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

Roy, MT weather

Sunny and 28°−2°.

Forecasts agree

Now 28°−2°

Sunny · Feels like 18°−8°

Feels like: 18°−8°; Wind chill from 12 mph19 km/h wind · air 28°−2°
Wind: 12 mph19 km/h; From the west. 58–12 mph19 km/h through 8 PM
Dew point: 21°−6°; Dry, static shocks likely
UV index: 0Low; Moderate 1–3 PM · peak 3

Light snow now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze until 11 AM (low 28°−2°)
Above 40°4° today by 1 PM
Below 40°4° tonight after 7 PM
Hard freeze tonight 11 PM–11 AM (low 26°−3°)
Below freezing tomorrow night from 2 AM (low 30°−1°)

This morningUp to 36°2° by 11 AM · freezing, low 28°−2° · Clear
This afternoonUp to 45°7° by 3 PM · Clear
TonightDown to 28°−2° by 4 AM · freezing, low 28°−2° · Clear
Tomorrow morningUp to 34°1° by 11 AM · freezing, low 26°−3° · Clear
Tomorrow afternoonUp to 42°6° by 5 PM · Clear
Tomorrow nightDown to 30°−1° by 5 AM · freezing, low 30°−1° · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 8a	Sunny	28°−2° (likely 28°−2° to 30°−1°)	18°−8°	0%	12 mph19 km/h from W, gusts 15 mph24 km/h	74%	0%	0
Sat 9a	Sunny	30°−1° (likely 30°−1° to 33°1°)	21°−6°	0%	10 mph16 km/h from W, gusts 14 mph22 km/h	67%	0%	0
Sat 10a	Sunny	32°0° (likely 32°0° to 38°3°)	26°−3°	0%	7 mph11 km/h from W, gusts 11 mph17 km/h	63%	0%	1
Sat 11a	Sunny	36°2° (likely 36°2° to 42°6°)	31°−1°	0%	6 mph10 km/h from W, gusts 6 mph10 km/h	55%	0%	2
Sat 12p	Sunny	39°4° (likely 39°4° to 44°7°)	36°2°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	49%	0%	2
Sat 1p	Sunny	41°5° (likely 41°5° to 46°8°)	37°3°	0%	6 mph10 km/h from SSW, gusts 9 mph15 km/h	47%	0%	3
Sat 2p	Sunny	44°7° (likely 44°7° to 46°8°)	40°4°	0%	7 mph11 km/h from SSE, gusts 10 mph17 km/h	44%	0%	3
Sat 3p	Sunny	45°7° (likely 45°7° to 47°8°)	41°5°	0%	8 mph13 km/h from SE, gusts 12 mph19 km/h	43%	0%	2
Sat 4p	Sunny	44°7° (likely 44°7° to 48°9°)	39°4°	0%	8 mph13 km/h from ESE, gusts 10 mph16 km/h	43%	0%	1
Sat 5p	Sunny	43°6° (likely 43°6° to 48°9°)	39°4°	0%	7 mph11 km/h from ESE, gusts 9 mph14 km/h	44%	0%	0
Sat 6p	Clear	41°5° (likely 41°5° to 45°7°)	37°3°	0%	6 mph10 km/h from ESE, gusts 8 mph14 km/h	53%	0%	0
Sat 7p	Clear	37°3° (likely 37°3° to 41°5°)	32°0°	0%	6 mph10 km/h from SE, gusts 7 mph12 km/h	56%	0%	0
Sat 8p	Clear	35°2° (likely 35°2° to 39°4°)	30°−1°	0%	6 mph10 km/h from SSE, gusts 5 mph9 km/h	59%	36%	0
Sat 9p	Clear	34°1° (likely 34°1° to 38°3°)	28°−2°	0%	7 mph11 km/h from SSE, gusts 4 mph7 km/h	64%	40%	0
Sat 10p	Partly cloudy	33°1° (likely 33°1° to 36°2°)	28°−2°	0%	6 mph10 km/h from SSE, gusts 4 mph6 km/h	63%	54%	0
Sat 11p	Partly cloudy	32°0° (likely 32°0° to 37°3°)	27°−3°	0%	5 mph8 km/h from SSE, gusts 3 mph5 km/h	64%	40%	0
Sun 12a	Clear	32°0° (likely 32°0° to 37°3°)	27°−3°	0%	5 mph8 km/h from SSE, gusts 3 mph5 km/h	66%	11%	0
Sun 1a	Clear	31°−1° (likely 30°−1° to 36°2°)	26°−3°	0%	5 mph8 km/h from SSE, gusts 3 mph5 km/h	69%	9%	0
Sun 2a	Clear	30°−1° (likely 28°−2° to 34°1°)	25°−4°	0%	5 mph8 km/h from SSE, gusts 4 mph6 km/h	72%	8%	0
Sun 3a	Clear	29°−2° (likely 26°−3° to 33°1°)	24°−4°	0%	5 mph8 km/h from E, gusts 5 mph8 km/h	76%	1%	0
Sun 4a	Clear	28°−2° (likely 25°−4° to 32°0°)	23°−5°	0%	5 mph8 km/h from E, gusts 5 mph9 km/h	77%	1%	0
Sun 5a	Clear	28°−2° (likely 25°−4° to 31°−1°)	22°−6°	0%	6 mph10 km/h from E, gusts 6 mph9 km/h	76%	0%	0
Sun 6a	Clear	28°−2° (likely 25°−4° to 30°−1°)	22°−6°	0%	6 mph10 km/h from E, gusts 8 mph12 km/h	77%	1%	0
Sun 7a	Clear	27°−3° (likely 24°−4° to 30°−1°)	20°−7°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	78%	1%	0
Sun 8a	Sunny	26°−3° (likely 24°−4° to 30°−1°)	19°−7°	0%	6 mph10 km/h from E, gusts 11 mph17 km/h	75%	4%	0
Sun 9a	Mostly sunny	28°−2° (likely 25°−4° to 30°−1°)	20°−7°	0%	8 mph13 km/h from E, gusts 9 mph15 km/h	71%	13%	0
