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Harrison, MT Weather

Today: Sunny, high 47°F, low 26°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).

Harrison, MT current weather

45°F

Sunny

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

H 47° / L 26°

  • No rain expected in the next 12 hours

No recent station report. NWS hourly forecast updated 10/28/2026, 11:31 AM PT

Hourly forecast

NWS, updated 10/28/2026, 11:31 AM PT

  1. Now45°
  2. 5 PM43°
  3. 6 PM42°
  4. 7 PM38°
  5. 8 PM34°
  6. 9 PM32°
  7. 10 PM31°
  8. 11 PM30°
  9. 12 AM29°Thu
  10. 1 AM28°
  11. 2 AM29°
  12. 3 AM28°
  13. 4 AM27°
  14. 5 AM28°
  15. 6 AM28°
  16. 7 AM26°
  17. 8 AM26°
  18. 9 AM27°
  19. 10 AM31°
  20. 11 AM34°
  21. 12 PM37°
  22. 1 PM41°
  23. 2 PM42°
  24. 3 PM43°
  25. 4 PM44°
  26. 5 PM43°
  27. 6 PM42°
  28. 7 PM39°
  29. 8 PM36°
  30. 9 PM35°
  31. 10 PM34°
  32. 11 PM34°
  33. 12 AM33°Fri
  34. 1 AM32°
  35. 2 AM31°
  36. 3 AM30°
  37. 4 AM30°
  38. 5 AM30°
  39. 6 AM29°11%
  40. 7 AM29°11%
  41. 8 AM29°11%
  42. 9 AM30°11%
  43. 10 AM31°11%
  44. 11 AM33°11%
  45. 12 PM35°
  46. 1 PM37°
  47. 2 PM40°
  48. 3 PM42°

7-day forecast

Tap a day for details

  • Today10/28Low 26°High 47°

    This Afternoon: Sunny. High near 47, with temperatures falling to around 43 in the afternoon. South southwest wind around 9 mph, with gusts as high as 22 mph.

    Tonight: Partly cloudy, with a low around 26. Southwest wind 2 to 10 mph, with gusts as high as 22 mph.

    Sunny
  • Thu10/29Low 29°High 45°

    Thursday: Patchy fog between 7am and 10am. Mostly sunny, with a high near 45. North wind around 1 mph.

    Thursday Night: Mostly cloudy, with a low around 29. Wind around 0 mph.

    Patchy Fog then Mostly Sunny
  • Fri10/3015% chance of precipitationLow 33°High 44°

    Friday: Partly sunny, with a high near 44. Wind around 0 mph.

    Friday Night: A slight chance of rain before midnight. Partly cloudy, with a low around 33. Wind around 0 mph. Chance of precipitation is 20%.

    Partly Sunny
  • Sat10/3169% chance of precipitationLow 35°High 47°

    Saturday: A chance of rain and snow. Partly sunny, with a high near 47. Wind around 0 mph.

    Saturday Night: Rain likely. Mostly cloudy, with a low around 35. Wind around 0 mph.

    Chance Rain And Snow
  • Sun11/175% chance of precipitationLow 29°High 42°

    Sunday: Rain likely before 8am, then rain and snow. Mostly cloudy, with a high near 42.

    Sunday Night: Rain and snow likely. Mostly cloudy, with a low around 29. Little or no snow accumulation expected.

    Rain And Snow
  • Mon11/235% chance of precipitationLow 28°High 39°

    Monday: A chance of rain and snow before 5pm. Mostly sunny, with a high near 39.

    Monday Night: Partly cloudy, with a low around 28.

    Chance Rain And Snow
  • Tue11/312% chance of precipitationLow 27°High 44°

    Tuesday: Mostly sunny, with a high near 44.

    Tuesday Night: Partly cloudy, with a low around 27.

    Mostly Sunny

Forecast for 45.704, -111.785 from the NWS TFX office, updated 10/28/2026, 11:31 AM 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. Now45°Sunny0%9 mph
  2. 5 PM43°Sunny0%9 mph
  3. 6 PM42°Mostly Clear0%8 mph
  4. 7 PM38°Mostly Clear0%9 mph
  5. 8 PM34°Mostly Clear0%10 mph
  6. 9 PM32°Mostly Clear0%9 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 (last 50 min) and GOES

Latest

Frequently asked questions

What is the high temperature today in Harrison, MT?
The National Weather Service forecast for this afternoon calls for a high near 47°F. Sunny.
Will it rain in Harrison, 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 Harrison, MT today?
Sunrise is about 8:01 AM MDT and sunset is about 6:19 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Harrison, MT?
At Norris Madison Pwr House, the 1991 to 2020 normal high in October is 60°F and the normal low is 39°F.

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

Madison County, week of 10/20/2026

11% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
8:01 AM
Sunset
6:19 PM
Daylight
10 hr 18 min
Moon
Waning Gibbous 91% lit
First light (civil dawn)
7:31 AM
Last light (civil dusk)
6:50 PM
Moonrise
7:33 PM
Moonset
11:26 AM

Normal October weather

Climate

Normal October high 60°, low 39°, precipitation 1.69 in for the month. 1991 to 2020 normals at Norris Madison Pwr House, 17 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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