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Model estimate for 8:00 AM MDT (no recent station report)

Basin, MT weather

Sunny and 20°−7°, 13°7° colder than a typical Oct 24.

Today: low 24°−4° (likely 13°−11° to 24°−4°), high 40°4° (likely 39°4° to 42°6°).

Mostly agree

Now 20°−7°

Sunny · Feels like 13°−11°

Feels like
12°−11°
Wind chill from 6 mph10 km/h wind · air 20°−7°
Wind
6 mph10 km/h
From the east. Up to 7 mph11 km/h through 8 PM
Dew point
16°−9°
Dry · up to 24°−4° by 12 PM
UV index
0Low
Moderate 1–3 PM · peak 3
Air quality
18Good
Main pollutant: PM2.5 (fine particles)

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Hard freeze until noon (low 20°−7°)
  • Above 30°−1° today by 11 AM
  • Hard freeze tonight 7 PM–noon (low 24°−4°)
  • Below 30°−1° tonight after 9 PM
  • Hard freeze tomorrow night from 7 PM (low 26°−3°)
  1. This morningUp to 31°−1° by 11 AM · freezing, low 20°−7° · Clear
  2. This afternoonUp to 40°4° by 2 PM · Clear
  3. TonightDown to 26°−3° by 5 AM · freezing, low 26°−3° · Clear
  4. Tomorrow morningUp to 32°0° by 11 AM · freezing, low 24°−4° · Clear
  5. Tomorrow afternoonNear 37°3° · Partly cloudy
  6. Tomorrow nightDown to 26°−3° by 4 AM · freezing, low 26°−3° · Mostly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 8aSunny20°−7° (likely 15°−9° to 20°−7°)13°−11°0%6 mph10 km/h from E, gusts 5 mph8 km/h83%1%0
Sat 9aSunny22°−6° (likely 18°−8° to 23°−5°)13°−11°0%7 mph11 km/h from SE, gusts 5 mph7 km/h79%0%0
Sat 10aSunny27°−3° (likely 24°−4° to 27°−3°)22°−6°0%5 mph8 km/h from E, gusts 5 mph8 km/h72%4%1
Sat 11aSunny31°−1° (likely 28°−2° to 31°−1°)27°−3°0%5 mph8 km/h from ESE, gusts 5 mph8 km/h66%6%1
Sat 12pSunny36°2° (likely 32°0° to 36°2°)31°−1°0%6 mph10 km/h from SE, gusts 7 mph11 km/h60%8%2
Sat 1pSunny39°4° (likely 34°1° to 39°4°)35°2°0%6 mph10 km/h from ESE, gusts 6 mph10 km/h60%9%3
Sat 2pSunny40°4° (likely 36°2° to 41°5°)36°2°0%6 mph10 km/h from ESE, gusts 8 mph13 km/h55%10%3
Sat 3pSunny40°4° (likely 39°4° to 42°6°)36°2°0%6 mph10 km/h from SE, gusts 8 mph13 km/h53%9%2
Sat 4pMostly sunny39°4° (likely 39°4° to 42°6°)36°2°0%5 mph8 km/h from ESE, gusts 6 mph10 km/h55%20%1
Sat 5pPartly sunny38°3° (likely 36°2° to 41°5°)36°2°0%3 mph5 km/h from E, gusts 6 mph10 km/h59%48%1
Sat 6pMostly clear36°2° (likely 32°0° to 38°3°)36°2°0%2 mph3 km/h from ESE, gusts 5 mph7 km/h70%49%1
Sat 7pPartly cloudy32°0° (likely 28°−2° to 33°1°)32°0°0%2 mph3 km/h from ENE, gusts 3 mph5 km/h78%47%0
Sat 8pPartly cloudy30°−1° (likely 26°−3° to 33°1°)26°−3°0%3 mph5 km/h from NNW, gusts 2 mph3 km/h79%47%0
Sat 9pCloudy29°−2° (likely 25°−4° to 33°1°)25°−4°0%3 mph5 km/h from SW, gusts 3 mph5 km/h80%59%0
Sat 10pMostly cloudy29°−2° (likely 24°−4° to 32°0°)25°−4°0%3 mph5 km/h from N, gusts 5 mph8 km/h80%27%0
Sat 11pClear29°−2° (likely 24°−4° to 31°−1°)29°−2°0%2 mph3 km/h from NNE, gusts 5 mph8 km/h79%14%0
Sun 12aClear29°−2° (likely 24°−4° to 31°−1°)29°−2°0%2 mph3 km/h from E, gusts 4 mph7 km/h79%14%0
Sun 1aClear28°−2° (likely 24°−4° to 31°−1°)28°−2°0%1 mph2 km/h from NE, gusts 4 mph6 km/h76%13%0
Sun 2aClear28°−2° (likely 24°−4° to 32°0°)28°−2°0%1 mph2 km/h from N, gusts 2 mph4 km/h74%0%0
