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Observed 12:05 PM MDT at KDLN

Argenta, MT weather

Sunny and 30°−1°, 11°6° colder than a typical Oct 24.

Today: low 26°−3° (likely 21°−6° to 27°−3°), high 40°4° (likely 39°4° to 40°4°).

Forecasts agree

Now 30°−1°

Sunny · Feels like 23°−5°

Feels like
23°−5°
Wind chill from 7 mph11 km/h wind · air 30°−1°
Wind
7 mph11 km/h
From the south. Up to 7 mph11 km/h through 12 AM
Dew point
27°−3°
Dry, static shocks likely
UV index
3Moderate
Moderate until 5 PM · peak 4
Air quality
32Good
Main pollutant: PM2.5 (fine particles)

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Below freezing until 2 PM (low 30°−1°)
  • High 39°4° today at 4 PM
  • Hard freeze tonight 8 PM–11 AM (low 27°−3°)
  • Low 27°−3° tomorrow at 8 AM
  • Below freezing tomorrow night 9 PM–10 AM (low 29°−2°)
  1. This afternoonUp to 39°4° by 4 PM · freezing, low 30°−1° · Clear
  2. TonightDown to 28°−2° by 11 PM · freezing, low 28°−2° · Clear
  3. Tomorrow morningUp to 34°1° by 11 AM · freezing, low 27°−3° · Clear
  4. Tomorrow afternoonUp to 41°5° by 4 PM · Partly cloudy
  5. Tomorrow nightDown to 29°−2° by 4 AM · freezing, low 29°−2° · Mostly cloudy
  6. Monday morningUp to 38°3° by 11 AM · freezing, low 29°−2° · Mostly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 12pSunny30°−1° (likely 30°−1° to 33°1°)23°−5°0%7 mph11 km/h from SSW, gusts 8 mph12 km/h85%11%3
Sat 1pSunny32°0° (likely 32°0° to 36°2°)26°−3°0%7 mph11 km/h from SSW, gusts 8 mph14 km/h85%8%4
Sat 2pSunny35°2° (likely 35°2° to 38°3°)31°−1°0%7 mph11 km/h from SSW, gusts 8 mph12 km/h83%7%4
Sat 3pSunny38°3° (likely 38°3° to 40°4°)34°1°0%6 mph10 km/h from SSW, gusts 7 mph11 km/h79%4%4
Sat 4pSunny39°4° (likely 39°4° to 40°4°)36°2°0%6 mph10 km/h from SSW, gusts 6 mph9 km/h77%7%3
Sat 5pSunny38°3° (likely 38°3° to 40°4°)36°2°0%5 mph8 km/h from S, gusts 6 mph9 km/h77%2%2
Sat 6pSunny37°3° (likely 36°2° to 39°4°)37°3°0%2 mph3 km/h from S, gusts 4 mph6 km/h82%0%1
Sat 7pClear34°1° (likely 31°−1° to 37°3°)34°1°0%2 mph3 km/h from W, gusts 4 mph7 km/h87%0%0
Sat 8pClear30°−1° (likely 30°−1° to 35°2°)30°−1°0%2 mph3 km/h from W, gusts 6 mph9 km/h88%0%0
Sat 9pClear29°−2° (likely 29°−2° to 36°2°)25°−4°0%3 mph5 km/h from W, gusts 6 mph9 km/h85%6%0
Sat 10pClear29°−2° (likely 28°−2° to 35°2°)25°−4°0%3 mph5 km/h from WNW, gusts 6 mph9 km/h85%3%0
Sat 11pClear28°−2° (likely 28°−2° to 35°2°)28°−2°0%3 mph5 km/h from NW, gusts 7 mph11 km/h85%0%0
Sun 12aClear29°−2° (likely 27°−3° to 35°2°)29°−2°0%3 mph5 km/h from NW, gusts 8 mph12 km/h81%0%0
Sun 1aClear29°−2° (likely 27°−3° to 35°2°)29°−2°0%2 mph3 km/h from WNW, gusts 7 mph12 km/h82%0%0
Sun 2aClear28°−2° (likely 27°−3° to 36°2°)28°−2°0%2 mph3 km/h from WNW, gusts 6 mph10 km/h81%0%0
Sun 3aClear29°−2° (likely 27°−3° to 37°3°)29°−2°0%2 mph3 km/h from W, gusts 2 mph4 km/h80%0%0
Sun 4aClear29°−2° (likely 27°−3° to 33°1°)29°−2°0%2 mph3 km/h from W, gusts 3 mph4 km/h81%3%0
Sun 5aClear28°−2° (likely 27°−3° to 35°2°)28°−2°0%2 mph3 km/h from SW, gusts 5 mph8 km/h81%2%0
