Skip to forecast
Search a place

Observed 7:03 AM MDT at KBZN

Sedan, MT weather

Foggy and 26°−3°, 10°6° colder than a typical Oct 24, freeze watch tonight, low 20°−7°.

Today: low 23°−5° (likely 18°−8° to 25°−4°), high 41°5° (likely 38°3° to 43°6°).

Mostly agree

Now 26°−3°

Fog · Feels like 22°−6°

Wind
3 mph5 km/h
Light through 7 PM
Visibility
1.8 mi2.9 km
Fog · under 3 mi5 km
Dew point
26°−3°
Dry · down to 17°−8° by 8 AM
Humidity
100%
Air 26°−3°, dew point 26°−3° · frost likely
UV index
0Low
Moderate 12–4 PM · peak 3
Pressure
30.38 inHg1029 hPa
Steady over the last 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

21°12° cooler than this time yesterday (48°9° then, 27°−3° now)

Good hours for
  • Hard freeze until 1 PM (low 20°−7°)
  • Above 30°−1° today by 11 AM
  • Hard freeze tonight 7 PM–11 AM (low 23°−5°)
  • Below 30°−1° tonight after 8 PM
  • Hard freeze tomorrow night from 7 PM (low 23°−5°)
  1. This morningUp to 31°−1° by 11 AM · freezing, low 20°−7° · Clear
  2. This afternoonUp to 40°4° by 3 PM · freezing, low 32°0° · Clear
  3. TonightDown to 24°−4° by 5 AM · freezing, low 24°−4° · Clear
  4. Tomorrow morningUp to 33°1° by 11 AM · freezing, low 23°−5° · Clear
  5. Tomorrow afternoonUp to 42°6° by 3 PM · Clear
  6. Tomorrow nightDown to 23°−5° by 4 AM · freezing, low 23°−5° · Clear
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 7aPartly cloudy20°−7° (likely 19°−7° to 26°−3°)20°−7°0%0 mph0 km/h, gusts 3 mph5 km/h86%19%0
Sat 8aSunny20°−7° (likely 19°−7° to 26°−3°)20°−7°0%0 mph0 km/h, gusts 3 mph5 km/h87%14%0
Sat 9aSunny22°−6° (likely 20°−7° to 27°−3°)22°−6°0%0 mph0 km/h, gusts 4 mph6 km/h79%1%0
Sat 10aSunny28°−2° (likely 25°−4° to 30°−1°)28°−2°0%0 mph0 km/h, gusts 4 mph6 km/h73%0%1
Sat 11aSunny31°−1° (likely 28°−2° to 33°1°)31°−1°0%0 mph0 km/h, gusts 5 mph7 km/h68%6%2
Sat 12pSunny32°0° (likely 32°0° to 36°2°)32°0°0%0 mph0 km/h, gusts 6 mph9 km/h63%7%3
Sat 1pSunny38°3° (likely 35°2° to 39°4°)38°3°0%0 mph0 km/h, gusts 7 mph11 km/h55%7%3
Sat 2pSunny39°4° (likely 37°3° to 42°6°)39°4°0%0 mph0 km/h, gusts 7 mph12 km/h53%6%3
Sat 3pSunny40°4° (likely 38°3° to 43°6°)40°4°0%0 mph0 km/h, gusts 7 mph11 km/h50%0%3
Sat 4pSunny39°4° (likely 38°3° to 42°6°)39°4°0%0 mph0 km/h, gusts 7 mph11 km/h52%1%1
Sat 5pSunny37°3° (likely 37°3° to 42°6°)37°3°0%0 mph0 km/h, gusts 6 mph9 km/h55%0%1
Sat 6pClear35°2° (likely 34°1° to 39°4°)35°2°0%0 mph0 km/h, gusts 5 mph8 km/h62%0%1
Sat 7pClear31°−1° (likely 31°−1° to 35°2°)31°−1°0%0 mph0 km/h, gusts 6 mph10 km/h67%0%0
Sat 8pClear29°−2° (likely 29°−2° to 34°1°)29°−2°0%0 mph0 km/h, gusts 6 mph9 km/h67%0%0
Sat 9pClear28°−2° (likely 28°−2° to 34°1°)28°−2°0%1 mph2 km/h from S, gusts 4 mph7 km/h70%1%0
Sat 10pClear28°−2° (likely 28°−2° to 34°1°)28°−2°0%0 mph0 km/h, gusts 5 mph9 km/h69%1%0
Sat 11pClear28°−2° (likely 28°−2° to 34°1°)28°−2°0%0 mph0 km/h, gusts 5 mph8 km/h67%4%0
Sun 12aClear28°−2° (likely 27°−3° to 34°1°)28°−2°0%0 mph0 km/h, gusts 5 mph8 km/h67%5%0
Sun 1aClear26°−3° (likely 26°−3° to 34°1°)26°−3°0%0 mph0 km/h, gusts 4 mph7 km/h74%2%0
Sun 2aClear25°−4° (likely 25°−4° to 33°1°)25°−4°0%0 mph0 km/h, gusts 4 mph6 km/h78%1%0
