Observed 1:35 PM MDT at KLVM

Twodot, MT weather

Sunny and 39°4°, 8°4° colder than a typical Oct 24, freeze watch tonight, low 24°−4°.

Mostly agree

Now 39°4°

Sunny

Wind: Calm; Up to 7 mph11 km/h through 1 AM
Dew point: 27°−3°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 12–4 PM · peak 4
Pressure (notable): 30.28 inHg1025 hPa; Falling fast · −0.13 inHg−4.3 hPa in 3 h, change coming

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze tonight 9 PM–11 AM (low 23°−5°)
Below 30°−1° tonight after 9 PM
Above 30°−1° tomorrow by 10 AM
Hard freeze tomorrow night 8 PM–11 AM (low 22°−6°)
Fog Monday 4–9 AM

This afternoonUp to 45°7° by 5 PM · Clear
TonightDown to 24°−4° by 2 AM · freezing, low 24°−4° · Clear
Tomorrow morningUp to 36°2° by 11 AM · freezing, low 23°−5° · Clear
Tomorrow afternoonNear 41°5° · Clear
Tomorrow nightDown to 23°−5° by 4 AM · freezing, low 23°−5° · Partly cloudy
Monday morningUp to 35°2° by 11 AM · Partly cloudy · freezing, low 22°−6°

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 1p	Sunny	40°4° (likely 40°4° to 42°6°)	37°3°	0%	5 mph8 km/h from SSE, gusts 5 mph8 km/h	51%	1%	2
Sat 2p	Sunny	43°6° (likely 42°6° to 45°7°)	39°4°	0%	6 mph10 km/h from SSE, gusts 6 mph9 km/h	46%	0%	2
Sat 3p	Sunny	44°7° (likely 43°6° to 46°8°)	40°4°	0%	7 mph11 km/h from SE, gusts 6 mph9 km/h	42%	0%	2
Sat 4p	Sunny	44°7° (likely 44°7° to 47°8°)	41°5°	0%	6 mph10 km/h from SSE, gusts 6 mph10 km/h	41%	5%	1
Sat 5p	Sunny	45°7° (likely 43°6° to 46°8°)	42°6°	0%	6 mph10 km/h from SE, gusts 7 mph12 km/h	43%	0%	0
Sat 6p	Clear	40°4° (likely 40°4° to 43°6°)	37°3°	0%	5 mph8 km/h from ESE, gusts 7 mph12 km/h	59%	0%	0
Sat 7p	Clear	36°2° (likely 36°2° to 39°4°)	33°1°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	67%	0%	0
Sat 8p	Clear	34°1° (likely 34°1° to 37°3°)	34°1°	0%	2 mph3 km/h from SE, gusts 5 mph7 km/h	74%	0%	0
Sat 9p	Clear	29°−2° (likely 29°−2° to 35°2°)	25°−4°	0%	3 mph5 km/h from ENE, gusts 4 mph7 km/h	76%	0%	0
Sat 10p	Clear	27°−3° (likely 27°−3° to 34°1°)	23°−5°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	78%	4%	0
Sat 11p	Clear	26°−3° (likely 26°−3° to 32°0°)	20°−7°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	81%	3%	0
Sun 12a	Clear	25°−4° (likely 25°−4° to 32°0°)	18°−8°	0%	6 mph10 km/h from NW, gusts 3 mph5 km/h	81%	7%	0
Sun 1a	Clear	25°−4° (likely 25°−4° to 31°−1°)	17°−8°	0%	7 mph11 km/h from W, gusts 4 mph7 km/h	82%	7%	0
Sun 2a	Clear	24°−4° (likely 24°−4° to 31°−1°)	16°−9°	0%	7 mph11 km/h from W, gusts 5 mph8 km/h	81%	3%	0
Sun 3a	Clear	25°−4° (likely 25°−4° to 31°−1°)	17°−8°	0%	7 mph11 km/h from W, gusts 5 mph8 km/h	81%	2%	0
Sun 4a	Clear	25°−4° (likely 25°−4° to 32°0°)	18°−8°	0%	6 mph10 km/h from W, gusts 5 mph7 km/h	77%	3%	0
Sun 5a	Clear	25°−4° (likely 25°−4° to 32°0°)	19°−7°	0%	5 mph8 km/h from WNW, gusts 4 mph7 km/h	79%	1%	0
Sun 6a	Clear	25°−4° (likely 25°−4° to 32°0°)	19°−7°	0%	5 mph8 km/h from WNW, gusts 3 mph4 km/h	78%	0%	0
Sun 7a	Clear	25°−4° (likely 25°−4° to 32°0°)	19°−7°	0%	5 mph8 km/h from WNW, gusts 2 mph4 km/h	81%	0%	0
Sun 8a	Sunny	23°−5° (likely 23°−5° to 32°0°)	17°−8°	0%	5 mph8 km/h from NW, gusts 3 mph5 km/h	81%	0%	0
Sun 9a	Sunny	26°−3° (likely 26°−3° to 34°1°)	19°−7°	0%	6 mph10 km/h from W, gusts 3 mph4 km/h	76%	0%	0
Sun 10a	Sunny	32°0° (likely 31°−1° to 38°3°)	26°−3°	0%	6 mph10 km/h from ENE, gusts 2 mph3 km/h	68%	2%	1
Sun 11a	Sunny	36°2° (likely 36°2° to 42°6°)	30°−1°	0%	7 mph11 km/h from E, gusts 9 mph15 km/h	58%	10%	2
Sun 12p	Sunny	40°4° (likely 40°4° to 44°7°)	35°2°	0%	8 mph13 km/h from E, gusts 13 mph22 km/h	52%	10%	3
Sun 1p	Sunny	41°5° (likely 41°5° to 45°7°)	35°2°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	49%	0%	4
Sun 2p	Sunny	41°5° (likely 41°5° to 46°8°)	34°1°	0%	13 mph21 km/h from E, gusts 16 mph26 km/h	46%	0%	4
Sun 3p	Sunny	43°6° (likely 43°6° to 47°8°)	36°2°	0%	14 mph23 km/h from E, gusts 16 mph26 km/h	44%	0%	3
Sun 4p	Sunny	42°6° (likely 42°6° to 46°8°)	35°2°	0%	14 mph23 km/h from E, gusts 16 mph26 km/h	43%	1%	2
Sun 5p	Sunny	41°5° (likely 41°5° to 45°7°)	33°1°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	45%	0%	1
Sun 6p	Clear	38°3° (likely 38°3° to 41°5°)	31°−1°	0%	10 mph16 km/h from ESE, gusts 19 mph30 km/h	60%	0%	0
Sun 7p	Clear	33°1° (likely 33°1° to 37°3°)	25°−4°	0%	10 mph16 km/h from ESE, gusts 14 mph22 km/h	69%	5%	0
Sun 8p	Mostly clear	30°−1° (likely 30°−1° to 35°2°)	21°−6°	0%	10 mph16 km/h from ESE, gusts 9 mph14 km/h	78%	10%	0
Sun 9p	Partly cloudy	28°−2° (likely 28°−2° to 34°1°)	23°−5°	0%	5 mph8 km/h from SE, gusts 6 mph9 km/h	80%	30%	0
Sun 10p	Clear	27°−3° (likely 27°−3° to 33°1°)	22°−6°	0%	5 mph8 km/h from SE, gusts 4 mph7 km/h	82%	40%	0
Sun 11p	Partly cloudy	26°−3° (likely 26°−3° to 33°1°)	20°−7°	0%	5 mph8 km/h from SE, gusts 4 mph6 km/h	85%	46%	0
Mon 12a	Mostly cloudy	25°−4° (likely 25°−4° to 32°0°)	21°−6°	0%	3 mph5 km/h from ESE, gusts 4 mph7 km/h	85%	42%	0
Mon 1a	Mostly cloudy	24°−4° (likely 24°−4° to 31°−1°)	20°−7°	0%	3 mph5 km/h from ESE, gusts 5 mph7 km/h	89%	56%	0
Mon 2a	Cloudy	24°−4° (likely 24°−4° to 30°−1°)	20°−7°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	91%	57%	0
Mon 3a	Cloudy	24°−4° (likely 24°−4° to 30°−1°)	20°−7°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	92%	60%	0
Mon 4a	Fog	23°−5° (likely 23°−5° to 29°−2°)	18°−8°	0%	3 mph5 km/h from E, gusts 4 mph7 km/h	90%	52%	0
Mon 5a	Fog	23°−5° (likely 23°−5° to 29°−2°)	18°−8°	0%	3 mph5 km/h from E, gusts 4 mph7 km/h	94%	34%	0
Mon 6a	Fog	24°−4° (likely 23°−5° to 29°−2°)	24°−4°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	94%	41%	0
Mon 7a	Fog	22°−6° (likely 21°−6° to 29°−2°)	22°−6°	0%	2 mph3 km/h from SE, gusts 2 mph3 km/h	97%	39%	0
Mon 8a	Fog	23°−5° (likely 23°−5° to 30°−1°)	23°−5°	0%	2 mph3 km/h from SE, gusts 2 mph3 km/h	96%	35%	0
Mon 9a	Mostly cloudy	26°−3° (likely 25°−4° to 33°1°)	22°−6°	0%	3 mph5 km/h from SSE, gusts 2 mph3 km/h	92%	29%	0
Mon 10a	Mostly cloudy	30°−1° (likely 28°−2° to 36°2°)	26°−3°	0%	3 mph5 km/h from SSE, gusts 2 mph3 km/h	85%	26%	1
Mon 11a	Mostly cloudy	35°2° (likely 31°−1° to 38°3°)	32°0°	0%	3 mph5 km/h from SSE, gusts 4 mph7 km/h	77%	28%	2
Mon 12p	Partly sunny	39°4° (likely 34°1° to 41°5°)	36°2°	0%	5 mph8 km/h from SE, gusts 6 mph10 km/h	69%	23%	3

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 45°7°, low 23°−5°. Typical 53°12° / 27°−3°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 45°7°
  Dry
2. Evening
  6 PM–midnight
  Clear, 34°1°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 24°−4°
  Dry
Official NWS forecast
Today: Sunny, with a high near 45. South southeast wind around 7 mph.
Tonight: Mostly clear. Low around 23, with temperatures rising to around 25 overnight. North northwest wind 2 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–47°8°
Low, likely
23°−5°–29°−2°
Typical high / low
53°12° / 27°−3°
Wind
18 mph29 km/h, gusts 30 mph47 km/h
UV peak
4
Tomorrow, Oct 25. Mostly sunny. High 43°6°, low 21°−6°. Typical 53°12° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 30°−1°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 23°−5°
  Dry
Official NWS forecast
Day: Sunny. High near 43, with temperatures falling to around 41 in the afternoon. North northwest wind 5 to 15 mph.
Night: Patchy fog after 3am. Partly cloudy. Low around 21, with temperatures rising to around 23 overnight. East southeast wind 3 to 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–47°8°
Low, likely
21°−6°–31°−1°
Typical high / low
53°12° / 26°−3°
Wind
14 mph23 km/h, gusts 23 mph37 km/h
UV peak
4
Monday, Oct 26. Fog. High 45°7°, low 27°−3°. Typical 53°12° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Clear, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°0°
  30% chance
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny. High near 45, with temperatures falling to around 43 in the afternoon. Southeast wind 2 to 8 mph.
Night: Patchy fog between 9pm and midnight, then a slight chance of snow showers. Mostly cloudy, with a low around 27. Southeast wind 5 to 8 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–48°9°
Low, likely
22°−6°–28°−2°
Typical high / low
53°12° / 26°−3°
Wind
10 mph16 km/h, gusts 16 mph26 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 47°8°, low 26°−3°. Typical 52°11° / 26°−3°. Snow 0.05 in1.3 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 38°3°
  30% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 46°8°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 41°5°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow showers. Mostly cloudy. High near 47, with temperatures falling to around 44 in the afternoon. West wind 8 to 36 mph, with gusts as high as 44 mph. Chance of precipitation is 50%.
Night: Partly cloudy, with a low around 26. West wind 15 to 21 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
44°7°–49°9°
Low, likely
26°−3°–35°2°
Typical high / low
52°11° / 26°−3°
Wind
24 mph39 km/h, gusts 43 mph69 km/h
UV peak
2
Wednesday, Oct 28. Partly sunny. High 49°9°, low 24°−4°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 30°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny. High near 49, with temperatures falling to around 45 in the afternoon. West wind 5 to 13 mph.
Night: Partly cloudy, with a low around 24. Southwest wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
48°9°–51°11°
Low, likely
24°−4°–33°1°
Typical high / low
52°11° / 26°−3°
Wind
22 mph35 km/h, gusts 35 mph56 km/h
UV peak
4
Thursday, Oct 29. Mostly cloudy. High 46°8°, low 25°−4°. Typical 51°11° / 25°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 39°4°
  30% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Cloudy, 32°0°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny. High near 46, with temperatures falling to around 42 in the afternoon. Southeast wind 3 to 7 mph.
Night: A chance of rain and snow showers. Mostly cloudy, with a low around 25. South southeast wind around 7 mph. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–54°12°
Low, likely
25°−4°–31°−1°
Typical high / low
51°11° / 25°−4°
Wind
11 mph18 km/h, gusts 19 mph31 km/h
UV peak
3
Friday, Oct 30. Snow. High 45°7°, low 24°−4°. Typical 51°11° / 25°−4°. Snow 0.06 in1.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 38°3°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Cloudy, 35°1°
  30% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Cloudy, 31°−1°
  30% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow showers before noon. Partly sunny. High near 45, with temperatures falling to around 43 in the afternoon. South wind around 6 mph. Chance of precipitation is 20%.
Night: A slight chance of rain and snow showers. Mostly cloudy. Low around 24, with temperatures rising to around 26 overnight. North northwest wind 3 to 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
34°1°–45°7°
Low, likely
24°−4°–33°1°
Typical high / low
51°11° / 25°−4°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
2
Saturday, Oct 31. Snow. High 38°3°, low 27°−3°. Typical 51°11° / 24°−4°. Snow < 1 in< 2 cm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Rain, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 36°2°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 32°0°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
36°2°–40°4°
Low, likely
23°−5°–33°1°
Typical high / low
51°11° / 24°−4°
Wind
20 mph33 km/h, gusts 26 mph42 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 43°6°, low 29°−2°. Typical 50°10° / 24°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°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
41°5°–46°8°
Low, likely
24°−4°–32°0°
Typical high / low
50°10° / 24°−4°
Wind
26 mph42 km/h, gusts 44 mph70 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 45°7°, low 33°1°. Typical 50°10° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°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
36°2°–53°12°
Low, likely
29°−2°–37°3°
Typical high / low
50°10° / 24°−4°
Wind
20 mph32 km/h, gusts 56 mph90 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 45°, low 23°.
Tomorrow
Dry, high 43°, low 21°.
Monday
Dry, high 45°, low 27°.
Rest of week
Highs 38–49°; chance of precipitation on Tuesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (BYZ) (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

Musselshell River near Martinsdale

9.2 mi

Level: 1.4 ft

Reading from Sat 12:15 PM · NWS gauge page

Musselshell River near Harlowton

11 mi

Below flood stage

Level: 2.9 ft

Reading from Sat 12 PM · NWS gauge page

Sweet Grass Creek at Tronrud Bridge near Melville

18 mi

Level: 0.9 ft
Flow: 8 cfs

Reading from Sat 1 PM · 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: 24°−4°

Overnight low near 24°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 63% less heating than a typical week.

This week 67Typical 182

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

Comfort

Dry air outside (dew point 27°F).

Open the windows?

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

Is this typical?

Harlowton · official normals 1991–2020 · records 1948–2026

Oct 24, today vs a typical year

Today’s expected high is 8°4° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 27 min; Losing 3 min 8 s a day; shortest Dec 21, 1 h 52 min less
Golden hour: 5:35–6:36 PM; Morning 7:31–8:32 AM
Blue hour: 6:36–6:48 PM; Morning 7:19–7:31 AM; first light 7:19 AM

Stars tonight? Fair

Clear 6:48 PM–7:20 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:04 AM · rises 5:18 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from Twodot. The highest point on the skyline is about 11,000 ft, 29 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.