Sun 6aClear28°−2° (likely 26°−3° to 36°2°)28°−2°0%2 mph3 km/h from SW, gusts 3 mph5 km/h82%0%0
Sun 7aClear28°−2° (likely 27°−3° to 34°1°)28°−2°0%2 mph3 km/h from SSW, gusts 3 mph5 km/h82%3%0
Sun 8aSunny27°−3° (likely 27°−3° to 33°1°)27°−3°0%2 mph3 km/h from NW, gusts 4 mph6 km/h83%6%0
Sun 9aSunny29°−2° (likely 28°−2° to 34°1°)25°−4°0%2 mph3 km/h from WNW, gusts 3 mph5 km/h81%7%0
Sun 10aMostly sunny32°0° (likely 30°−1° to 36°2°)29°−2°0%3 mph5 km/h from ESE, gusts 4 mph6 km/h83%9%1
Sun 11aSunny34°1° (likely 34°1° to 38°3°)31°−1°0%3 mph5 km/h from ESE, gusts 4 mph7 km/h81%22%2
Sun 12pSunny36°2° (likely 36°2° to 40°4°)32°0°0%5 mph8 km/h from E, gusts 6 mph9 km/h79%29%3
Sun 1pMostly sunny38°3° (likely 38°3° to 42°6°)34°1°0%5 mph8 km/h from E, gusts 6 mph9 km/h80%16%4
Sun 2pSunny39°4° (likely 39°4° to 43°6°)36°2°0%5 mph8 km/h from E, gusts 7 mph11 km/h81%35%4
Sun 3pMostly sunny40°4° (likely 40°4° to 45°7°)38°3°0%5 mph8 km/h from E, gusts 7 mph11 km/h78%41%3
Sun 4pMostly sunny41°5° (likely 41°5° to 45°7°)39°4°0%5 mph8 km/h from E, gusts 7 mph11 km/h76%48%3
Sun 5pPartly sunny40°4° (likely 40°4° to 44°7°)38°3°0%5 mph8 km/h from ENE, gusts 6 mph10 km/h78%48%2
Sun 6pMostly cloudy38°3° (likely 37°3° to 42°6°)38°3°0%1 mph2 km/h from NE, gusts 7 mph11 km/h82%54%1
Sun 7pMostly cloudy35°2° (likely 33°1° to 39°4°)35°2°0%1 mph2 km/h from NE, gusts 7 mph11 km/h88%55%0
Sun 8pMostly cloudy33°1° (likely 32°0° to 37°3°)33°1°0%1 mph2 km/h from NE, gusts 4 mph7 km/h90%58%0
Sun 9pMostly cloudy31°−1° (likely 31°−1° to 36°2°)31°−1°0%1 mph2 km/h from NNE, gusts 3 mph5 km/h89%61%0
Sun 10pMostly cloudy30°−1° (likely 30°−1° to 36°2°)30°−1°0%1 mph2 km/h from NNE, gusts 3 mph6 km/h88%65%0
Sun 11pMostly cloudy30°−1° (likely 30°−1° to 35°2°)30°−1°0%1 mph2 km/h from NNE, gusts 3 mph5 km/h87%52%0
Mon 12aMostly cloudy30°−1° (likely 29°−2° to 34°1°)30°−1°0%0 mph0 km/h, gusts 4 mph6 km/h86%55%0
Mon 1aCloudy30°−1° (likely 29°−2° to 34°1°)30°−1°0%0 mph0 km/h, gusts 3 mph5 km/h85%68%0
Mon 2aCloudy30°−1° (likely 30°−1° to 34°1°)30°−1°0%0 mph0 km/h, gusts 3 mph4 km/h85%74%0
Mon 3aCloudy30°−1° (likely 29°−2° to 33°1°)30°−1°0%1 mph2 km/h from SW, gusts 2 mph3 km/h85%78%0
Mon 4aCloudy29°−2° (likely 28°−2° to 33°1°)29°−2°0%1 mph2 km/h from SW, gusts 3 mph5 km/h85%82%0
Mon 5aCloudy29°−2° (likely 28°−2° to 33°1°)29°−2°0%1 mph2 km/h from SW, gusts 3 mph5 km/h86%82%0
Mon 6aCloudy29°−2° (likely 28°−2° to 33°1°)29°−2°0%2 mph3 km/h from SW, gusts 4 mph6 km/h86%90%0
Mon 7aMostly cloudy30°−1° (likely 27°−3° to 32°0°)30°−1°0%2 mph3 km/h from SW, gusts 4 mph6 km/h86%88%0
Mon 8aCloudy31°−1° (likely 27°−3° to 32°0°)31°−1°0%2 mph3 km/h from SW, gusts 4 mph6 km/h85%91%0
Mon 9aMostly cloudy32°0° (likely 29°−2° to 36°2°)29°−2°0%3 mph5 km/h from SSW, gusts 4 mph6 km/h84%77%0
Mon 10aMostly cloudy35°2° (likely 34°1° to 40°4°)32°0°0%3 mph5 km/h from SSW, gusts 4 mph6 km/h83%64%1
Mon 11aCloudy38°3° (likely 37°3° to 42°6°)36°2°0%3 mph5 km/h from SSW, gusts 5 mph9 km/h81%74%2