Sun 3aClear27°−3° (likely 24°−4° to 32°0°)27°−3°0%1 mph2 km/h from WNW, gusts 2 mph4 km/h73%3%0
Sun 4aClear27°−3° (likely 23°−5° to 32°0°)27°−3°0%1 mph2 km/h from NNW, gusts 3 mph4 km/h73%2%0
Sun 5aClear26°−3° (likely 22°−6° to 32°0°)26°−3°0%1 mph2 km/h from NE, gusts 6 mph10 km/h75%6%0
Sun 6aMostly clear26°−3° (likely 21°−6° to 31°−1°)26°−3°0%2 mph3 km/h from ENE, gusts 5 mph9 km/h77%24%0
Sun 7aClear25°−4° (likely 21°−6° to 31°−1°)25°−4°0%2 mph3 km/h from ENE, gusts 5 mph9 km/h80%8%0
Sun 8aMostly sunny24°−4° (likely 20°−7° to 31°−1°)24°−4°0%2 mph3 km/h from ENE, gusts 6 mph9 km/h82%14%0
Sun 9aPartly sunny26°−3° (likely 21°−6° to 31°−1°)22°−6°0%3 mph5 km/h from E, gusts 7 mph11 km/h80%19%0
Sun 10aPartly sunny30°−1° (likely 27°−3° to 33°1°)26°−3°0%3 mph5 km/h from E, gusts 7 mph12 km/h75%21%1
Sun 11aPartly sunny32°0° (likely 31°−1° to 35°2°)29°−2°0%3 mph5 km/h from E, gusts 11 mph17 km/h70%27%2
Sun 12pPartly sunny36°2° (likely 35°2° to 38°3°)31°−1°0%6 mph10 km/h from ESE, gusts 14 mph22 km/h65%25%2
Sun 1pPartly sunny37°3° (likely 37°3° to 39°4°)32°0°0%6 mph10 km/h from ESE, gusts 14 mph22 km/h66%49%3
Sun 2pMostly sunny38°3° (likely 38°3° to 40°4°)34°1°0%6 mph10 km/h from ESE, gusts 14 mph23 km/h64%42%3
Sun 3pMostly sunny39°4° (likely 38°3° to 41°5°)35°2°0%6 mph10 km/h from E, gusts 15 mph24 km/h62%26%3
Sun 4pMostly sunny37°3° (likely 37°3° to 40°4°)32°0°0%6 mph10 km/h from E, gusts 15 mph24 km/h64%54%3
Sun 5pMostly sunny37°3° (likely 36°2° to 39°4°)32°0°0%6 mph10 km/h from E, gusts 14 mph23 km/h66%50%1
Sun 6pPartly cloudy34°1° (likely 32°0° to 36°2°)31°−1°0%3 mph5 km/h from E, gusts 12 mph19 km/h75%50%1
Sun 7pMostly clear31°−1° (likely 29°−2° to 32°0°)28°−2°0%3 mph5 km/h from E, gusts 10 mph15 km/h82%60%0
Sun 8pPartly cloudy29°−2° (likely 27°−3° to 30°−1°)25°−4°0%3 mph5 km/h from E, gusts 9 mph14 km/h84%58%0
Sun 9pPartly cloudy28°−2° (likely 26°−3° to 30°−1°)23°−5°0%5 mph8 km/h from ESE, gusts 8 mph13 km/h84%64%0
Sun 10pPartly cloudy27°−3° (likely 25°−4° to 30°−1°)22°−6°0%5 mph8 km/h from ESE, gusts 8 mph13 km/h85%81%0
Sun 11pCloudy27°−3° (likely 25°−4° to 30°−1°)22°−6°0%5 mph8 km/h from ESE, gusts 8 mph13 km/h87%83%0
Mon 12aCloudy27°−3° (likely 24°−4° to 31°−1°)22°−6°0%5 mph8 km/h from SE, gusts 8 mph13 km/h87%80%0
Mon 1aCloudy27°−3° (likely 23°−5° to 31°−1°)22°−6°0%5 mph8 km/h from SE, gusts 8 mph13 km/h86%77%0
Mon 2aCloudy27°−3° (likely 23°−5° to 31°−1°)22°−6°0%5 mph8 km/h from SE, gusts 8 mph13 km/h84%80%0
Mon 3aCloudy27°−3° (likely 23°−5° to 31°−1°)22°−6°0%5 mph8 km/h from SSE, gusts 7 mph11 km/h82%79%0
Mon 4aCloudy26°−3° (likely 22°−6° to 30°−1°)20°−7°0%5 mph8 km/h from SSE, gusts 7 mph11 km/h81%81%0
Mon 5aCloudy26°−3° (likely 22°−6° to 30°−1°)20°−7°0%5 mph8 km/h from SSE, gusts 6 mph10 km/h80%82%0
Mon 6aCloudy26°−3° (likely 22°−6° to 29°−2°)20°−7°0%5 mph8 km/h from SSE, gusts 5 mph9 km/h79%83%0
Mon 7aMostly cloudy26°−3° (likely 21°−6° to 26°−3°)20°−7°0%5 mph8 km/h from SSE, gusts 3 mph5 km/h78%56%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Mostly sunny. High 40°4°, low 24°−4°. Typical 53°12° / 25°−4°. 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