Sun 3aClear25°−4° (likely 25°−4° to 33°1°)25°−4°0%0 mph0 km/h, gusts 3 mph4 km/h76%1%0
Sun 4aClear25°−4° (likely 25°−4° to 33°1°)25°−4°0%0 mph0 km/h, gusts 3 mph4 km/h77%0%0
Sun 5aClear24°−4° (likely 24°−4° to 32°0°)24°−4°0%0 mph0 km/h, gusts 4 mph6 km/h76%1%0
Sun 6aClear24°−4° (likely 24°−4° to 32°0°)24°−4°0%0 mph0 km/h, gusts 5 mph8 km/h78%3%0
Sun 7aMostly clear24°−4° (likely 24°−4° to 32°0°)24°−4°0%0 mph0 km/h, gusts 5 mph8 km/h75%38%0
Sun 8aMostly sunny23°−5° (likely 23°−5° to 32°0°)23°−5°0%0 mph0 km/h, gusts 6 mph9 km/h76%25%0
Sun 9aSunny25°−4° (likely 25°−4° to 33°1°)25°−4°0%1 mph2 km/h from ESE, gusts 7 mph11 km/h75%4%0
Sun 10aSunny29°−2° (likely 29°−2° to 36°2°)29°−2°0%1 mph2 km/h from ESE, gusts 8 mph14 km/h72%6%1
Sun 11aSunny33°1° (likely 33°1° to 39°4°)33°1°0%1 mph2 km/h from ESE, gusts 12 mph20 km/h68%5%2
Sun 12pSunny37°3° (likely 37°3° to 43°6°)34°1°0%3 mph5 km/h from ESE, gusts 17 mph27 km/h58%10%3
Sun 1pSunny40°4° (likely 39°4° to 45°7°)38°3°0%3 mph5 km/h from ESE, gusts 17 mph28 km/h53%8%4
Sun 2pSunny41°5° (likely 41°5° to 45°7°)39°4°0%3 mph5 km/h from ESE, gusts 18 mph30 km/h52%2%4
Sun 3pSunny42°6° (likely 41°5° to 47°8°)39°4°0%5 mph8 km/h from SE, gusts 17 mph27 km/h50%0%3
Sun 4pSunny40°4° (likely 40°4° to 48°9°)37°3°0%5 mph8 km/h from SE, gusts 18 mph29 km/h52%0%3
Sun 5pSunny38°3° (likely 38°3° to 46°8°)34°1°0%5 mph8 km/h from SE, gusts 18 mph29 km/h55%5%1
Sun 6pClear36°2° (likely 35°2° to 42°6°)30°−1°0%7 mph11 km/h from SE, gusts 20 mph32 km/h59%14%0
Sun 7pClear31°−1° (likely 31°−1° to 37°3°)24°−4°0%7 mph11 km/h from SE, gusts 14 mph23 km/h65%16%0
Sun 8pPartly cloudy29°−2° (likely 29°−2° to 35°2°)22°−6°0%7 mph11 km/h from SE, gusts 15 mph24 km/h69%25%0
Sun 9pClear28°−2° (likely 28°−2° to 34°1°)19°−7°0%10 mph16 km/h from ESE, gusts 14 mph23 km/h71%41%0
Sun 10pClear27°−3° (likely 27°−3° to 34°1°)17°−8°0%10 mph16 km/h from ESE, gusts 13 mph21 km/h72%37%0
Sun 11pClear27°−3° (likely 27°−3° to 33°1°)17°−8°0%10 mph16 km/h from ESE, gusts 13 mph21 km/h71%32%0
Mon 12aClear27°−3° (likely 27°−3° to 32°0°)22°−6°0%5 mph8 km/h from ESE, gusts 13 mph21 km/h72%30%0
Mon 1aPartly cloudy26°−3° (likely 26°−3° to 32°0°)20°−7°0%5 mph8 km/h from ESE, gusts 13 mph21 km/h75%13%0
Mon 2aPartly cloudy25°−4° (likely 25°−4° to 32°0°)19°−7°0%5 mph8 km/h from ESE, gusts 11 mph17 km/h80%16%0
Mon 3aPartly cloudy24°−4° (likely 24°−4° to 32°0°)20°−7°0%3 mph5 km/h from ESE, gusts 8 mph13 km/h83%16%0
Mon 4aPartly cloudy23°−5° (likely 23°−5° to 32°0°)18°−8°0%3 mph5 km/h from ESE, gusts 8 mph13 km/h84%23%0
Mon 5aPartly cloudy23°−5° (likely 23°−5° to 31°−1°)18°−8°0%3 mph5 km/h from ESE, gusts 8 mph13 km/h84%22%0
Mon 6aClear23°−5° (likely 23°−5° to 31°−1°)23°−5°0%2 mph3 km/h from ESE, gusts 8 mph12 km/h83%15%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Mostly sunny. High 41°5°, low 23°−5°. Typical 51°11° / 26°−3°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 20°−7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 40°4°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 29°−2°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 24°−4°

