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As of 23:58 MDT

Weather in Lyman, WY

62°Current weather

Lyman, Thursday, 8 October, 23:58

Clear. Feels like 59°. High 75°, low 47°.

Pressure29.97 inHg
Wind11.5 mph W
Humidity33%
Visibility6.2 mi
Dew point33°

Monthly outlook for Lyman, WY: average high 57.5°, average low 39.6°. That is 1.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 10 October (75°), the coolest 16 October (26.4°).

57.5°/39.6°
Average high / low
+1.4°
Above normal
6 / 3
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October57.4°56.1°+0.7°
18 October – 27 October57.6°51.9°+3.2°
28 October – 6 Novemberat normal45.3°—

October records over 66 years

82.2°4 October 2024All-time high
-11.4°30 October 2019All-time low
Fri, 0975° / 50°0Mostly clear
75 °Mostly clear

Lyman, Friday, 9 October

Mostly clear. High 75°, low 50°.

Pressure29.83 inHg
Wind11.7 mph W
Humidity22%
Visibility6.2 mi
Dew point30°
Sat, 1075° / 53°0.04Light rain
75 °Light rain

Lyman, Saturday, 10 October

Light rain. High 75°, low 53°.

Pressure29.59 inHg
Wind20.4 mph SW
Humidity24%
Visibility6.2 mi
Dew point31°
Sun, 1162° / 48°0.07Light rain
62 °Light rain

Lyman, Sunday, 11 October

Light rain. High 62°, low 48°.

Pressure29.65 inHg
Wind7.7 mph E
Humidity82%
Visibility6.2 mi
Dew point48°
Mon, 1259° / 47°0.07Light rain
59 °Light rain

Lyman, Monday, 12 October

Light rain. High 59°, low 47°.

Pressure29.77 inHg
Wind10.3 mph SW
Humidity33%
Visibility6.2 mi
Dew point28°
Tue, 1354° / 37°0.21Rain
54 °Rain

Lyman, Tuesday, 13 October

Rain. High 54°, low 37°.

Pressure29.88 inHg
Wind10.8 mph NW
Humidity62%
Visibility—
Dew point37°
Wed, 1447° / 39°0.33Rain
47 °Rain

Lyman, Wednesday, 14 October

Rain. High 47°, low 39°.

Pressure29.91 inHg
Wind27.2 mph W
Humidity80%
Visibility—
Dew point37°
Thu, 1543° / 33°0.37Snow
43 °Snow

Lyman, Thursday, 15 October

Snow. High 43°, low 33°.

Pressure30.03 inHg
Wind17.3 mph W
Humidity81%
Visibility—
Dew point34°
Fri, 1638° / 26°0.05Light snow
38 °Light snow

Lyman, Friday, 16 October

Light snow. High 38°, low 26°.

Pressure30.53 inHg
Wind19.8 mph E
Humidity62%
Visibility—
Dew point21°
Sat, 1747° / 27°0Clear
47 °Clear

Lyman, Saturday, 17 October

Clear. High 47°, low 27°.

Pressure30.39 inHg
Wind7.2 mph SW
Humidity32%
Visibility—
Dew point11°
Sun, 1849° / 33°0Mostly clear
49 °Mostly clear

Lyman, Sunday, 18 October

Mostly clear. High 49°, low 33°.

Pressure30.24 inHg
Wind11.9 mph E
Humidity32%
Visibility—
Dew point17°
Mon, 1955° / 33°0Clear
55 °Clear

Lyman, Monday, 19 October

Clear. High 55°, low 33°.

Pressure30.21 inHg
Wind10.1 mph W
Humidity44%
Visibility—
Dew point24°
Tue, 2060° / 37°0Clear
60 °Clear

Lyman, Tuesday, 20 October

Clear. High 60°, low 37°.

Pressure30.09 inHg
Wind9.8 mph NW
Humidity21%
Visibility—
Dew point13°
Wed, 2160° / 40°0Partly cloudy
60 °Partly cloudy

Lyman, Wednesday, 21 October

Partly cloudy. High 60°, low 40°.

Pressure30.09 inHg
Wind10.7 mph NW
Humidity21%
Visibility—
Dew point15°
Thu, 2257° / 40°0Clear
57 °Clear

Lyman, Thursday, 22 October

Clear. High 57°, low 40°.

Pressure30.27 inHg
Wind6.7 mph SW
Humidity27%
Visibility—
Dew point18°
Fri, 2364° / 41°0Clear
64 °Clear

Lyman, Friday, 23 October

Clear. High 64°, low 41°.

Pressure30.15 inHg
Wind20.5 mph W
Humidity22%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2451° / 30°0.05Climate normal
51 °Climate normal

Lyman, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high51°
Average low30°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2014)
Record low16° (1984)
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)

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.