National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Monarch Canyon US-89 MP 53.5 (MTMON)

Lat: 47.1429°NLon: 110.82309°WElev: 5197.0ft.

NA

53°F

12°C

Humidity 65%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 18 Sep 12:00 AM MDT
Extended Forecast for

9 Miles NNE Neihart MT

Flash Flood Watch September 18, 06:00pm until September 20, 12:00am
Click here for hazard details and duration
Flash Flood Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 50. Light west southwest wind.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 65. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 3am, then rain likely after 3am. Cloudy, with a low around 48. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Rain, mainly before 3pm, then showers and possibly a thunderstorm after 3pm. High near 53. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 53 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 47. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 63. Calm wind becoming north around 6 mph in the afternoon.

    High: 63 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. North northeast wind around 6 mph becoming south southwest after midnight.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. South southwest wind around 6 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. Light west southwest wind.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 65. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 3am, then rain likely after 3am. Cloudy, with a low around 48. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain, mainly before 3pm, then showers and possibly a thunderstorm after 3pm. High near 53. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 47. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 63. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 46. North northeast wind around 6 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 68. South southwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNE Neihart MT
 47.06°N 110.64°W (Elev. 5600 ft)
Last Update:
10:51 pm MDT Sep 17, 2026
Forecast Valid:
12am MDT Sep 18, 2026-6pm MDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation