Observed 11:25 PM MDT at KEVW

Lyman, WY weather

Clear and 36°2°.

Mostly agree

Now 36°2°

Clear · Feels like 32°0°

Wind: 5 mph7 km/h; From the north. Light through 11 AM
Dew point: 30°−1°; Dry, static shocks likely
UV tomorrow: 5Moderate; Moderate 12–5 PM · peak 5
Pressure: 30.23 inHg1024 hPa; Rising slowly · +0.02 inHg+0.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (36°2° then, 36°2° now)

Good hours for

Below freezing tonight 3–9 AM (low 29°−2°)
Above 40°4° tomorrow by noon
Below 40°4° tomorrow night after 9 PM
Below freezing tomorrow night 3–9 AM (low 29°−2°)
Fog Monday 9–11 AM

TonightDown to 31°−1° by 4 AM · freezing, low 31°−1° · Clear
Tomorrow morningUp to 39°4° by 11 AM · Mostly cloudy · rain chance 30% · freezing, low 29°−2°
Tomorrow afternoonUp to 49°9° by 5 PM · rain chance 20% · Mostly cloudy
Tomorrow nightDown to 31°−1° by 4 AM · freezing, low 31°−1° · Partly cloudy
Monday morningUp to 43°6° by 11 AM · freezing, low 29°−2° · Partly cloudy
Monday afternoonUp to 55°13° by 4 PM · Partly cloudy
Monday nightDown to 39°4° by 10 PM · 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 11p	Clear	36°2° (likely 33°1° to 37°3°)	30°−1°	0%	7 mph11 km/h from ENE, gusts 4 mph7 km/h	74%	12%	0
Sun 12a	Clear	35°2° (likely 30°−1° to 36°2°)	35°2°	0%	2 mph3 km/h from NNE, gusts 5 mph8 km/h	77%	12%	0
Sun 1a	Clear	34°1° (likely 28°−2° to 35°2°)	34°1°	0%	2 mph3 km/h from NNE, gusts 6 mph10 km/h	81%	21%	0
Sun 2a	Clear	33°1° (likely 27°−3° to 34°1°)	33°1°	0%	2 mph3 km/h from NNE, gusts 4 mph6 km/h	84%	30%	0
Sun 3a	Mostly cloudy	32°0° (likely 27°−3° to 33°1°)	32°0°	5%	0 mph0 km/h, gusts 4 mph6 km/h	86%	42%	0
Sun 4a	Clear	31°−1° (likely 26°−3° to 32°0°)	31°−1°	5%	0 mph0 km/h, gusts 3 mph5 km/h	86%	6%	0
Sun 5a	Clear	31°−1° (likely 25°−4° to 32°0°)	31°−1°	5%	0 mph0 km/h, gusts 4 mph6 km/h	88%	13%	0
Sun 6a	Mostly clear	31°−1° (likely 24°−4° to 31°−1°)	31°−1°	20%	0 mph0 km/h, gusts 5 mph7 km/h	89%	22%	0
Sun 7a	Snow	29°−2° (likely 24°−4° to 31°−1°)	29°−2°	20%	0 mph0 km/h, gusts 3 mph4 km/h	92%	62%	0
