As of 11:52 PDT

Weather in Lyman, WA

54°

Lyman, Friday, 9 October, 11:52

Overcast. Feels like 51°. High 59°, low 49°.

Pressure29.80 inHg

Wind5.4 mph W

Humidity33%

Visibility5.3 mi

Dew point27°

See detailed hourly forecast

Monthly outlook for Lyman, WA: average high 64.2°, average low 46.7°. That is 5.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 8 days and 4.1 inches. The warmest day looks like 24 October (76.6°), the coolest 11 October (36°).

64.2°/46.7°

Average high / low

+5.9°

Above normal

4 / 8

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	62.5°	54.6°	+4.4°
19 October – 28 October	67°	50.9°	+8.9°
29 October – 7 November	at normal	47.2°	—

October records over 66 years

81.9°16 October 2022All-time high

2.8°31 October 1984All-time low

Climate normals and records are computed from the nearest reference point — Acme (15 mi).

Sat, 1060° / 46°

0.13

60 °

Lyman, Saturday, 10 October

Light rain. High 60°, low 46°.

Pressure29.85 inHg

Wind2.7 mph W

Humidity82%

Visibility6.2 mi

Dew point44°

Sun, 1158° / 36°

58 °

Lyman, Sunday, 11 October

Clear. High 58°, low 36°.

Pressure30.00 inHg

Wind0.8 mph W

Humidity45%

Visibility6.2 mi

Dew point34°

Mon, 1258° / 36°

58 °

Lyman, Monday, 12 October

Clear. High 58°, low 36°.

Pressure30.09 inHg

Wind1.3 mph S

Humidity43%

Visibility6.2 mi

Dew point33°

Tue, 1359° / 37°

0.01

59 °

Lyman, Tuesday, 13 October

Light rain. High 59°, low 37°.

Pressure30.15 inHg

Wind3.9 mph E

Humidity61%

Visibility—

Dew point39°

Wed, 1458° / 49°

0.04

58 °

Lyman, Wednesday, 14 October

Light rain. High 58°, low 49°.

Pressure30.27 inHg

Wind3.9 mph E

Humidity83%

Visibility—

Dew point48°

Thu, 1571° / 49°

71 °

Lyman, Thursday, 15 October

Partly cloudy. High 71°, low 49°.

Pressure30.30 inHg

Wind5.7 mph E

Humidity69%

Visibility—

Dew point50°

Fri, 1673° / 52°

73 °

Lyman, Friday, 16 October

Overcast. High 73°, low 52°.

Pressure30.27 inHg

Wind6.3 mph E

Humidity39%

Visibility—

Dew point40°

Sat, 1764° / 51°

64 °

Lyman, Saturday, 17 October

Overcast. High 64°, low 51°.

Pressure30.21 inHg

Wind3.7 mph W

Humidity68%

Visibility—

Dew point49°

Sun, 1865° / 48°

65 °

Lyman, Sunday, 18 October

Partly cloudy. High 65°, low 48°.

Pressure30.03 inHg

Wind4.8 mph W

Humidity62%

Visibility—

Dew point47°

Mon, 1957° / 46°

57 °

Lyman, Monday, 19 October

Overcast. High 57°, low 46°.

Pressure30.15 inHg

Wind4.1 mph W

Humidity72%

Visibility—

Dew point44°

Tue, 2063° / 45°

63 °

Lyman, Tuesday, 20 October

Partly cloudy. High 63°, low 45°.

Pressure30.27 inHg

Wind5 mph E

Humidity58%

Visibility—

Dew point42°

Wed, 2164° / 50°

0.04

64 °

Lyman, Wednesday, 21 October

Light rain. High 64°, low 50°.

Pressure30.27 inHg

Wind5.4 mph E

Humidity81%

Visibility—

Dew point50°

Thu, 2268° / 48°

68 °

Lyman, Thursday, 22 October

Overcast. High 68°, low 48°.

Pressure30.18 inHg

Wind6.3 mph E

Humidity47%

Visibility—

Dew point39°

Fri, 2374° / 49°

74 °

Lyman, Friday, 23 October

Mostly clear. High 74°, low 49°.

Pressure29.97 inHg

Wind6.4 mph E

Humidity33%

Visibility—

Dew point34°

Sat, 2477° / 53°

77 °

Lyman, Saturday, 24 October

Mostly clear. High 77°, low 53°.

Pressure29.91 inHg

Wind5.7 mph E

Humidity33%

Visibility—

Dew point37°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 2550° / 39°

0.29

50 °

Lyman, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high50°

Average low39°

Average precipitation0.29 in

Chance of precipitation63%

Record high65° (1965)

Record low23° (2020)

Mon, 2649° / 38°

0.35

49 °

Lyman, Monday, 26 October

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.35 in

Chance of precipitation55%

Record high67° (1965)

Record low20° (1970)

Tue, 2749° / 38°

0.29

49 °

Lyman, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.29 in

Chance of precipitation52%

Record high65° (2017)

Record low22° (1970)

Wed, 2849° / 38°

0.38

49 °

Lyman, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.38 in

Chance of precipitation65%

Record high67° (2017)

Record low19° (1971)

Thu, 2948° / 36°

0.24

48 °

Lyman, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.24 in

Chance of precipitation55%

Record high67° (1962)

Record low18° (1972)

Fri, 3048° / 36°

0.33

48 °

Lyman, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.33 in

Chance of precipitation55%

Record high58° (1987)

Record low20° (1972)

Sat, 3147° / 37°

0.39

47 °

Lyman, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°

Average low37°

Average precipitation0.39 in

Chance of precipitation65%

Record high58° (1964)

Record low3° (1984)

Sun, 0148° / 36°

0.31

48 °

Lyman, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.31 in

Chance of precipitation50%

Record high63° (1969)

Record low24° (1984)

Mon, 0248° / 36°

0.31

48 °

Lyman, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.31 in

Chance of precipitation55%

Record high65° (1962)

Record low24° (1961)

Tue, 0347° / 37°

0.38

47 °

Lyman, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low37°

Average precipitation0.38 in

Chance of precipitation63%

Record high62° (2010)

Record low24° (1994)

Wed, 0447° / 37°

0.46

47 °

Lyman, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°

Average low37°

Average precipitation0.46 in

Chance of precipitation62%

Record high63° (1980)

Record low23° (2017)

Thu, 0547° / 35°

0.29

47 °

Lyman, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.29 in

Chance of precipitation67%

Record high61° (1980)

Record low19° (1971)

Fri, 0646° / 35°

0.44

46 °

Lyman, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°

Average low35°

Average precipitation0.44 in

Chance of precipitation65%

Record high55° (2019)

Record low22° (2017)

Sat, 0746° / 36°

0.4

46 °

Lyman, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°

Average low36°

Average precipitation0.4 in

Chance of precipitation77%

Record high58° (2019)

Record low20° (2017)

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, WA 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, WA 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.