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Westby, MT Weather

It is 35°F in Westby, MT, observed at 10 PM MDT. Tonight: Cloudy, low 33°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).

Westby, MT current weather

35°F

Mostly Cloudy

H -- / L 33°Feels like 29°

  • No rain expected in the next 12 hours

Observed at Comertown Turn-Off MT-5 MP 13.4 (9.9 mi away), 10/30/2026, 10:00 PM MDT

Hourly forecast

NWS, updated 10/30/2026, 7:51 PM PT

  1. Now33°
  2. 11 PM33°
  3. 12 AM33°Sat
  4. 1 AM34°
  5. 2 AM34°
  6. 3 AM34°12%
  7. 4 AM35°
  8. 5 AM34°
  9. 6 AM35°
  10. 7 AM35°
  11. 8 AM36°
  12. 9 AM40°
  13. 10 AM44°
  14. 11 AM46°14%
  15. 12 PM48°16%
  16. 1 PM50°11%
  17. 2 PM51°
  18. 3 PM52°
  19. 4 PM52°
  20. 5 PM51°14%
  21. 6 PM48°30%
  22. 7 PM47°35%
  23. 8 PM46°37%
  24. 9 PM45°45%
  25. 10 PM45°43%
  26. 11 PM45°32%
  27. 12 AM45°52%Sun
  28. 1 AM45°64%
  29. 1 AM45°64%
  30. 2 AM44°25%
  31. 3 AM44°
  32. 4 AM44°
  33. 5 AM42°10%
  34. 6 AM43°10%
  35. 7 AM44°10%
  36. 8 AM46°10%
  37. 9 AM48°10%
  38. 10 AM50°10%
  39. 11 AM52°
  40. 12 PM53°
  41. 1 PM54°
  42. 2 PM55°
  43. 3 PM54°
  44. 4 PM53°
  45. 5 PM51°22%
  46. 6 PM50°22%
  47. 7 PM49°22%
  48. 8 PM48°22%

7-day forecast

Tap a day for details

  • Today10/3012% chance of precipitationLow 33°High

    Tonight: Cloudy. Low around 33, with temperatures rising to around 35 overnight. East wind around 9 mph.

    Cloudy
  • Sat10/3164% chance of precipitationLow 41°High 52°

    Saturday: A slight chance of rain between 1pm and 2pm. Cloudy, with a high near 52. East wind 6 to 9 mph. Chance of precipitation is 20%.

    Saturday Night: Rain likely between 7pm and 4am. Cloudy. Low around 41, with temperatures rising to around 44 overnight. East wind 3 to 8 mph. Chance of precipitation is 60%.

    Cloudy then Slight Chance Light Rain
  • Sun11/166% chance of precipitationLow 41°High 55°

    Sunday: Cloudy, with a high near 55. Northeast wind 3 to 7 mph.

    Sunday Night: Rain likely. Cloudy, with a low around 41. Northeast wind around 9 mph. Chance of precipitation is 70%.

    Cloudy
  • Mon11/272% chance of precipitationLow 29°High 49°

    Monday: Rain likely. Cloudy, with a high near 49. North wind 14 to 22 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    Monday Night: A chance of rain before midnight. Mostly cloudy, with a low around 29. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.

    Light Rain Likely
  • Tue11/311% chance of precipitationLow 30°High 50°

    Tuesday: Mostly sunny, with a high near 50. West wind 7 to 12 mph, with gusts as high as 20 mph.

    Tuesday Night: Mostly cloudy, with a low around 30. West wind around 8 mph.

    Mostly Sunny
  • Wed11/4Low 26°High 47°

    Wednesday: Mostly sunny, with a high near 47. Northwest wind 5 to 9 mph.

    Wednesday Night: Partly cloudy, with a low around 26. North wind around 6 mph.

    Mostly Sunny
  • Thu11/5Low 28°High 47°

    Thursday: Mostly sunny, with a high near 47. Southeast wind 3 to 10 mph.

    Thursday Night: Partly cloudy, with a low around 28. Southeast wind around 8 mph.

    Mostly Sunny
  • Fri11/6Low High 48°

    Friday: Mostly sunny, with a high near 48.

    Mostly Sunny

Forecast for 48.871, -104.055 from the NWS GGW office, updated 10/30/2026, 7:51 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. Now33°Mostly Cloudy3%9 mph
  2. 11 PM33°Mostly Cloudy4%9 mph
  3. 12 AM33°Cloudy7%8 mph
  4. 1 AM34°Cloudy7%8 mph
  5. 2 AM34°Cloudy7%7 mph
  6. 3 AM34°Mostly Cloudy12%7 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Westby, MT right now?
The latest observation from Comertown Turn-Off MT-5 MP 13.4 was 35°F, reported at 10/30/2026, 10:00 PM MDT.
Will it rain in Westby, 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 Westby, MT today?
Sunrise is about 7:40 AM MDT and sunset is about 5:39 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Westby, MT?
At Westby, the 1991 to 2020 normal high in October is 54°F and the normal low is 29°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.48 in
Snow
0.00 in
Ice
0.00 in

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

Sheridan County, week of 10/27/2026

9% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
7:40 AM
Sunset
5:39 PM
Daylight
9 hr 58 min
Moon
Waning Gibbous 74% lit
First light (civil dawn)
7:07 AM
Last light (civil dusk)
6:11 PM
Moonrise
8:56 PM
Moonset
1:23 PM

Normal October weather

Climate

Normal October high 54°, low 29°, precipitation 0.97 in for the month. 1991 to 2020 normals at Westby, 0 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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