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As of 20:54 MDT

Weather in Lyman, WY

43°Current weather

Lyman, Wednesday, 14 October, 20:54

Overcast. Feels like 36°. High 46°, low 36°.

Pressure30.15 inHg
Wind17.3 mph W
Humidity77%
Visibility6.2 mi
Dew point37°

Monthly outlook for Lyman, WY: average high 51.2°, average low 32.7°. That is 0.5° below the climate normal for October. Precipitation is expected on 5 days (about 0.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (62.7°), the coolest 25 October (23°).

51.2°/32.7°
Average high / low
−0.5°
Below normal
5 / 4
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October53°53.6°-0.4°
24 October – 2 November48.1°47.6°+0.3°
3 November – 12 Novemberat normal42.9°—

October records over 66 years

82.2°4 October 2024All-time high
-11.4°30 October 2019All-time low
Thu, 1550° / 32°0Clear
50 °Clear

Lyman, Thursday, 15 October

Clear. High 50°, low 32°.

Pressure30.53 inHg
Wind12.3 mph E
Humidity52%
Visibility6.2 mi
Dew point31°
Fri, 1652° / 30°0Clear
52 °Clear

Lyman, Friday, 16 October

Clear. High 52°, low 30°.

Pressure30.65 inHg
Wind6.6 mph NE
Humidity58%
Visibility6.2 mi
Dew point32°
Sat, 1763° / 30°0Clear
63 °Clear

Lyman, Saturday, 17 October

Clear. High 63°, low 30°.

Pressure30.36 inHg
Wind2.1 mph NE
Humidity45%
Visibility6.2 mi
Dew point31°
Sun, 1859° / 32°0Partly cloudy
59 °Partly cloudy

Lyman, Sunday, 18 October

Partly cloudy. High 59°, low 32°.

Pressure30.18 inHg
Wind3.2 mph NE
Humidity51%
Visibility6.2 mi
Dew point34°
Mon, 1960° / 33°0Clear
60 °Clear

Lyman, Monday, 19 October

Clear. High 60°, low 33°.

Pressure30.09 inHg
Wind6.8 mph NE
Humidity52%
Visibility—
Dew point33°
Tue, 2059° / 38°0.05Light rain
59 °Light rain

Lyman, Tuesday, 20 October

Light rain. High 59°, low 38°.

Pressure29.94 inHg
Wind5.7 mph S
Humidity62%
Visibility—
Dew point38°
Wed, 2159° / 43°0.01Light rain
59 °Light rain

Lyman, Wednesday, 21 October

Light rain. High 59°, low 43°.

Pressure29.77 inHg
Wind15 mph S
Humidity46%
Visibility—
Dew point32°
Thu, 2245° / 38°0.06Light rain
45 °Light rain

Lyman, Thursday, 22 October

Light rain. High 45°, low 38°.

Pressure29.80 inHg
Wind24.2 mph W
Humidity78%
Visibility—
Dew point34°
Fri, 2336° / 29°0.13Snow
36 °Snow

Lyman, Friday, 23 October

Snow. High 36°, low 29°.

Pressure30.18 inHg
Wind24.2 mph W
Humidity48%
Visibility—
Dew point16°
Sat, 2435° / 25°0.05Light snow
35 °Light snow

Lyman, Saturday, 24 October

Light snow. High 35°, low 25°.

Pressure30.47 inHg
Wind14.2 mph W
Humidity52%
Visibility—
Dew point15°
Sun, 2541° / 23°0Clear
41 °Clear

Lyman, Sunday, 25 October

Clear. High 41°, low 23°.

Pressure30.56 inHg
Wind18 mph W
Humidity32%
Visibility—
Dew point9°
Mon, 2646° / 29°0Overcast
46 °Overcast

Lyman, Monday, 26 October

Overcast. High 46°, low 29°.

Pressure30.21 inHg
Wind14.6 mph W
Humidity26%
Visibility—
Dew point9°
Tue, 2752° / 32°0Partly cloudy
52 °Partly cloudy

Lyman, Tuesday, 27 October

Partly cloudy. High 52°, low 32°.

Pressure30.09 inHg
Wind15.9 mph W
Humidity34%
Visibility—
Dew point18°
Wed, 2855° / 38°0Partly cloudy
55 °Partly cloudy

Lyman, Wednesday, 28 October

Partly cloudy. High 55°, low 38°.

Pressure29.88 inHg
Wind24 mph W
Humidity37%
Visibility—
Dew point27°
Thu, 2960° / 34°0Overcast
60 °Overcast

Lyman, Thursday, 29 October

Overcast. High 60°, low 34°.

Pressure29.94 inHg
Wind14.2 mph W
Humidity21%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0843° / 26°0.06Climate normal
43 °Climate normal

Lyman, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.06 in
Chance of precipitation30%
Record high61° (1978)
Record low4° (2015)
Mon, 0942° / 24°0.07Climate normal
42 °Climate normal

Lyman, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.07 in
Chance of precipitation27%
Record high59° (2016)
Record low3° (2011)
Tue, 1040° / 23°0.06Climate normal
40 °Climate normal

Lyman, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°
Average low23°
Average precipitation0.06 in
Chance of precipitation27%
Record high58° (2025)
Record low2° (1992)
Wed, 1140° / 23°0.04Climate normal
40 °Climate normal

Lyman, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°
Average low23°
Average precipitation0.04 in
Chance of precipitation23%
Record high58° (2025)
Record low0° (2000)
Thu, 1241° / 23°0.05Climate normal
41 °Climate normal

Lyman, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°
Average low23°
Average precipitation0.05 in
Chance of precipitation23%
Record high60° (1999)
Record low-4° (2014)

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.