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Observed 2:35 PM MDT at KCTB

Sweet Grass, MT weather

Sunny and 37°3°.

Today: low 24°−4°, high 39°4°.

One forecast only

Now 37°3°

Sunny · Feels like 31°−1°

Feels like
31°−1°
Wind chill from 9 mph15 km/h wind · air 37°3°
Wind
9 mph15 km/h
From the southeast. 610–9 mph15 km/h through 2 AM
Dew point
28°−2°
Dry, static shocks likely

Next 48 hours

Good hours for
  • Hard freeze tonight 9 PM–11 AM (low 24°−4°)
  • Low 24°−4° tomorrow at 8 AM
  • Above 30°−1° tomorrow by 10 AM
  • Hard freeze tomorrow night 8 PM–11 AM (low 23°−5°)
  1. This afternoonNear 39°4°
  2. TonightDown to 26°−3° by 5 AM · freezing, low 26°−3°
  3. Tomorrow morningUp to 33°1° by 11 AM · freezing, low 24°−4°
  4. Tomorrow afternoonUp to 42°6° by 4 PM
  5. Tomorrow nightDown to 25°−4° by 5 AM · freezing, low 25°−4°
  6. Monday morningUp to 34°1° by 11 AM · freezing, low 23°−5°
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 2pPartly sunny39°4° (likely 38°3° to 39°4°)35°2°0%6 mph10 km/h from SE50%—2
Sat 3pPartly sunny39°4° (likely 39°4° to 39°4°)35°2°0%6 mph10 km/h from SE50%—2
Sat 4pPartly sunny39°4° (likely 39°4° to 39°4°)35°2°0%6 mph10 km/h from E50%—1
Sat 5pPartly sunny39°4° (likely 39°4° to 39°4°)34°1°0%7 mph11 km/h from E50%—1
Sat 6pMostly cloudy38°3° (likely 34°1° to 38°3°)33°1°0%7 mph11 km/h from ENE59%——
Sat 7pMostly cloudy35°2° (likely 33°1° to 35°2°)29°−2°0%7 mph11 km/h from ENE70%——
Sat 8pMostly cloudy34°1° (likely 33°1° to 34°1°)27°−3°0%8 mph13 km/h from NE72%——
Sat 9pMostly cloudy32°0° (likely 32°0° to 33°1°)24°−4°0%9 mph14 km/h from NE74%——
Sat 10pMostly cloudy31°−1° (likely 31°−1° to 33°1°)23°−5°0%9 mph14 km/h from NNE77%——
Sat 11pCloudy32°0° (likely 32°0° to 32°0°)24°−4°0%9 mph14 km/h from NNE74%——
Sun 12aMostly cloudy31°−1° (likely 31°−1° to 31°−1°)23°−5°0%9 mph14 km/h from NNE75%——
Sun 1aMostly cloudy30°−1° (likely 30°−1° to 31°−1°)22°−6°0%9 mph14 km/h from NNE78%——
Sun 2aMostly cloudy29°−2° (likely 29°−2° to 30°−1°)20°−7°0%9 mph14 km/h from NNE80%——
Sun 3aMostly cloudy28°−2° (likely 28°−2° to 30°−1°)19°−7°0%9 mph14 km/h from N81%——
Sun 4aMostly cloudy28°−2° (likely 28°−2° to 29°−2°)20°−7°0%8 mph13 km/h from NNE82%——
Sun 5aMostly cloudy26°−3° (likely 26°−3° to 29°−2°)18°−8°0%8 mph13 km/h from NNE87%——
Sun 6aPartly cloudy26°−3° (likely 26°−3° to 28°−2°)18°−8°0%7 mph11 km/h from NNE87%——
Sun 7aMostly cloudy25°−4° (likely 25°−4° to 27°−3°)18°−8°0%6 mph10 km/h from NE87%——
Sun 8aMostly cloudy24°−4° (likely 24°−4° to 27°−3°)18°−8°0%5 mph8 km/h from NNE87%——
Sun 9aMostly cloudy26°−3° (likely 26°−3° to 28°−2°)20°−7°0%5 mph8 km/h from NE83%——
Sun 10aMostly cloudy30°−1° (likely 30°−1° to 30°−1°)26°−3°0%3 mph5 km/h from NE76%——
