Skip to content

Checked

Sun River, MT 59487 Weather

Today: Widespread Fog then Partly Sunny, high 41°F, low 28°F. Hourly and 10-day forecast from the National Weather Service. Times are local (MDT).

Sun River, MT 59487 current weather

31°F

Widespread Fog

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

H 41° / L 28°

No recent station report. NWS hourly forecast updated 10/29/2026, 2:31 AM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Hourly forecast

NWS, updated 10/29/2026, 2:31 AM PT

  1. Now31°
  2. 11 AM33°
  3. 12 PM34°
  4. 1 PM35°
  5. 2 PM38°
  6. 3 PM39°
  7. 4 PM39°
  8. 5 PM40°
  9. 6 PM37°
  10. 7 PM36°
  11. 8 PM34°
  12. 9 PM31°
  13. 10 PM31°
  14. 11 PM30°
  15. 12 AM29°Fri
  16. 1 AM30°
  17. 2 AM30°
  18. 3 AM30°
  19. 4 AM30°
  20. 5 AM30°
  21. 6 AM29°
  22. 7 AM30°
  23. 8 AM29°
  24. 9 AM30°
  25. 10 AM31°
  26. 11 AM33°
  27. 12 PM33°
  28. 1 PM35°
  29. 2 PM38°
  30. 3 PM39°
  31. 4 PM39°
  32. 5 PM40°
  33. 6 PM39°
  34. 7 PM37°
  35. 8 PM35°
  36. 9 PM33°
  37. 10 PM32°
  38. 11 PM31°
  39. 12 AM30°Sat
  40. 1 AM29°
  41. 2 AM29°
  42. 3 AM29°
  43. 4 AM29°
  44. 5 AM28°
  45. 6 AM28°
  46. 7 AM28°
  47. 8 AM28°
  48. 9 AM29°

10-day forecast

Tap a day for details

  • Today10/29Low 28°High 41°

    Today: Widespread fog before noon. Partly sunny, with a high near 41. Northeast wind 3 to 9 mph.

    Tonight: Cloudy, with a low around 28. North northeast wind 2 to 8 mph.

    Widespread Fog then Partly Sunny
  • Fri10/30Low 28°High 41°

    Friday: Mostly cloudy, with a high near 41. Northeast wind around 3 mph.

    Friday Night: Mostly cloudy, with a low around 28. Northwest wind around 3 mph.

    Mostly Cloudy
  • Sat10/3151% chance of precipitationLow 33°High 54°

    Saturday: Mostly sunny, with a high near 54. South southwest wind around 3 mph.

    Saturday Night: A chance of rain after midnight. Mostly cloudy, with a low around 33. North wind around 3 mph. Chance of precipitation is 50%.

    Mostly Sunny
  • Sun11/171% chance of precipitationLow 30°High 45°

    Sunday: Rain likely. Mostly cloudy, with a high near 45. Northwest wind 2 to 7 mph.

    Sunday Night: A chance of rain before 5am. Mostly cloudy, with a low around 30. West northwest wind 5 to 8 mph.

    Light Rain Likely
  • Mon11/213% chance of precipitationLow 31°High 49°

    Monday: Mostly sunny, with a high near 49.

    Monday Night: Partly cloudy, with a low around 31.

    Mostly Sunny
  • Tue11/3Low 29°High 53°

    Tuesday: Partly sunny, with a high near 53.

    Tuesday Night: Mostly cloudy, with a low around 29.

    Partly Sunny
  • Wed11/4Low 28°High 47°

    Wednesday: Mostly sunny, with a high near 47.

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

    Mostly Sunny
  • Thu11/5Model blendLow 31°High 51°

    Thursday: Partly cloudy. High near 51°. Low that night near 31°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blendLow 29°High 49°

    Friday: Partly cloudy. High near 49°. Low that night near 29°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blendLow 29°High 47°

    Saturday: Partly cloudy. High near 47°. Low that night near 29°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 47.586, -111.644 from the NWS TFX office, updated 10/29/2026, 2:31 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KGTF (Great Falls Intl, 14 mi), model run 10/29/2026, 8:00 AM MDT

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. Now31°Widespread Fog0%3 mph
  2. 11 AM33°Widespread Fog0%3 mph
  3. 12 PM34°Partly Sunny0%3 mph
  4. 1 PM35°Partly Sunny0%5 mph
  5. 2 PM38°Mostly Sunny0%6 mph
  6. 3 PM39°Mostly Sunny0%8 mph

Hourly details

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

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the high temperature today in Sun River, MT 59487?
The National Weather Service forecast for today calls for a high near 41°F. Widespread Fog then Partly Sunny.
Will it rain in Sun River, MT 59487 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 is the 10-day forecast for Sun River, MT 59487?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 47°F to 51°F. Model guidance this far out often changes.
What time is sunrise and sunset in Sun River, MT 59487 today?
Sunrise is about 8:06 AM MDT and sunset is about 6:13 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Sun River, MT 59487?
At Sun Rvr 4 S, the 1991 to 2020 normal high in October is 58°F and the normal low is 31°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

Cascade County, week of 10/27/2026

2% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
8:06 AM
Sunset
6:13 PM
Daylight
10 hr 7 min
Moon
Waning Gibbous 87% lit
First light (civil dawn)
7:34 AM
Last light (civil dusk)
6:45 PM
Moonrise
8:22 PM
Moonset
12:49 PM

Normal October weather

Climate

Normal October high 58°, low 31°, precipitation 0.90 in for the month. 1991 to 2020 normals at Sun Rvr 4 S, 9 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

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.

Forecasts, observations and alerts come from the National Weather Service (api.weather.gov). Data can be delayed by minutes to hours, and an observation station may be miles from the place named on this page. This site is not affiliated with NOAA or the National Weather Service.

DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.

Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.

Report an errorRead the full disclaimer