      Dry

    Official NWS forecast

    Today: Sunny. High near 41, with temperatures falling to around 37 in the afternoon. Wind around 0 mph.

    Tonight: Mostly clear, with a low around 23. East southeast wind around 1 mph.

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

    High, likely
    38°3°–43°6°
    Low, likely
    18°−8°–25°−4°
    Typical high / low
    51°11° / 26°−3°
    Wind
    7 mph11 km/h, gusts 21 mph34 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Mostly sunny. High 43°6°, low 22°−6°. Typical 51°11° / 26°−3°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 23°−5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 42°6°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 29°−2°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 23°−5°

      Dry

    Official NWS forecast

    Day: Sunny. High near 43, with temperatures falling to around 38 in the afternoon. Southeast wind 0 to 5 mph.

    Night: Partly cloudy, with a low around 22. East southeast wind 3 to 10 mph, with gusts as high as 23 mph.

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

    High, likely
    41°5°–48°9°
    Low, likely
    22°−6°–32°0°
    Typical high / low
    51°11° / 26°−3°
    Wind
    10 mph16 km/h, gusts 35 mph56 km/h
    UV peak
    4
  3. Monday, Oct 26. Partly sunny. High 47°8°, low 28°−2°. Typical 50°10° / 25°−4°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 27°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 48°9°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 36°2°

      30% chance · 0.02 in0.5 mm

    4. Overnight

      midnight–6 AM

      Snow, 33°1°

      50% chance · 0.5 in1.3 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 47. East southeast wind around 2 mph.

    Night: A slight chance of rain before 9pm, then a chance of rain and snow. Partly cloudy, with a low around 28. Southeast wind 1 to 7 mph. Chance of precipitation is 30%.

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

    High, likely
    44°7°–50°10°
    Low, likely
    23°−5°–29°−2°
    Typical high / low
    50°10° / 25°−4°
    Wind
    7 mph12 km/h, gusts 21 mph34 km/h
    UV peak
    4
  4. Tuesday, Oct 27. Snow. High 43°6°, low 25°−4°. Typical 50°10° / 25°−4°. Snow 0–4 in0–10 cm, 70% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 34°1°

      60% chance · 0.3 in0.8 cm

    2. Afternoon

      noon–6 PM

      Drizzle, 39°4°

      50% chance · 0.06 in1.5 mm

    3. Evening

      6 PM–midnight

      Drizzle, 35°2°

      40% chance · 0.01 in0.4 mm

    4. Overnight

      midnight–6 AM

      Mostly clear, 31°−1°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Snow likely before 9am, then rain and snow likely between 9am and 3pm, then rain and snow likely. Mostly cloudy, with a high near 43. Southwest wind 1 to 7 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 25. West southwest wind 2 to 6 mph. New snow accumulation of less than half an inch possible.

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

    High, likely
    37°3°–43°6°
    Low, likely
    25°−4°–34°1°
    Typical high / low
    50°10° / 25°−4°
    Wind
    16 mph25 km/h, gusts 45 mph73 km/h
  5. Wednesday, Oct 28. Partly sunny. High 43°6°, low 24°−4°. Typical 49°9° / 24°−4°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 29°−2°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 44°7°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 34°1°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 31°−1°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 43.

    Night: A slight chance of snow. Partly cloudy, with a low around 24.

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

    High, likely
    40°4°–46°8°
    Low, likely
    24°−4°–32°0°
    Typical high / low
    49°9° / 24°−4°
    Wind
    11 mph17 km/h, gusts 35 mph56 km/h
    UV peak
    4
  6. Thursday, Oct 29. Snow. High 43°6°, low 25°−4°. Typical 49°9° / 24°−4°. Snow < 1 in< 2 cm, 10% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 30°−1°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 43°6°

      Dry

    3. Evening

      6 PM–midnight

      Snow, 36°2°

      20% chance · 0.3 in0.7 cm

    4. Overnight

      midnight–6 AM

      Snow, 31°0°

      20% chance · 0.5 in1.2 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 43.

