EN
English Español

As of 13:03 MDT

Weather in Lyman, WY

57°Current weather

Lyman, Monday, 12 October, 13:03

Overcast. Feels like 54°. High 57°, low 42°.

Pressure29.74 inHg
Wind17.3 mph W
Humidity50%
Visibility3.6 mi
Dew point39°

Monthly outlook for Lyman, WY: average high 53.2°, average low 36.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 19 October (63.3°), the coolest 16 October (28.1°).

53.2°/36.1°
Average high / low
+0.1°
Above normal
5 / 4
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October54.9°54.4°+0.3°
22 October – 31 October50.4°49°+0.8°
1 November – 10 Novemberat normal43.7°—

October records over 66 years

82.2°4 October 2024All-time high
-11.4°30 October 2019All-time low
Tue, 1345° / 34°0.14Light rain
45 °Light rain

Lyman, Tuesday, 13 October

Light rain. High 45°, low 34°.

Pressure29.91 inHg
Wind7.7 mph N
Humidity76%
Visibility6.2 mi
Dew point39°
Wed, 1447° / 35°0.02Light rain
47 °Light rain

Lyman, Wednesday, 14 October

Light rain. High 47°, low 35°.

Pressure30.09 inHg
Wind5.6 mph NE
Humidity78%
Visibility4.7 mi
Dew point38°
Thu, 1549° / 37°0.03Light rain
49 °Light rain

Lyman, Thursday, 15 October

Light rain. High 49°, low 37°.

Pressure30.47 inHg
Wind13.9 mph SE
Humidity55%
Visibility6.2 mi
Dew point33°
Fri, 1651° / 28°0Clear
51 °Clear

Lyman, Friday, 16 October

Clear. High 51°, low 28°.

Pressure30.59 inHg
Wind10.5 mph NE
Humidity59%
Visibility6.2 mi
Dew point26°
Sat, 1759° / 29°0Overcast
59 °Overcast

Lyman, Saturday, 17 October

Overcast. High 59°, low 29°.

Pressure30.18 inHg
Wind10.1 mph W
Humidity46%
Visibility—
Dew point28°
Sun, 1863° / 41°0Mostly clear
63 °Mostly clear

Lyman, Sunday, 18 October

Mostly clear. High 63°, low 41°.

Pressure29.94 inHg
Wind12.5 mph W
Humidity25%
Visibility—
Dew point21°
Mon, 1963° / 42°0Clear
63 °Clear

Lyman, Monday, 19 October

Clear. High 63°, low 42°.

Pressure29.97 inHg
Wind9.6 mph S
Humidity27%
Visibility—
Dew point23°
Tue, 2061° / 46°0.01Light rain
61 °Light rain

Lyman, Tuesday, 20 October

Light rain. High 61°, low 46°.

Pressure29.62 inHg
Wind24.7 mph SW
Humidity25%
Visibility—
Dew point23°
Wed, 2154° / 41°0.23Rain
54 °Rain

Lyman, Wednesday, 21 October

Rain. High 54°, low 41°.

Pressure29.59 inHg
Wind7.3 mph SE
Humidity50%
Visibility—
Dew point32°
Thu, 2252° / 34°0.04Light rain
52 °Light rain

Lyman, Thursday, 22 October

Light rain. High 52°, low 34°.

Pressure29.85 inHg
Wind18.7 mph E
Humidity36%
Visibility—
Dew point20°
Fri, 2341° / 34°0.13Snow
41 °Snow

Lyman, Friday, 23 October

Snow. High 41°, low 34°.

Pressure29.91 inHg
Wind30 mph W
Humidity67%
Visibility—
Dew point28°
Sat, 2446° / 35°0Clear
46 °Clear

Lyman, Saturday, 24 October

Clear. High 46°, low 35°.

Pressure30.27 inHg
Wind28.4 mph W
Humidity50%
Visibility—
Dew point26°
Sun, 2551° / 31°0Clear
51 °Clear

Lyman, Sunday, 25 October

Clear. High 51°, low 31°.

Pressure30.53 inHg
Wind10.4 mph E
Humidity47%
Visibility—
Dew point25°
Mon, 2654° / 33°0Clear
54 °Clear

Lyman, Monday, 26 October

Clear. High 54°, low 33°.

Pressure30.45 inHg
Wind5.7 mph N
Humidity24%
Visibility—
Dew point12°
Tue, 2759° / 37°0Overcast
59 °Overcast

Lyman, Tuesday, 27 October

Overcast. High 59°, low 37°.

Pressure30.33 inHg
Wind5.7 mph NE
Humidity21%
Visibility—
Dew point12°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.