Sun 8a	Snow	30°−1° (likely 25°−4° to 31°−1°)	30°−1°	20%	0 mph0 km/h, gusts 4 mph6 km/h	93%	79%	0
Sun 9a	Cloudy	33°1° (likely 28°−2° to 33°1°)	33°1°	30%	2 mph3 km/h from ENE, gusts 3 mph4 km/h	88%	95%	0
Sun 10a	Cloudy	36°2° (likely 33°1° to 36°2°)	36°2°	30%	2 mph3 km/h from ENE, gusts 3 mph6 km/h	86%	96%	1
Sun 11a	Snow	39°4° (likely 36°2° to 39°4°)	39°4°	30%	2 mph3 km/h from ENE, gusts 4 mph6 km/h	81%	95%	2
Sun 12p	Cloudy	43°6° (likely 38°3° to 43°6°)	43°6°	20%	2 mph3 km/h from ENE, gusts 4 mph6 km/h	74%	98%	4
Sun 1p	Cloudy	44°7° (likely 40°4° to 44°7°)	44°7°	20%	2 mph3 km/h from ENE, gusts 6 mph10 km/h	70%	96%	4
Sun 2p	Cloudy	45°7° (likely 42°6° to 46°8°)	45°7°	20%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	69%	76%	5
Sun 3p	Mostly sunny	46°8° (likely 43°6° to 47°8°)	45°7°	10%	3 mph5 km/h from ENE, gusts 5 mph8 km/h	65%	58%	4
Sun 4p	Mostly sunny	47°8° (likely 43°6° to 48°9°)	46°8°	10%	3 mph5 km/h from ENE, gusts 5 mph8 km/h	64%	54%	3
Sun 5p	Cloudy	49°9° (likely 43°6° to 49°9°)	48°9°	10%	3 mph5 km/h from ENE, gusts 4 mph6 km/h	62%	79%	1
Sun 6p	Cloudy	47°8° (likely 42°6° to 47°8°)	46°8°	10%	3 mph5 km/h from NE, gusts 3 mph6 km/h	66%	68%	0
Sun 7p	Partly cloudy	44°7° (likely 39°4° to 44°7°)	42°6°	10%	3 mph5 km/h from NE, gusts 3 mph5 km/h	72%	59%	0
Sun 8p	Mostly clear	42°6° (likely 37°3° to 42°6°)	40°4°	10%	3 mph5 km/h from NE, gusts 2 mph3 km/h	79%	52%	0
Sun 9p	Partly cloudy	39°4° (likely 35°2° to 41°5°)	39°4°	0%	2 mph3 km/h from SSE, gusts 2 mph3 km/h	82%	53%	0
Sun 10p	Mostly clear	38°3° (likely 33°1° to 40°4°)	38°3°	0%	2 mph3 km/h from SSE, gusts 2 mph3 km/h	84%	47%	0
Sun 11p	Cloudy	37°3° (likely 33°1° to 38°3°)	37°3°	0%	2 mph3 km/h from SSE, gusts 3 mph5 km/h	87%	67%	0
Mon 12a	Cloudy	36°2° (likely 31°−1° to 37°3°)	36°2°	0%	1 mph2 km/h from SE, gusts 3 mph6 km/h	88%	61%	0
Mon 1a	Mostly clear	35°2° (likely 30°−1° to 36°2°)	35°2°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	91%	35%	0
Mon 2a	Clear	33°1° (likely 28°−2° to 35°2°)	33°1°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	94%	23%	0
Mon 3a	Clear	32°0° (likely 27°−3° to 35°2°)	32°0°	0%	1 mph2 km/h from WSW, gusts 4 mph6 km/h	92%	20%	0