      Cloudy, 30°−1°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 26°−3°

      Dry

    Official NWS forecast

    Today: Sunny, with a high near 40. East southeast wind 3 to 7 mph.

    Tonight: Mostly clear, with a low around 24. North northeast wind around 3 mph.

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

    High, likely
    39°4°–42°6°
    Low, likely
    13°−11°–24°−4°
    Typical high / low
    53°12° / 25°−4°
    Wind
    6 mph10 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Partly sunny. High 39°4°, low 25°−4°. Typical 53°12° / 24°−4°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Partly sunny, 24°−4°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 39°4°

      Dry

    3. Evening

      6 PM–midnight

      Partly cloudy, 29°−2°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 26°−3°

      Dry

    Official NWS forecast

    Day: Mostly sunny, with a high near 39. East wind 2 to 6 mph.

    Night: Partly cloudy, with a low around 25. Southeast wind around 5 mph.

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

    High, likely
    38°3°–41°5°
    Low, likely
    20°−7°–30°−1°
    Typical high / low
    53°12° / 24°−4°
    Wind
    11 mph17 km/h, gusts 16 mph26 km/h
    UV peak
    3
  3. Monday, Oct 26. Mostly cloudy. High 45°7°, low 30°−1°. Typical 52°11° / 24°−4°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 24°−5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 46°8°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 35°1°

      40% chance · 0.01 in0.4 mm

    4. Overnight

      midnight–6 AM

      Snow, 31°0°

      50% chance · 0.2 in0.6 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 45. South southeast wind around 6 mph.

    Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. South wind 3 to 7 mph. Chance of precipitation is 40%.

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

    High, likely
    43°6°–48°9°
    Low, likely
    21°−6°–30°−1°
    Typical high / low
    52°11° / 24°−4°
    Wind
    8 mph13 km/h, gusts 16 mph26 km/h
    UV peak
    3
  4. Tuesday, Oct 27. Snow. High 39°4°, low 26°−3°. Typical 52°11° / 24°−4°. Snow 0–1 in0–3 cm, 60% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 32°0°

      50% chance · 0.3 in0.8 cm

    2. Afternoon

      noon–6 PM

      Snow showers, 38°3°

      30% chance

    3. Evening

      6 PM–midnight

      Partly cloudy, 30°−1°

      30% chance

    4. Overnight

      midnight–6 AM

      Cloudy, 27°−3°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Snow likely before 3pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. West southwest wind 6 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than half an inch possible.

    Night: A chance of snow. Mostly cloudy, with a low around 26. West southwest wind 6 to 10 mph. New snow accumulation of around one inch possible.

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

    High, likely
    36°2°–39°4°
    Low, likely
    24°−4°–31°−1°
    Typical high / low
    52°11° / 24°−4°
    Wind
    15 mph23 km/h, gusts 31 mph49 km/h
    UV peak
    3
  5. Wednesday, Oct 28. Snow. High 39°4°, low 25°−4°. Typical 51°11° / 24°−4°. Snow 0.01 in0.3 mm, 20% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 27°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 41°5°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 31°−1°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 27°−3°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A slight chance of snow. Mostly sunny, with a high near 39.

    Night: A slight chance of snow before midnight. Partly cloudy, with a low around 25.

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

    High, likely
    38°3°–42°6°
    Low, likely
    22°−6°–29°−2°
    Typical high / low
    51°11° / 24°−4°
    Wind
    10 mph16 km/h, gusts 25 mph40 km/h
    UV peak
    4
  6. Thursday, Oct 29. Partly sunny. High 38°3°, low 25°−4°. Typical 51°11° / 23°−5°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 26°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 42°5°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 32°0°

      30% chance · 0.02 in0.4 mm

    4. Overnight

      midnight–6 AM

      Snow, 28°−2°

      30% chance · 0.2 in0.4 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 38.