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Cloudy. High 40°4°, low 26°−3°. Typical 51°11° / 26°−3°. Dry. Forecasts agree.
    1. Afternoon

      noon–6 PM

      Sunny, 39°4°

      Dry

    2. Evening

      6 PM–midnight

      Clear, 30°−1°

      Dry

    3. Overnight

      midnight–6 AM

      Clear, 28°−2°

      Dry

    Official NWS forecast

    Today: Sunny, with a high near 40. South southwest wind around 7 mph.

    Tonight: Mostly clear, with a low around 26. West wind around 3 mph.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    39°4°–40°4°
    Low, likely
    21°−6°–27°−3°
    Typical high / low
    51°11° / 26°−3°
    Wind
    9 mph14 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Mostly sunny. High 42°6°, low 28°−2°. Typical 51°11° / 26°−3°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 27°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 41°5°

      Dry

    3. Evening

      6 PM–midnight

      Mostly cloudy, 33°1°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 29°−2°

      Dry

    Official NWS forecast

    Day: Sunny, with a high near 42. East southeast wind around 5 mph.

    Night: Mostly cloudy, with a low around 28. North wind around 1 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    41°5°–45°7°
    Low, likely
    26°−3°–33°1°
    Typical high / low
    51°11° / 26°−3°
    Wind
    10 mph16 km/h
    UV peak
    4
  3. Monday, Oct 26. Partly sunny. High 46°8°, low 30°−1°. Typical 50°10° / 26°−3°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly cloudy, 31°−1°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 48°9°

      Dry

    3. Evening

      6 PM–midnight

      Drizzle, 40°4°

      40% chance · 0.04 in1.1 mm

    4. Overnight

      midnight–6 AM

      Cloudy, 32°0°

      50% chance · 0.01 in0.3 mm

    Official NWS forecast

    Day: Mostly sunny, with a high near 46. South southwest wind 2 to 7 mph.

    Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. Southwest wind around 7 mph. Chance of precipitation is 50%.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    44°7°–50°10°
    Low, likely
    28°−2°–31°−1°
    Typical high / low
    50°10° / 26°−3°
    Wind
    9 mph15 km/h, gusts 17 mph28 km/h
    UV peak
    3
  4. Tuesday, Oct 27. Snow. High 40°4°, low 26°−3°. Typical 50°10° / 25°−4°. Snow < 1 in< 2 cm, 50% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 31°0°

      40% chance · 0.01 in0.3 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 41°5°

      30% chance

    3. Evening

      6 PM–midnight

      Mostly clear, 34°1°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 26°−4°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of rain and snow. Partly sunny, with a high near 40. Southwest wind around 12 mph, with gusts as high as 21 mph. Little or no snow accumulation expected.

    Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 26. Southwest wind around 8 mph. New snow accumulation of less than half an inch possible.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    38°3°–42°6°
    Low, likely
    25°−4°–31°−1°
    Typical high / low
    50°10° / 25°−4°
    Wind
    15 mph24 km/h, gusts 29 mph47 km/h
    UV peak
    3
  5. Wednesday, Oct 28. Partly sunny. High 41°5°, low 27°−3°. Typical 50°10° / 25°−4°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 25°−4°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 42°5°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 33°0°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 28°−2°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 41.

    Night: Partly cloudy, with a low around 27.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    39°4°–43°6°
    Low, likely
    19°−7°–30°−1°
    Typical high / low
    50°10° / 25°−4°
    Wind
    19 mph31 km/h, gusts 35 mph56 km/h
    UV peak
    4
  6. Thursday, Oct 29. Partly sunny. High 42°6°, low 28°−2°. Typical 49°9° / 25°−4°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 29°−2°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 44°7°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 37°3°

      20% chance · 0.03 in0.8 mm

    4. Overnight

      midnight–6 AM

      Fog, 29°−2°

      30% chance · 0.03 in0.8 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 42.

    Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 28.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    41°5°–45°7°
    Low, likely
    24°−4°–30°−1°
    Typical high / low
    49°9° / 25°−4°
    Wind
    12 mph19 km/h, gusts 25 mph40 km/h
    UV peak
    3
  7. Friday, Oct 30. Snow. High 43°6°, low 29°−2°. Typical 49°9° / 24°−4°. Snow < 1 in< 2 cm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Fog, 29°−2°

      30% chance · 0.02 in0.5 mm

    2. Afternoon

      noon–6 PM

      Snow, 39°4°

      30% chance · 0.03 in0.6 mm

    3. Evening

      6 PM–midnight

      Drizzle, 32°0°

      30% chance · 0.05 in1.1 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 25°−4°

      30% chance · 0.01 in0.3 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A slight chance of snow. Partly sunny, with a high near 43.

    Night: A chance of snow. Partly cloudy, with a low around 29.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    35°2°–43°6°
    Low, likely
    18°−8°–32°0°
    Typical high / low
    49°9° / 24°−4°
    Wind
    6 mph10 km/h, gusts 18 mph29 km/h
    UV peak
    2
  8. Saturday, Oct 31. Drizzle. High 34°1°, low 20°−7°. Typical 48°9° / 24°−4°. Rain 0.02 in0.5 mm, 30% chance. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 24°−4°

      20% chance · 0.01 in0.3 mm

    2. Afternoon

      noon–6 PM

      Mostly sunny, 34°1°

      20% chance

    3. Evening

      6 PM–midnight

      Clear, 26°−3°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 19°−7°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    32°0°–35°2°
    Low, likely
    11°−12°–27°−3°
    Typical high / low
    48°9° / 24°−4°
    Wind
    18 mph28 km/h
    UV peak
    3
  9. Sunday, Nov 1. Cloudy. High 39°4°, low 19°−7°. Typical 48°9° / 24°−4°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly sunny, 20°−7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 40°4°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 32°0°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 27°−3°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    35°2°–44°7°
    Low, likely
    11°−12°–24°−4°
    Typical high / low
    48°9° / 24°−4°
    Wind
    11 mph17 km/h, gusts 18 mph29 km/h
    UV peak
    3
  10. Monday, Nov 2. Snow. High 38°3°, low 26°−3°. Typical 47°8° / 24°−4°. Snow 0–1 in0–3 cm, 10% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 30°−1°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 38°3°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 30°−1°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    32°0°–44°7°
    Low, likely
    24°−4°–27°−3°
    Typical high / low
    47°8° / 24°−4°
    Wind
    17 mph27 km/h, gusts 37 mph59 km/h
    UV peak
    2

The outlook

  1. Today

    Dry, high 40°, low 26°.

  2. Tomorrow

    Dry, high 42°, low 28°.

  3. Monday

    Dry, high 46°, low 30°, warming up.

  4. Rest of week

    Highs 34–43°; chance of precipitation on Tuesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Beaverhead River at Dillon

11 mi
Level
3.7 ft

Reading from Sat 10:15 AM · NWS gauge page

Big Hole River near Glen

19 mi
Level
2.8 ft

Reading from Sat 10:30 AM · NWS gauge page

Big Hole River near Melrose

19 mi
Below flood stage
Level
2.1 ft
Flow
590 cfs

Reading from Sat 10:15 AM · NWS gauge page

Beaverhead River at Clark Canyon Dam near Dillon

19 mi
Below flood stage
Level
5518 ft

Reading from Sat 10 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 67% less heating than a typical week.

This week 64Typical 192

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
47
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at. About 39 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 27°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Dillon Airport · official normals 1991–2020 · records 1940–2026

Oct 24, today vs a typical year

Today’s expected high is 11°6° colder than typical.

Normal high / low
51°11° / 26°−3°
Forecast high / low
40°4° / 26°−3°
Record high
73°23° in 2007
Record low
5°−15° in 2020

Last 7 days vs normal

On average 11°6° warmer than normal (daily mean temperature).

  1. +11°+6°SunOct 18
  2. +13°+7°MonOct 19
  3. +11°+6°TueOct 20
  4. +12°+6°WedOct 21
  5. +14°+8°ThuOct 22
  6. +4°+2°FriOct 23
  7. —SatOct 24

Argenta weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:59 AM, sunset 6:30 PM.

Daylight
10 h 31 min
Losing 2 min 53 s a day; shortest Dec 21, 1 h 47 min less
Golden hour
5:49–6:49 PM
Morning 7:41–8:41 AM
Blue hour
6:49–7:01 PM
Morning 7:29–7:41 AM; first light 7:29 AM

Stars tonight? Fair

Clear 7:01 PM–7:30 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today
sets 6:15 AM · rises 5:31 PM
Full moon
Oct 25
New moon
Nov 9
Looking northwest from Argenta. The highest point on the skyline is about 10,500 ft, 10 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.