Sun 11aMostly cloudy33°1° (likely 32°0° to 33°1°)30°−1°0%3 mph5 km/h from NE66%——
Sun 12pMostly cloudy36°2° (likely 33°1° to 36°2°)32°0°0%5 mph8 km/h from ENE58%——
Sun 1pPartly sunny39°4° (likely 35°2° to 39°4°)35°2°0%6 mph10 km/h from ENE52%——
Sun 2pPartly sunny40°4° (likely 37°3° to 40°4°)35°2°0%7 mph11 km/h from ENE50%——
Sun 3pMostly cloudy41°5° (likely 37°3° to 41°5°)36°2°0%8 mph13 km/h from ENE48%——
Sun 4pMostly cloudy42°6° (likely 38°3° to 42°6°)37°3°0%8 mph13 km/h from ENE47%——
Sun 5pMostly cloudy41°5° (likely 37°3° to 41°5°)36°2°0%8 mph13 km/h from ENE47%——
Sun 6pMostly cloudy37°3° (likely 35°2° to 37°3°)33°1°0%5 mph8 km/h from E58%——
Sun 7pMostly cloudy34°1° (likely 33°1° to 34°1°)30°−1°0%5 mph8 km/h from E71%——
Sun 8pMostly cloudy31°−1° (likely 31°−1° to 32°0°)26°−3°0%5 mph8 km/h from E74%——
Sun 9pCloudy30°−1° (likely 30°−1° to 31°−1°)26°−3°0%3 mph5 km/h from ESE78%——
Sun 10pCloudy29°−2° (likely 29°−2° to 30°−1°)25°−4°0%3 mph5 km/h from ESE81%——
Sun 11pCloudy28°−2° (likely 28°−2° to 30°−1°)24°−4°0%3 mph5 km/h from ESE80%——
Mon 12aCloudy28°−2° (likely 28°−2° to 29°−2°)24°−4°0%3 mph5 km/h from E83%——
Mon 1aCloudy28°−2° (likely 28°−2° to 28°−2°)24°−4°0%3 mph5 km/h from E84%——
Mon 2aCloudy27°−3° (likely 27°−3° to 28°−2°)23°−5°0%3 mph5 km/h from E85%——
Mon 3aMostly cloudy26°−3° (likely 26°−3° to 28°−2°)22°−6°0%3 mph5 km/h from SSE85%——
Mon 4aMostly cloudy26°−3° (likely 26°−3° to 28°−2°)22°−6°0%3 mph5 km/h from SSE85%——
Mon 5aMostly cloudy25°−4° (likely 25°−4° to 28°−2°)21°−6°0%3 mph5 km/h from SSE87%——
Mon 6aMostly cloudy23°−5° (likely 23°−5° to 28°−2°)15°−9°0%7 mph11 km/h from S87%——
Mon 7aMostly cloudy25°−4° (likely 25°−4° to 25°−4°)17°−8°0%7 mph11 km/h from S87%——
Mon 8aMostly cloudy26°−3° (likely 26°−3° to 26°−3°)18°−8°0%7 mph11 km/h from S87%——
Mon 9aMostly cloudy27°−3° (likely 27°−3° to 27°−3°)19°−7°0%8 mph13 km/h from SSE85%——
Mon 10aMostly cloudy30°−1° (likely 30°−1° to 30°−1°)22°−6°0%8 mph13 km/h from SSE81%——
Mon 11aMostly cloudy34°1° (likely 34°1° to 34°1°)27°−3°0%8 mph13 km/h from SSE76%——
Mon 12pMostly cloudy38°3° (likely 38°3° to 38°3°)30°−1°0%14 mph23 km/h from SSE71%——
Mon 1pMostly cloudy40°4° (likely 40°4° to 40°4°)32°0°0%14 mph23 km/h from SSE67%——

Days ahead

Tap a day for its hours and the official wording.
  1. Today, Oct 24. Partly sunny. High 39°4°, low 24°−4°. Dry. One forecast only.
    1. Afternoon

      noon–6 PM

      Partly sunny, 39°4°

      Dry

    2. Evening

      6 PM–midnight

      Mostly cloudy, 34°1°

      Dry

    3. Overnight

      midnight–6 AM

      Mostly cloudy, 26°−3°

      Dry

    Official NWS forecast

    Today: Mostly sunny, with a high near 39. East southeast wind around 7 mph.