Mon 4a	Clear	31°−1° (likely 26°−3° to 34°1°)	31°−1°	0%	1 mph2 km/h from WSW, gusts 4 mph6 km/h	92%	14%	0
Mon 5a	Clear	31°−1° (likely 25°−4° to 34°1°)	31°−1°	0%	1 mph2 km/h from WSW, gusts 2 mph3 km/h	94%	17%	0
Mon 6a	Clear	30°−1° (likely 24°−4° to 34°1°)	30°−1°	0%	1 mph2 km/h from SW, gusts 3 mph4 km/h	93%	17%	0
Mon 7a	Clear	29°−2° (likely 24°−4° to 33°1°)	29°−2°	0%	1 mph2 km/h from SW, gusts 2 mph3 km/h	94%	21%	0
Mon 8a	Partly sunny	30°−1° (likely 24°−4° to 33°1°)	30°−1°	0%	1 mph2 km/h from SW, gusts 2 mph3 km/h	92%	57%	0
Mon 9a	Fog	33°1° (likely 26°−3° to 34°1°)	33°1°	0%	2 mph3 km/h from SSW, gusts 2 mph3 km/h	88%	63%	0
Mon 10a	Fog	37°3° (likely 31°−1° to 37°3°)	37°3°	0%	2 mph3 km/h from SSW, gusts 2 mph3 km/h	82%	59%	2
Mon 11a	Mostly cloudy	43°6° (likely 36°2° to 43°6°)	43°6°	0%	2 mph3 km/h from SSW, gusts 4 mph6 km/h	74%	55%	3
Mon 12p	Mostly sunny	48°9° (likely 42°6° to 48°9°)	48°9°	0%	1 mph2 km/h from ENE, gusts 5 mph7 km/h	66%	55%	4
Mon 1p	Mostly sunny	51°11° (likely 46°8° to 51°11°)	51°11°	0%	1 mph2 km/h from ENE, gusts 8 mph12 km/h	59%	46%	5
Mon 2p	Mostly sunny	53°12° (likely 50°10° to 53°12°)	53°12°	0%	1 mph2 km/h from ENE, gusts 7 mph12 km/h	52%	19%	5
Mon 3p	Mostly sunny	54°12° (likely 52°11° to 54°12°)	54°12°	0%	1 mph2 km/h from NNE, gusts 8 mph14 km/h	48%	39%	4
Mon 4p	Mostly sunny	55°13° (likely 52°11° to 55°13°)	55°13°	0%	1 mph2 km/h from NNE, gusts 8 mph13 km/h	46%	14%	3
Mon 5p	Sunny	54°12° (likely 51°11° to 55°13°)	54°12°	0%	1 mph2 km/h from NNE, gusts 8 mph12 km/h	47%	13%	2
Mon 6p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	5%	3 mph5 km/h from E, gusts 8 mph13 km/h	50%	3%	1
Mon 7p	Clear	49°9° (likely 42°6° to 49°9°)	48°9°	5%	3 mph5 km/h from E, gusts 7 mph11 km/h	56%	7%	0
Mon 8p	Mostly clear	45°7° (likely 37°3° to 47°8°)	44°7°	5%	3 mph5 km/h from E, gusts 6 mph9 km/h	63%	24%	0
Mon 9p	Mostly clear	41°5° (likely 33°1° to 45°7°)	36°2°	5%	8 mph13 km/h from S, gusts 5 mph8 km/h	69%	67%	0
Mon 10p	Mostly clear	39°4° (likely 30°−1° to 44°7°)	33°1°	5%	8 mph13 km/h from S, gusts 6 mph9 km/h	72%	69%	0

