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As of 17:45 MDT

Weather in Lyman, WY

66°Current weather

Lyman, Friday, 9 October, 17:45

Partly cloudy. Feels like 64°. High 72°, low 46°.

Pressure29.71 inHg
Wind19.6 mph W
Humidity33%
Visibility6.2 mi
Dew point36°

Monthly outlook for Lyman, WY: average high 61.6°, average low 43°. That is 3.9° above the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 10 October (72.5°), the coolest 14 October (36°).

61.6°/43°
Average high / low
+3.9°
Above normal
6 / 4
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October60.5°55.7°+2.7°
19 October – 28 October63.4°51.5°+6.6°
29 October – 7 Novemberat normal44.8°—

October records over 66 years

82.2°4 October 2024All-time high
-11.4°30 October 2019All-time low
Sat, 1073° / 52°0.03Light rain
73 °Light rain

Lyman, Saturday, 10 October

Light rain. High 73°, low 52°.

Pressure29.59 inHg
Wind19.3 mph SW
Humidity27%
Visibility6.2 mi
Dew point34°
Sun, 1163° / 49°0.13Light rain
63 °Light rain

Lyman, Sunday, 11 October

Light rain. High 63°, low 49°.

Pressure29.62 inHg
Wind3.5 mph N
Humidity80%
Visibility6.2 mi
Dew point47°
Mon, 1255° / 42°0.22Light rain
55 °Light rain

Lyman, Monday, 12 October

Light rain. High 55°, low 42°.

Pressure29.80 inHg
Wind5.3 mph E
Humidity55%
Visibility5.0 mi
Dew point39°
Tue, 1351° / 41°0.37Light rain
51 °Light rain

Lyman, Tuesday, 13 October

Light rain. High 51°, low 41°.

Pressure29.83 inHg
Wind1.6 mph W
Humidity73%
Visibility6.0 mi
Dew point41°
Wed, 1447° / 36°0.23Light rain
47 °Light rain

Lyman, Wednesday, 14 October

Light rain. High 47°, low 36°.

Pressure30.12 inHg
Wind11.7 mph W
Humidity90%
Visibility—
Dew point36°
Thu, 1555° / 38°0Partly cloudy
55 °Partly cloudy

Lyman, Thursday, 15 October

Partly cloudy. High 55°, low 38°.

Pressure30.21 inHg
Wind16.4 mph NW
Humidity49%
Visibility—
Dew point32°
Fri, 1660° / 40°0Partly cloudy
60 °Partly cloudy

Lyman, Friday, 16 October

Partly cloudy. High 60°, low 40°.

Pressure30.39 inHg
Wind8.2 mph NE
Humidity29%
Visibility—
Dew point21°
Sat, 1766° / 39°0Partly cloudy
66 °Partly cloudy

Lyman, Saturday, 17 October

Partly cloudy. High 66°, low 39°.

Pressure30.27 inHg
Wind17.4 mph W
Humidity22%
Visibility—
Dew point16°
Sun, 1865° / 43°0Overcast
65 °Overcast

Lyman, Sunday, 18 October

Overcast. High 65°, low 43°.

Pressure30.15 inHg
Wind14.5 mph W
Humidity21%
Visibility—
Dew point19°
Mon, 1965° / 43°0Clear
65 °Clear

Lyman, Monday, 19 October

Clear. High 65°, low 43°.

Pressure30.12 inHg
Wind7.3 mph SW
Humidity21%
Visibility—
Dew point17°
Tue, 2066° / 45°0Clear
66 °Clear

Lyman, Tuesday, 20 October

Clear. High 66°, low 45°.

Pressure30.06 inHg
Wind12.2 mph NW
Humidity20%
Visibility—
Dew point19°
Wed, 2164° / 45°0Clear
64 °Clear

Lyman, Wednesday, 21 October

Clear. High 64°, low 45°.

Pressure30.12 inHg
Wind9.8 mph E
Humidity28%
Visibility—
Dew point25°
Thu, 2266° / 46°0Mostly clear
66 °Mostly clear

Lyman, Thursday, 22 October

Mostly clear. High 66°, low 46°.

Pressure29.91 inHg
Wind20.7 mph W
Humidity26%
Visibility—
Dew point27°
Fri, 2360° / 43°0.17Rain
60 °Rain

Lyman, Friday, 23 October

Rain. High 60°, low 43°.

Pressure29.71 inHg
Wind10.1 mph NW
Humidity31%
Visibility—
Dew point27°
Sat, 2459° / 41°0.04Light rain
59 °Light rain

Lyman, Saturday, 24 October

Light rain. High 59°, low 41°.

Pressure29.83 inHg
Wind9.5 mph NE
Humidity60%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2551° / 29°0.04Climate normal
51 °Climate normal

Lyman, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high51°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2014)
Record low4° (2020)
Mon, 2650° / 30°0.04Climate normal
50 °Climate normal

Lyman, Monday, 26 October

Climate normal for this date — 60-year average.

Average high50°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high66° (1977)
Record low-6° (2020)
Tue, 2749° / 29°0.04Climate normal
49 °Climate normal

Lyman, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2024)
Record low9° (1996)
Wed, 2849° / 29°0.06Climate normal
49 °Climate normal

Lyman, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (2018)
Record low2° (1996)
Thu, 2947° / 28°0.08Climate normal
47 °Climate normal

Lyman, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.08 in
Chance of precipitation33%
Record high65° (1964)
Record low0° (2019)
Fri, 3045° / 27°0.06Climate normal
45 °Climate normal

Lyman, Friday, 30 October

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.06 in
Chance of precipitation30%
Record high63° (2001)
Record low-11° (2019)
Sat, 3144° / 27°0.04Climate normal
44 °Climate normal

Lyman, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation33%
Record high64° (2014)
Record low-3° (1991)
Sun, 0145° / 27°0.04Climate normal
45 °Climate normal

Lyman, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation25%
Record high62° (1988)
Record low-1° (1972)
Mon, 0244° / 25°0.06Climate normal
44 °Climate normal

Lyman, Monday, 2 November

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (2025)
Record low0° (1991)
Tue, 0344° / 25°0.04Climate normal
44 °Climate normal

Lyman, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation15%
Record high64° (2020)
Record low-4° (1991)
Wed, 0445° / 25°0.02Climate normal
45 °Climate normal

Lyman, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high64° (2020)
Record low-5° (1973)
Thu, 0545° / 26°0.03Climate normal
45 °Climate normal

Lyman, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.03 in
Chance of precipitation13%
Record high64° (2020)
Record low-1° (1961)
Fri, 0644° / 26°0.03Climate normal
44 °Climate normal

Lyman, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation20%
Record high65° (2020)
Record low-4° (1961)
Sat, 0744° / 25°0.02Climate normal
44 °Climate normal

Lyman, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (1999)
Record low-7° (1990)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Lyman, WY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Lyman, WY since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.