Sun 10a	Mostly sunny	32°0° (likely 30°−1° to 32°0°)	25°−4°	0%	8 mph13 km/h from E, gusts 14 mph22 km/h	65%	11%	1
Sun 11a	Mostly sunny	34°1° (likely 32°0° to 34°1°)	27°−3°	0%	8 mph13 km/h from E, gusts 15 mph25 km/h	60%	16%	2
Sun 12p	Mostly sunny	36°2° (likely 35°2° to 37°3°)	28°−2°	0%	12 mph19 km/h from E, gusts 16 mph25 km/h	57%	12%	3
Sun 1p	Mostly sunny	38°3° (likely 37°3° to 39°4°)	31°−1°	0%	12 mph19 km/h from E, gusts 16 mph26 km/h	55%	14%	4
Sun 2p	Sunny	40°4° (likely 39°4° to 41°5°)	33°1°	0%	12 mph19 km/h from E, gusts 16 mph26 km/h	52%	7%	4
Sun 3p	Sunny	41°5° (likely 40°4° to 42°6°)	34°1°	0%	13 mph21 km/h from E, gusts 18 mph28 km/h	51%	5%	3
Sun 4p	Sunny	41°5° (likely 40°4° to 43°6°)	34°1°	0%	13 mph21 km/h from E, gusts 18 mph29 km/h	49%	8%	2
Sun 5p	Sunny	42°6° (likely 40°4° to 42°6°)	35°2°	0%	13 mph21 km/h from E, gusts 19 mph30 km/h	48%	0%	1
Sun 6p	Clear	39°4° (likely 38°3° to 40°4°)	32°0°	0%	10 mph16 km/h from E, gusts 16 mph25 km/h	54%	0%	0
Sun 7p	Clear	37°3° (likely 34°1° to 38°3°)	30°−1°	0%	10 mph16 km/h from E, gusts 13 mph20 km/h	58%	0%	0
Sun 8p	Clear	35°2° (likely 32°0° to 36°2°)	27°−3°	0%	10 mph16 km/h from E, gusts 12 mph19 km/h	62%	0%	0
Sun 9p	Clear	33°1° (likely 30°−1° to 35°2°)	25°−4°	0%	10 mph16 km/h from ESE, gusts 11 mph18 km/h	66%	2%	0
Sun 10p	Clear	32°0° (likely 30°−1° to 35°2°)	24°−4°	0%	10 mph16 km/h from ESE, gusts 10 mph17 km/h	67%	4%	0
Sun 11p	Mostly clear	33°1° (likely 29°−2° to 34°1°)	25°−4°	0%	10 mph16 km/h from ESE, gusts 13 mph20 km/h	67%	18%	0
Mon 12a	Clear	33°1° (likely 30°−1° to 34°1°)	25°−4°	0%	9 mph14 km/h from ESE, gusts 13 mph21 km/h	67%	33%	0
Mon 1a	Clear	33°1° (likely 29°−2° to 33°1°)	25°−4°	0%	9 mph14 km/h from ESE, gusts 14 mph22 km/h	70%	36%	0
Mon 2a	Mostly clear	32°0° (likely 30°−1° to 33°1°)	24°−4°	0%	9 mph14 km/h from ESE, gusts 17 mph27 km/h	75%	49%	0
Mon 3a	Partly cloudy	31°−1° (likely 31°−1° to 33°1°)	22°−6°	0%	10 mph16 km/h from SE, gusts 17 mph28 km/h	78%	49%	0
Mon 4a	Partly cloudy	31°−1° (likely 31°−1° to 33°1°)	22°−6°	0%	10 mph16 km/h from SE, gusts 19 mph30 km/h	79%	53%	0
Mon 5a	Partly cloudy	30°−1° (likely 30°−1° to 33°1°)	21°−6°	0%	10 mph16 km/h from SE, gusts 17 mph28 km/h	80%	57%	0
Mon 6a	Partly cloudy	30°−1° (likely 30°−1° to 33°1°)	19°−7°	0%	14 mph23 km/h from SE, gusts 17 mph27 km/h	80%	59%	0
Mon 7a	Partly cloudy	30°−1° (likely 30°−1° to 33°1°)	19°−7°	0%	14 mph23 km/h from SE, gusts 15 mph24 km/h	83%	51%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Mostly sunny. High 45°7°, low 26°−3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 45°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 28°−2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 45. Southwest wind 5 to 12 mph, with gusts as high as 18 mph.
Tonight: Mostly clear, with a low around 26. Southeast wind around 7 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
45°7°–49°9°
Low, likely
26°−3°–30°−1°
Wind
27 mph44 km/h, gusts 43 mph69 km/h
UV peak
4
Tomorrow, Oct 25. Mostly sunny. High 42°6°, low 29°−2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 26°−3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 42°6°
  Dry
3. Evening
  6 PM–midnight
  Clear, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 30°−1°
  Dry
Official NWS forecast
Day: Sunny, with a high near 42. East wind 6 to 13 mph, with gusts as high as 22 mph.
Night: Mostly clear, with a low around 29. East southeast wind around 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
41°5°–43°6°
Low, likely
24°−4°–30°−1°
Wind
13 mph21 km/h, gusts 23 mph36 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 46°8°, low 32°0°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 46. Southeast wind 14 to 20 mph, with gusts as high as 29 mph.
Night: Mostly cloudy, with a low around 32. Southeast wind 9 to 17 mph, with gusts as high as 26 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