    Night: A slight chance of snow. Mostly cloudy, with a low around 25.

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

    High, likely
    39°4°–47°8°
    Low, likely
    25°−4°–33°1°
    Typical high / low
    49°9° / 24°−4°
    Wind
    6 mph10 km/h, gusts 26 mph41 km/h
    UV peak
    3
  7. Friday, Oct 30. Snow. High 45°7°, low 26°−3°. Typical 48°9° / 23°−5°. Snow 0–3 in0–8 cm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Snow, 32°0°

      30% chance · 0.3 in0.8 cm

    2. Afternoon

      noon–6 PM

      Snow, 45°7°

      20% chance

    3. Evening

      6 PM–midnight

      Drizzle, 37°3°

      30% chance · 0.02 in0.4 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 33°0°

      20% chance · 0.04 in1.1 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 45.

    Night: A chance of snow. Mostly cloudy, with a low around 26. New snow accumulation of less than half an inch possible.

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

    High, likely
    39°4°–50°10°
    Low, likely
    26°−3°–33°1°
    Typical high / low
    48°9° / 23°−5°
    Wind
    12 mph19 km/h, gusts 26 mph42 km/h
    UV peak
    3
  8. Saturday, Oct 31. Snow. High 36°2°, low 25°−4°. Typical 48°9° / 23°−5°. Snow 0–2 in0–5 cm, 30% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 32°0°

      20% chance · 0.4 in0.9 cm

    2. Afternoon

      noon–6 PM

      Snow, 36°2°

      20% chance · 0.02 in0.4 mm

    3. Evening

      6 PM–midnight

      Clear, 28°−2°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 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.

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

    High, likely
    34°1°–39°4°
    Low, likely
    21°−6°–30°−1°
    Typical high / low
    48°9° / 23°−5°
    Wind
    15 mph24 km/h, gusts 21 mph34 km/h
    UV peak
    3
  9. Sunday, Nov 1. Partly sunny. High 36°2°, low 25°−4°. Typical 47°8° / 22°−6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 27°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 36°2°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 32°0°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 32°0°

      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°–41°5°
    Low, likely
    23°−5°–29°−2°
    Typical high / low
    47°8° / 22°−6°
    Wind
    12 mph19 km/h, gusts 30 mph48 km/h
    UV peak
    3
  10. Monday, Nov 2. Cloudy. High 41°5°, low 29°−2°. Typical 47°8° / 22°−6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 34°1°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 43°6°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 34°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
    35°2°–52°11°
    Low, likely
    26°−3°–31°−1°
    Typical high / low
    47°8° / 22°−6°
    Wind
    7 mph11 km/h, gusts 12 mph19 km/h
    UV peak
    3

The outlook

  1. Today

    Dry, high 41°, low 23°.

  2. Tomorrow

    Dry, high 43°, low 22°.

  3. Monday

    Dry, high 47°, low 28°, warming up.

  4. Rest of week

    Highs 36–45°; 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

East Gallatin River near Manhattan

21 mi
Level
3.2 ft

Reading from Sat 6:15 AM · NWS gauge page

Shields River above Wilsall

23 mi
Level
5.9 ft

Reading from Sat 6:15 AM · NWS gauge page

Shields River near Livingston

25 mi
Below flood stage
Level
1.0 ft
Flow
112 cfs

Reading from Sat 6:15 AM · NWS gauge page

For your home

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

Pipes: watch the cold

Tonight’s low: 20°−7°

Overnight low near 20°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 65% less heating than a typical week.

This week 69Typical 195

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.

Comfort

Dry air outside (dew point 26°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?

Wilsall 1s · official normals 1991–2020 · records 2017–2026

Oct 24, today vs a typical year

Today’s expected high is 10°6° colder than typical.

Normal high / low
51°11° / 26°−3°
Forecast high / low
41°5° / 23°−5°
Record high
67°19° in 2025
Record low
17°−8° in 2019

Last 7 days vs normal

  1. —SunOct 18
  2. —MonOct 19
  3. —TueOct 20
  4. —WedOct 21
  5. —ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

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

Sun & moon

Sun

Sunrise 7:53 AM, sunset 6:21 PM.

Daylight
10 h 29 min
Losing 3 min 3 s a day; shortest Dec 21, 1 h 50 min less
Golden hour
5:39–6:40 PM
Morning 7:34–8:34 AM
Blue hour
6:40–6:52 PM
Morning 7:22–7:34 AM; first light 7:22 AM

Stars tonight? Fair

Clear 6:52 PM–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today
sets 6:07 AM · rises 5:22 PM
Full moon
Oct 25
New moon
Nov 9
Looking southwest from Sedan. The highest point on the skyline is about 9,500 ft, 6 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.