Days ahead

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

Today, Oct 24. Cloudy. High 47°8°, low 29°−2°. Typical 53°12° / 28°−2°. Dry. Mostly agree.
1. Overnight
  midnight–6 AM
  Mostly cloudy, 31°−1°
  Dry
Official NWS forecast
Tonight: Mostly cloudy. Low around 29, with temperatures rising to around 31 overnight. North northeast wind 0 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–49°9°
Low, likely
27°−3°–29°−2°
Typical high / low
53°12° / 28°−2°
Wind
12 mph19 km/h, gusts 23 mph36 km/h
UV peak
4
Tomorrow, Oct 25. Snow. High 50°10°, low 29°−2°. Typical 52°11° / 28°−2°. Snow 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  30% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 49°9°
  20% chance
3. Evening
  6 PM–midnight
  Partly cloudy, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Official NWS forecast
Day: A chance of rain and snow before 3pm. Mostly cloudy, with a high near 50. Northeast wind 0 to 3 mph. Chance of precipitation is 30%.
Night: Mostly cloudy. Low around 29, with temperatures rising to around 31 overnight. Southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–50°10°
Low, likely
23°−5°–30°−1°
Typical high / low
52°11° / 28°−2°
Wind
5 mph9 km/h, gusts 13 mph21 km/h
UV peak
5
Monday, Oct 26. Partly sunny. High 56°13°, low 31°−1°. Typical 52°11° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  50% chance · 0.1 in0.4 cm
Official NWS forecast
Day: Mostly sunny, with a high near 56. Southeast wind around 2 mph.
Night: A chance of rain and snow after midnight. Partly cloudy, with a low around 31. South southeast wind 3 to 9 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–56°13°
Low, likely
22°−6°–33°1°
Typical high / low
52°11° / 28°−2°
Wind
13 mph20 km/h
UV peak
5
Tuesday, Oct 27. Snow. High 51°11°, low 26°−3°. Typical 51°11° / 27°−3°. Snow 0–1 in0–3 cm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 34°1°
  50% chance
2. Afternoon
  noon–6 PM
  Sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 31°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow before noon. Mostly sunny, with a high near 51. Chance of precipitation is 30%.
Night: Mostly clear, with a low around 26.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–54°12°
Low, likely
26°−3°–36°2°
Typical high / low
51°11° / 27°−3°
Wind
22 mph35 km/h, gusts 32 mph51 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 55°13°, low 30°−1°. Typical 51°11° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 41°5°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 31°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 55.
Night: Partly cloudy, with a low around 30.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–55°13°
Low, likely
19°−7°–37°3°
Typical high / low
51°11° / 27°−3°
Wind
20 mph33 km/h, gusts 28 mph45 km/h
UV peak
4
Thursday, Oct 29. Mostly cloudy. High 59°15°, low 33°1°. Typical 50°10° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 36°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 59.
Night: Mostly cloudy, with a low around 33.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–59°15°
Low, likely
23°−5°–36°2°
Typical high / low
50°10° / 27°−3°
Wind
11 mph18 km/h, gusts 18 mph28 km/h
UV peak
4
Friday, Oct 30. Rain. High 55°13°, low 32°0°. Typical 50°10° / 26°−3°. Rain 0.08 in2 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 51°11°
  30% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 45°7°
  30% chance · 0.04 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 36°2°
  30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain. Partly sunny, with a high near 55.
Night: A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 32.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–57°14°
Low, likely
30°−1°–40°4°
Typical high / low
50°10° / 26°−3°
Wind
14 mph22 km/h, gusts 21 mph33 km/h
UV peak
3
Saturday, Oct 31. Snow. High 51°11°, low 33°1°. Typical 49°9° / 26°−3°. Snow 0–1 in0–3 cm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 37°3°
  30% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 47°8°
  40% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Cloudy, 40°5°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 31°0°
  30% chance · 0.02 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Partly sunny, with a high near 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
43°6°–52°11°
Low, likely
27°−3°–38°3°
Typical high / low
49°9° / 26°−3°
Wind
19 mph30 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 45°7°, low 32°0°. Typical 49°9° / 26°−3°. Rain 0.1 in2.5 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 33°0°
  20% chance
2. Afternoon
  noon–6 PM
  Drizzle, 44°7°
  30% chance · 0.03 in0.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 39°4°
  30% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Cloudy, 27°−3°
  30% chance
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°–54°12°
Low, likely
15°−9°–42°6°
Typical high / low
49°9° / 26°−3°
Wind
18 mph29 km/h, gusts 31 mph50 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 44°7°, low 27°−3°. Typical 48°9° / 26°−3°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 29°−1°
  30% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 44°7°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 35°1°
  20% chance
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
39°4°–50°10°
Low, likely
15°−9°–34°1°
Typical high / low
48°9° / 26°−3°
Wind
30 mph49 km/h, gusts 41 mph65 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 47°, low 29°.
Tomorrow
Dry, high 50°, low 29°, warming up.
Monday
Dry, high 56°, low 31°, warming up.
Rest of week
Mostly dry, highs 44–59°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (SLC) (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 Fork Smiths Fork near Robertson

20 mi

Below flood stage

Level: 3.6 ft
Flow: 15 cfs

Forecast peak 3.6 ft Sun 12 AM

Reading from Sat 10:15 PM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 50Typical 180

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 38
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 25 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 30°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?

Church Buttes Gas Plant · official normals 1991–2020 · records 1891–2026

Oct 24, today vs a typical year

Today’s expected high is 6°3° colder than typical.

Last 7 days vs normal

—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24
—SunOct 25

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

Sun & moon

Sun

Daylight: 10 h 43 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:48–6:44 PM; Morning 7:26–8:21 AM
Blue hour: 6:44–6:54 PM; Morning 7:15–7:26 AM; first light 7:15 AM

Stars tonight? Fair

Mostly clear 11:42 PM–2 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

99% lit · growing

Today: sets 6:00 AM · rises 5:26 PM
Full moon: Oct 25
New moon: Nov 9

Looking south from Lyman. The highest point on the skyline is about 13,300 ft, 35 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.