As of 11:08 PDT

Weather in Plain, WA

51°

Plain, Wednesday, 7 October, 11:08

Clear. Feels like 49°. High 69°, low 44°.

Pressure30.12 inHg

Wind1.4 mph SW

Humidity72%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Plain, WA: average high 58.6°, average low 38.6°. That is 0.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 8 October (75.4°), the coolest 12 October (33.1°).

58.6°/38.6°

Average high / low

+0.4°

Above normal

4 / 6

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	57.1°	59.3°	-1.2°
17 October – 26 October	61.2°	54.2°	+3.9°
27 October – 5 November	at normal	47.8°	—

October records over 66 years

81.9°2 October 2022All-time high

3.4°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Chumstick (5 mi).

Thu, 0875° / 52°

75 °

Plain, Thursday, 8 October

Overcast. High 75°, low 52°.

Pressure29.97 inHg

Wind4.1 mph NW

Humidity36%

Visibility6.2 mi

Dew point43°

Fri, 0951° / 42°

0.14

51 °

Plain, Friday, 9 October

Rain. High 51°, low 42°.

Pressure29.65 inHg

Wind8.1 mph NW

Humidity90%

Visibility—

Dew point46°

Sat, 1050° / 39°

0.27

50 °

Plain, Saturday, 10 October

Rain. High 50°, low 39°.

Pressure29.80 inHg

Wind2.6 mph SW

Humidity57%

Visibility6.2 mi

Dew point34°

Sun, 1152° / 34°

0.02

52 °

Plain, Sunday, 11 October

Light rain. High 52°, low 34°.

Pressure30.12 inHg

Wind4.7 mph S

Humidity69%

Visibility—

Dew point33°

Mon, 1254° / 33°

54 °

Plain, Monday, 12 October

Clear. High 54°, low 33°.

Pressure30.12 inHg

Wind3.9 mph S

Humidity52%

Visibility—

Dew point29°

Tue, 1358° / 37°

0.05

58 °

Plain, Tuesday, 13 October

Light rain. High 58°, low 37°.

Pressure29.91 inHg

Wind6.4 mph NW

Humidity36%

Visibility—

Dew point25°

Wed, 1449° / 36°

0.09

49 °

Plain, Wednesday, 14 October

Light rain. High 49°, low 36°.

Pressure29.91 inHg

Wind10.7 mph NW

Humidity75%

Visibility—

Dew point37°

Thu, 1556° / 33°

56 °

Plain, Thursday, 15 October

Clear. High 56°, low 33°.

Pressure30.33 inHg

Wind5.7 mph SE

Humidity41%

Visibility—

Dew point26°

Fri, 1657° / 34°

57 °

Plain, Friday, 16 October

Clear. High 57°, low 34°.

Pressure30.36 inHg

Wind5.3 mph SE

Humidity44%

Visibility—

Dew point28°

Sat, 1758° / 35°

58 °

Plain, Saturday, 17 October

Clear. High 58°, low 35°.

Pressure30.09 inHg

Wind5.5 mph SE

Humidity39%

Visibility—

Dew point26°

Sun, 1860° / 36°

60 °

Plain, Sunday, 18 October

Clear. High 60°, low 36°.

Pressure30.06 inHg

Wind4.8 mph SE

Humidity36%

Visibility—

Dew point25°

Mon, 1965° / 39°

65 °

Plain, Monday, 19 October

Clear. High 65°, low 39°.

Pressure29.94 inHg

Wind6.4 mph NW

Humidity30%

Visibility—

Dew point26°

Tue, 2063° / 41°

63 °

Plain, Tuesday, 20 October

Clear. High 63°, low 41°.

Pressure30.21 inHg

Wind5.5 mph NW

Humidity30%

Visibility—

Dew point25°

Wed, 2162° / 41°

62 °

Plain, Wednesday, 21 October

Overcast. High 62°, low 41°.

Pressure30.18 inHg

Wind4.2 mph SE

Humidity32%

Visibility—

Dew point25°

Thu, 2259° / 42°

59 °

Plain, Thursday, 22 October

Overcast. High 59°, low 42°.

Pressure30.03 inHg

Wind4.1 mph SE

Humidity33%

Visibility—

Dew point25°

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

Fri, 2354° / 39°

0.13

54 °

Plain, Friday, 23 October

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.13 in

Chance of precipitation37%

Record high66° (2018)

Record low27° (1984)

Sat, 2452° / 38°

0.13

52 °

Plain, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.13 in

Chance of precipitation45%

Record high69° (1965)

Record low24° (2020)

Sun, 2551° / 37°

0.17

51 °

Plain, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.17 in

Chance of precipitation45%

Record high65° (1965)

Record low12° (2020)

Mon, 2651° / 37°

0.19

51 °

Plain, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.19 in

Chance of precipitation47%

Record high66° (2003)

Record low18° (1970)

Tue, 2750° / 37°

0.14

50 °

Plain, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.14 in

Chance of precipitation33%

Record high63° (1993)

Record low8° (1970)

Wed, 2849° / 36°

0.16

49 °

Plain, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.16 in

Chance of precipitation52%

Record high67° (1987)

Record low14° (1971)

Thu, 2949° / 35°

0.13

49 °

Plain, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.13 in

Chance of precipitation50%

Record high66° (1987)

Record low9° (1971)

Fri, 3048° / 35°

0.18

48 °

Plain, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.18 in

Chance of precipitation52%

Record high65° (1962)

Record low3° (1991)

Sat, 3148° / 35°

0.24

48 °

Plain, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.24 in

Chance of precipitation57%

Record high63° (1988)

Record low19° (1984)

Sun, 0147° / 35°

0.22

47 °

Plain, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.22 in

Chance of precipitation47%

Record high61° (1965)

Record low18° (1984)

Mon, 0247° / 34°

0.17

47 °

Plain, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.17 in

Chance of precipitation42%

Record high57° (2010)

Record low18° (1991)

Tue, 0347° / 34°

0.16

47 °

Plain, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.16 in

Chance of precipitation50%

Record high58° (2019)

Record low18° (1973)

Wed, 0447° / 35°

0.28

47 °

Plain, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.28 in

Chance of precipitation60%

Record high61° (2020)

Record low22° (1973)

Thu, 0546° / 35°

0.16

46 °

Plain, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high46°

Average low35°

Average precipitation0.16 in

Chance of precipitation50%

Record high59° (2019)

Record low6° (1971)

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 Plain, 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 Plain, 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.