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

Molt W (MTM20)

Lat: 45.82°NLon: 109.09°WElev: 4160.0ft.

NA

55°F

13°C

Humidity 63%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 17 Jun 11:00 PM MDT
Extended Forecast for

Columbus MT

  • Overnight

    Overnight: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80. Light and variable wind becoming north 13 to 18 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. North northeast wind 13 to 18 mph becoming light north  in the evening.

    Low: 45 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 79. Light east wind increasing to 6 to 11 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. East wind 9 to 14 mph becoming light and variable  after midnight.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.

    High: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 50. West wind 3 to 7 mph.  Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. West northwest wind 6 to 9 mph becoming north in the afternoon.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 47. Northeast wind 5 to 10 mph becoming light north  after midnight.  Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 80. Light and variable wind becoming north 13 to 18 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 45. North northeast wind 13 to 18 mph becoming light north in the evening.
Juneteenth
Mostly sunny, with a high near 79. Light east wind increasing to 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 49. East wind 9 to 14 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. West wind 3 to 7 mph. Chance of precipitation is 50%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. West northwest wind 6 to 9 mph becoming north in the afternoon.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 47. Northeast wind 5 to 10 mph becoming light north after midnight. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 74. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 45. Northeast wind 5 to 9 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 82. Calm wind becoming east 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 50. East wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Columbus MT
 45.63°N 109.24°W (Elev. 3599 ft)
12:53 am MDT Jun 18, 2026
1am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
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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