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

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

    High, likely
    38°3°–44°7°
    Low, likely
    22°−6°–27°−3°
    Typical high / low
    51°11° / 23°−5°
    Wind
    6 mph10 km/h, gusts 26 mph41 km/h
    UV peak
    3
  7. Friday, Oct 30. Snow. High 41°5°, low 26°−3°. Typical 50°10° / 23°−5°. Snow 0–2 in0–5 cm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Snow, 29°−2°

      30% chance · 0.2 in0.5 cm

    2. Afternoon

      noon–6 PM

      Snow, 38°3°

      30% chance · 0.2 in0.5 cm

    3. Evening

      6 PM–midnight

      Drizzle, 30°−1°

      30% chance · 0.4 in1 cm

    4. Overnight

      midnight–6 AM

      Cloudy, 26°−3°

      20% chance · 0.01 in0.3 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of snow. Partly sunny, with a high near 41. Little or no snow accumulation expected.

    Night: A chance of snow. Mostly cloudy, with a low around 26.

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

    High, likely
    34°1°–41°5°
    Low, likely
    21°−6°–28°−2°
    Typical high / low
    50°10° / 23°−5°
    Wind
    5 mph8 km/h, gusts 16 mph25 km/h
  8. Saturday, Oct 31. Snow showers. High 32°0°, low 20°−7°. Typical 50°10° / 23°−5°. Snow 0–1 in0–3 cm, 20% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow showers, 26°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 32°0°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 25°−4°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 22°−6°

      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
    30°−1°–35°2°
    Low, likely
    18°−8°–23°−5°
    Typical high / low
    50°10° / 23°−5°
    Wind
    13 mph21 km/h, gusts 26 mph42 km/h
    UV peak
    3
  9. Sunday, Nov 1. Cloudy. High 35°2°, low 21°−6°. Typical 49°9° / 22°−6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 24°−5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 34°1°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 28°−2°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 26°−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
    30°−1°–39°4°
    Low, likely
    19°−7°–24°−4°
    Typical high / low
    49°9° / 22°−6°
    Wind
    17 mph28 km/h, gusts 35 mph56 km/h
    UV peak
    3
  10. Monday, Nov 2. Cloudy. High 40°4°, low 24°−4°. Typical 49°9° / 22°−6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 32°0°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 41°5°

      Dry

    3. Evening

      6 PM–midnight

      Partly 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
    31°−1°–51°11°
    Low, likely
    21°−6°–27°−3°
    Typical high / low
    49°9° / 22°−6°
    Wind
    7 mph10 km/h, gusts 12 mph19 km/h
    UV peak
    3

The outlook

  1. Today

    Dry, high 40°, low 24°.

  2. Tomorrow

    Dry, high 39°, low 25°.

  3. Monday

    Dry, high 45°, low 30°, warming up.

  4. Rest of week

    Highs 32–41°; 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

Clark Fork River at Deer Lodge

23 mi
Below flood stage
Level
3.0 ft
Flow
276 cfs

Forecast peak 2.8 ft Sat 6 PM

Reading from Sat 6:30 AM · NWS gauge page

Boulder River (Central MT) near Boulder

11 mi
Level
5.6 ft
Flow
128 cfs

Reading from Sat 7:15 AM · NWS gauge page

Tenmile Creek (MT) near Rimini

17 mi
Level
1.9 ft
Flow
15 cfs

Reading from Sat 6:45 AM · NWS gauge page

Prickly Pear Creek near Clancy

23 mi
Level
1.1 ft
Flow
51 cfs

Reading from Fri 10:30 PM · NWS gauge page

For your home

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

Heating this week

About 65% less heating than a typical week.

This week 67Typical 191

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 5 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 16°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?

Boulder · official normals 1991–2020 · records 1880–2026

Oct 24, today vs a typical year

Today’s expected high is 13°7° colder than typical.

Normal high / low
53°12° / 25°−4°
Forecast high / low
40°4° / 24°−4°
Record high
74°23° in 1959
Record low
8°−13° in 2002

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

  1. +4°+2°SunOct 18
  2. +4°+2°MonOct 19
  3. +9°+5°TueOct 20
  4. —WedOct 21
  5. —ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

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

Sun & moon

Sun

Sunrise 7:59 AM, sunset 6:26 PM.

Daylight
10 h 28 min
Losing 3 min 3 s a day; shortest Dec 21, 1 h 51 min less
Golden hour
5:44–6:45 PM
Morning 7:40–8:41 AM
Blue hour
6:45–6:57 PM
Morning 7:28–7:40 AM; first light 7:28 AM

Stars tonight? Fair

Mostly clear 11 PM–7:29 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today
sets 6:13 AM · rises 5:27 PM
Full moon
Oct 25
New moon
Nov 9
Looking northeast from Basin. The highest point on the skyline is about 9,400 ft, 18 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.