44°7°–50°10°
Low, likely
29°−2°–32°0°
Wind
18 mph29 km/h, gusts 30 mph48 km/h
UV peak
3
Tuesday, Oct 27. Rain. High 47°8°, low 33°1°. Rain 0.12 in3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 32°0°
  30% chance · 0.07 in1.8 mm
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  30% chance · 0.04 in1 mm
3. Evening
  6 PM–midnight
  Cloudy, 42°5°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 47. South southwest wind 7 to 12 mph, with gusts as high as 21 mph.
Night: A chance of rain. Mostly cloudy, with a low around 33. West wind 12 to 21 mph, with gusts as high as 30 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–48°9°
Low, likely
30°−1°–34°1°
Wind
18 mph28 km/h, gusts 35 mph57 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 45°7°, low 28°−2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 45.
Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 28.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–54°12°
Low, likely
28°−2°–39°4°
Wind
17 mph28 km/h, gusts 43 mph69 km/h
UV peak
3
Thursday, Oct 29. Snow. High 41°5°, low 29°−2°. Snow 0.02 in0.5 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 33°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  20% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Snow, 34°1°
  20% chance · 0.3 in0.9 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 41.
Night: A slight chance of snow before 9pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 29.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
38°3°–46°8°
Low, likely
29°−2°–33°1°
Wind
20 mph32 km/h, gusts 26 mph41 km/h
UV peak
3
Friday, Oct 30. Snow. High 44°7°, low 31°−1°. Snow 0–2 in0–5 cm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  20% chance · 0.2 in0.4 cm
2. Afternoon
  noon–6 PM
  Cloudy, 39°4°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  20% chance · 0.1 in0.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 44.
Night: A slight chance of snow before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
33°1°–47°8°
Low, likely
28°−2°–37°3°
Wind
21 mph33 km/h
UV peak
3
Saturday, Oct 31. Snow. High 39°4°, low 28°−2°. Snow 0–2 in0–5 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 39°4°
  Dry
3. Evening
  6 PM–midnight
  Clear, 32°0°
  Dry
4. Overnight
  midnight–6 AM
  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
30°−1°–51°11°
Low, likely
17°−8°–37°3°
Wind
18 mph29 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 42°6°, low 28°−2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  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°–47°8°
Low, likely
14°−10°–34°1°
Wind
22 mph35 km/h, gusts 30 mph48 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 48°9°, low 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  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
38°3°–58°14°
Low, likely
35°2°–38°3°
Wind
11 mph17 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 45°, low 26°.
Tomorrow
Dry, high 42°, low 29°, cooling off.
Monday
Dry, high 46°, low 32°, warming up.
Rest of week
Mostly dry, highs 39–48°.

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

Missouri River near Landusky

24 mi

Below flood stage

Level: 13.5 ft
Flow: 5,470 cfs

Reading from Sat 7 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 24 min; Losing 3 min 12 s a day; shortest Dec 21, 1 h 56 min less
Golden hour: 5:28–6:30 PM; Morning 7:28–8:30 AM
Blue hour: 6:30–6:43 PM; Morning 7:16–7:28 AM; first light 7:16 AM

Stars tonight? Fair

Mostly clear 12–7:17 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:01 AM · rises 5:12 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from Roy. The highest point on the skyline is about 6,300 ft, 15 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Roy, MT weather

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