    Tonight: Mostly cloudy, with a low around 24. Northeast wind around 9 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    39°4°
    Low, likely
    24°−4°
    Wind
    7 mph11 km/h
  2. Tomorrow, Oct 25. Mostly cloudy. High 42°6°, low 22°−6°. Dry. One forecast only.
    1. Morning

      6 AM–noon

      Mostly cloudy, 24°−4°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly cloudy, 42°6°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 31°−1°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly cloudy, 25°−4°

      Dry

    Official NWS forecast

    Day: Partly sunny, with a high near 42. Northeast wind 3 to 8 mph.

    Night: Mostly cloudy, with a low around 22. East southeast wind around 5 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    38°3°–42°6°
    Low, likely
    22°−6°–27°−3°
    Wind
    8 mph13 km/h
  3. Monday, Oct 26. Mostly cloudy. High 43°6°, low 27°−3°. Dry. One forecast only.
    1. Morning

      6 AM–noon

      Mostly cloudy, 26°−3°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly cloudy, 40°4°

      Dry

    Official NWS forecast

    Day: Partly sunny, with a high near 43. South southeast wind 7 to 14 mph, with gusts as high as 22 mph.

    Night: Mostly cloudy, with a low around 27. South wind around 8 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    38°3°–43°6°
    Low, likely
    27°−3°
    Wind
    9 mph15 km/h
  4. Tuesday, Oct 27. Rain. High 48°9°, low 26°−3°. Rain 0.06 in1.5 mm, 20% chance. One forecast only.

    Official NWS forecast

    Day: A slight chance of rain after noon. Mostly cloudy, with a high near 48. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 26. West northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    45°7°–48°9°
    Low, likely
    26°−3°–32°0°
    Wind
    10 mph16 km/h
  5. Wednesday, Oct 28. Mostly cloudy. High 42°6°, low 22°−6°. Dry. One forecast only.

    Official NWS forecast

    Day: Partly sunny, with a high near 42.

    Night: A chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than half an inch possible.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    42°6°
    Low, likely
    22°−6°–28°−2°
    Wind
    9 mph14 km/h
  6. Thursday, Oct 29. Snow. High 34°1°, low 21°−6°. Snow 0.05 in1.3 mm, 30% chance. One forecast only.

    Official NWS forecast

    Day: A chance of snow. Mostly cloudy, with a high near 34.

    Night: A chance of snow. Mostly cloudy, with a low around 21. Little or no snow accumulation expected.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    31°−1°–34°1°
    Low, likely
    21°−6°–26°−3°
    Wind
    7 mph11 km/h
  7. Friday, Oct 30. Snow. High 38°3°, low 21°−6°. Snow 0.08 in2 mm, 30% chance. One forecast only.

    Official NWS forecast

    Day: A chance of snow. Partly sunny, with a high near 38. New snow accumulation of less than half an inch possible.

    Night: Mostly cloudy, with a low around 21.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    31°−1°–38°3°
    Low, likely
    21°−6°–26°−3°
    Wind
    6 mph10 km/h

The outlook

  1. Today

    Dry, high 39°, low 24°.

  2. Tomorrow

    Dry, high 42°, low 22°, warming up.

  3. Monday

    Dry, high 43°, low 27°.

  4. Rest of week

    Mostly dry, highs 34–48°.

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

Milk River above Milk River AB

12 mi
Level
1.0 ft

Reading from Sat 2:15 PM · NWS gauge page

Sun & moon

Sun

Sunrise 8:02 AM, sunset 6:20 PM.

Daylight
10 h 18 min
Losing 3 min 26 s a day; shortest Dec 21, 2 h 4 min less
Golden hour
5:35–6:40 PM
Morning 7:42–8:47 AM
Blue hour
6:40–6:53 PM
Morning 7:30–7:42 AM; first light 7:30 AM

Stars tonight? Unknown

Cloud forecast not available for tonight.

Moon

Waxing gibbous

98% lit · growing

Today
sets 6:15 AM · rises 5:22 PM
Full moon
Oct 25
New moon
Nov 9
Looking west from Sweet Grass. The highest point on the skyline is about 9,400 ft, 79 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.