
  28.  1 AM36°0%6
  29.  2 AM34°0%5
  30.  3 AM32°0%5
  31.  4 AM30°0%5
  32.  5 AM29°0%5
  33.  6 AM29°0%5
  34.  7 AM28°0%5
  35.  8 AM29°0%5
  36.  9 AM30°0%3
  37.  10 AM35°0%3
  38.  11 AM41°0%3
  39.  12 PM46°0%3
  40.  1 PM49°0%3
  41.  2 PM50°0%3
  42.  3 PM51°0%7
  43.  4 PM50°0%7
  44.  5 PM48°0%7
  45.  6 PM46°0%5
  46.  7 PM44°0%5
  47.  8 PM41°0%5
  48.  9 PM38°0%6
  49.  10 PM36°0%6
  50.  11 PM35°0%6
  51. Fri 10/3012 AM34°0%5
  52.  1 AM33°0%5
  53.  2 AM32°0%5
  54.  3 AM31°0%5
  55.  4 AM30°0%5
  56.  5 AM30°0%5
  57.  6 AM30°0%3
  58.  7 AM30°0%3
  59.  8 AM30°0%3
  60.  9 AM32°0%3
  61.  10 AM36°0%3
  62.  11 AM40°0%3
  63.  12 PM45°0%3
  64.  1 PM48°0%3
  65.  2 PM50°0%3
  66.  3 PM51°0%2
  67.  4 PM51°0%2
  68.  5 PM50°0%2
  69.  6 PM47°0%1
  70.  7 PM45°0%1
  71.  8 PM42°0%1
  72.  9 PM40°0%0
  73.  10 PM38°0%0
  74.  11 PM36°0%0
  75. Sat 10/3112 AM35°2%0
  76.  1 AM34°2%0
  77.  2 AM33°2%0
  78.  3 AM33°2%0
  79.  4 AM32°2%0
  80.  5 AM32°2%0
  81.  6 AM32°1%0
  82.  7 AM32°1%0
  83.  8 AM32°1%0
  84.  9 AM34°1%1
  85.  10 AM38°1%1
  86.  11 AM44°1%1
  87.  12 PM49°3%2
  88.  1 PM52°3%2
  89.  2 PM54°3%2
  90.  3 PM55°3%2
  91.  4 PM54°3%2
  92.  5 PM52°3%2
  93.  6 PM50°7%2
  94.  7 PM48°7%2
  95.  8 PM45°7%2
  96.  9 PM43°7%0
  97.  10 PM41°7%0
  98.  11 PM40°7%0
  99. Sun 11/112 AM39°10%0
  100.  1 AM38°10%0
  101.  1 AM37°10%0
  102.  2 AM36°10%0
  103.  3 AM35°10%0
  104.  4 AM35°10%0
  105.  5 AM35°15%0
  106.  6 AM35°15%0
  107.  7 AM35°15%0
  108.  8 AM37°15%1
  109.  9 AM40°15%1
  110.  10 AM44°15%1
  111.  11 AM48°33%3
  112.  12 PM51°33%3
  113.  1 PM52°33%3
  114.  2 PM53°33%7
  115.  3 PM52°33%7
  116.  4 PM51°33%7
  117.  5 PM49°67%6
  118.  6 PM47°67%6
  119.  7 PM45°67%6
  120.  8 PM43°67%9
  121.  9 PM42°67%9
  122.  10 PM41°67%9
  123.  11 PM40°70%9
  124. Mon 11/212 AM39°70%9
  125.  1 AM38°70%9
  126.  2 AM37°70%13
  127.  3 AM36°70%13
  128.  4 AM36°70%13
  129.  5 AM36°52%15
  130.  6 AM35°52%15
  131.  7 AM35°52%15
  132.  8 AM36°52%15
  133.  9 AM39°52%15
  134.  10 AM42°52%15
  135.  11 AM45°39%13
  136.  12 PM47°39%13
  137.  1 PM49°39%13
  138.  2 PM49°39%13
  139.  3 PM48°39%13
  140.  4 PM46°39%13
  141.  5 PM44°26%8
  142.  6 PM42°26%8
  143.  7 PM40°26%8
  144.  8 PM38°26%3
  145.  9 PM37°26%3
  146.  10 PM36°26%3
  147.  11 PM35°21%2
  148. Tue 11/312 AM34°21%2
  149.  1 AM33°21%2
  150.  2 AM32°21%2
  151.  3 AM31°21%2
  152.  4 AM30°21%2
  153.  5 AM30°14%2
  154.  6 AM30°14%2
  155.  7 AM30°14%2
  156.  8 AM32°14%3

Temperature °F · chance of precipitation · wind in mph

NWS hourly forecast updated 10/27/2026, 6:42 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: Randall Fire (100 acres)

Drought

By county

Yellowstone County, week of 10/20/2026

8% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:44 AM
Sunset
6:03 PM
Daylight
10 hr 19 min
Moon
Waning Gibbous 95% lit
First light (civil dawn)
7:13 AM
Last light (civil dusk)
6:34 PM
Moonrise
6:28 PM
Moonset
9:51 AM

Normal October weather

Climate

Normal October high 60°, low 34°, precipitation 1.38 in for the month. 1991 to 2020 normals at Hysham, 19 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

Will it rain in Custer, 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 Custer, MT today?
Sunrise is about 7:44 AM MDT and sunset is about 6:03 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Custer, MT?
At Hysham, the 1991 to 2020 normal high in October is 60°F and the normal low is 34°F.

About this data

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