Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

NA

48°F

9°C

Humidity 66%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 17 Jun 11:39 PM MDT
Extended Forecast for

20 Miles E Emigrant MT

  • Overnight

    Overnight: Partly cloudy, with a low around 34. West wind 5 to 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 59. West northwest wind 7 to 17 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. North northwest wind 6 to 14 mph becoming east after midnight.

    Low: 35 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 64. Southeast wind 6 to 14 mph becoming northwest in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. North wind 7 to 14 mph becoming south southeast after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 60. South southwest wind 7 to 11 mph becoming west northwest in the afternoon.  Chance of precipitation is 90%.

    High: 60 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a slight chance of showers.  Low around 40. Southwest wind 6 to 10 mph.  Chance of precipitation is 80%.

    Low: 40 °F

    Showers then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 58. Southwest wind 5 to 14 mph becoming northwest in the afternoon.  Chance of precipitation is 60%.

    High: 58 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 37. North northwest wind 5 to 13 mph becoming south after midnight.  Chance of precipitation is 40%.

    Low: 37 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. West wind 5 to 7 mph.
Thursday
Sunny, with a high near 59. West northwest wind 7 to 17 mph.
Thursday Night
Partly cloudy, with a low around 35. North northwest wind 6 to 14 mph becoming east after midnight.
Juneteenth
Mostly sunny, with a high near 64. Southeast wind 6 to 14 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 44. North wind 7 to 14 mph becoming south southeast after midnight.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 60. South southwest wind 7 to 11 mph becoming west northwest in the afternoon. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 40. Southwest wind 6 to 10 mph. Chance of precipitation is 80%.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 58. Southwest wind 5 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 37. North northwest wind 5 to 13 mph becoming south after midnight. Chance of precipitation is 40%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 57. Light and variable wind becoming north northwest 9 to 14 mph in the morning. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 36. North wind 6 to 14 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 64. South wind 6 to 14 mph becoming northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 41. North northwest wind 7 to 14 mph becoming south southeast in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 67. South wind 8 to 15 mph becoming west in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles E Emigrant MT
 45.38°N 110.33°W (Elev. 8599 ft)
12:37 pm MDT Jun 17, 2026
12am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
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Additional Resources

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National Digital Forecast Database