As of 23:17 PDT

Weather in Chester, WA

46°

Chester, Sunday, 18 October, 23:17

Overcast. Feels like 46°. High 63°, low 34°.

Pressure29.97 inHg

Wind2.6 mph E

Humidity73%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Chester, WA: average high 53.3°, average low 38.1°. That is 0.3° below the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 20 October (68.6°), the coolest 18 October (33.6°).

53.3°/38.1°

Average high / low

−0.3°

Below normal

6 / 5

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
18 October – 27 October	57.9°	56°	+1.1°
28 October – 6 November	45.6°	49.4°	-2.1°
7 November – 16 November	at normal	45.3°	—

October records over 66 years

85.8°1 October 1992All-time high

1.9°25 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Spokane Valley (3 mi).

Mon, 1958° / 37°

58 °

Chester, Monday, 19 October

Overcast. High 58°, low 37°.

Pressure29.94 inHg

Wind1.2 mph NW

Humidity53%

Visibility6.2 mi

Dew point39°

Tue, 2069° / 35°

69 °

Chester, Tuesday, 20 October

Overcast. High 69°, low 35°.

Pressure30.06 inHg

Wind1.1 mph NW

Humidity50%

Visibility6.2 mi

Dew point42°

Wed, 2168° / 40°

68 °

Chester, Wednesday, 21 October

Overcast. High 68°, low 40°.

Pressure29.97 inHg

Wind1.1 mph S

Humidity48%

Visibility6.2 mi

Dew point43°

Thu, 2257° / 42°

0.33

57 °

Chester, Thursday, 22 October

Rain. High 57°, low 42°.

Pressure29.85 inHg

Wind1.1 mph E

Humidity80%

Visibility6.2 mi

Dew point48°

Fri, 2354° / 41°

0.17

54 °

Chester, Friday, 23 October

Light rain. High 54°, low 41°.

Pressure29.91 inHg

Wind11.1 mph SW

Humidity95%

Visibility—

Dew point46°

Sat, 2452° / 35°

52 °

Chester, Saturday, 24 October

Overcast. High 52°, low 35°.

Pressure30.18 inHg

Wind8.1 mph S

Humidity54%

Visibility—

Dew point30°

Sun, 2554° / 42°

54 °

Chester, Sunday, 25 October

Overcast. High 54°, low 42°.

Pressure30.18 inHg

Wind4.1 mph W

Humidity37%

Visibility—

Dew point24°

Mon, 2654° / 39°

54 °

Chester, Monday, 26 October

Overcast. High 54°, low 39°.

Pressure30.09 inHg

Wind3.7 mph E

Humidity48%

Visibility—

Dew point29°

Tue, 2751° / 40°

0.03

51 °

Chester, Tuesday, 27 October

Light rain. High 51°, low 40°.

Pressure29.80 inHg

Wind6.9 mph N

Humidity50%

Visibility—

Dew point30°

Wed, 2843° / 38°

0.24

43 °

Chester, Wednesday, 28 October

Light rain. High 43°, low 38°.

Pressure29.83 inHg

Wind11.1 mph S

Humidity95%

Visibility—

Dew point39°

Thu, 2945° / 37°

0.08

45 °

Chester, Thursday, 29 October

Snow. High 45°, low 37°.

Pressure29.71 inHg

Wind6.1 mph SW

Humidity78%

Visibility—

Dew point35°

Fri, 3042° / 35°

42 °

Chester, Friday, 30 October

Overcast. High 42°, low 35°.

Pressure30.12 inHg

Wind6.1 mph SW

Humidity71%

Visibility—

Dew point30°

Sat, 3145° / 36°

0.01

45 °

Chester, Saturday, 31 October

Light rain. High 45°, low 36°.

Pressure30.15 inHg

Wind10.9 mph S

Humidity64%

Visibility—

Dew point32°

Sun, 0149° / 40°

0.04

49 °

Chester, Sunday, 1 November

Light rain. High 49°, low 40°.

Pressure30.09 inHg

Wind13.6 mph SW

Humidity77%

Visibility—

Dew point38°

Mon, 0248° / 39°

0.39

48 °

Chester, Monday, 2 November

Rain. High 48°, low 39°.

Pressure29.62 inHg

Wind16 mph SW

Humidity63%

Visibility—

Dew point34°

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

Tue, 0349° / 35°

0.06

49 °

Chester, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.06 in

Chance of precipitation30%

Record high63° (1975)

Record low22° (2002)

Wed, 0449° / 35°

0.14

49 °

Chester, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.14 in

Chance of precipitation45%

Record high67° (1975)

Record low22° (2017)

Thu, 0548° / 34°

0.08

48 °

Chester, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.08 in

Chance of precipitation40%

Record high65° (1975)

Record low19° (2003)

Fri, 0647° / 34°

0.1

47 °

Chester, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.1 in

Chance of precipitation52%

Record high62° (2012)

Record low16° (1994)

Sat, 0747° / 33°

0.13

47 °

Chester, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.13 in

Chance of precipitation45%

Record high62° (1999)

Record low14° (2017)

Sun, 0846° / 33°

0.07

46 °

Chester, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.07 in

Chance of precipitation30%

Record high63° (2016)

Record low17° (2022)

Mon, 0946° / 32°

0.09

46 °

Chester, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.09 in

Chance of precipitation43%

Record high60° (2016)

Record low12° (2022)

Tue, 1045° / 32°

0.09

45 °

Chester, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.09 in

Chance of precipitation45%

Record high59° (2016)

Record low14° (2022)

Wed, 1146° / 31°

0.09

46 °

Chester, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.09 in

Chance of precipitation35%

Record high61° (1990)

Record low10° (2000)

Thu, 1245° / 32°

0.11

45 °

Chester, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.11 in

Chance of precipitation47%

Record high66° (1999)

Record low9° (1985)

Fri, 1345° / 32°

0.11

45 °

Chester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.11 in

Chance of precipitation43%

Record high61° (1999)

Record low8° (1985)

Sat, 1445° / 32°

0.07

45 °

Chester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.07 in

Chance of precipitation35%

Record high62° (1999)

Record low15° (2000)

Sun, 1545° / 31°

0.09

45 °

Chester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.09 in

Chance of precipitation38%

Record high61° (2001)

Record low13° (2000)

Mon, 1644° / 32°

0.13

44 °

Chester, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.13 in

Chance of precipitation45%

Record high57° (1999)

Record low19° (1964)

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 Chester, 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 Chester, 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.