As of 03:23 PDT

Weather in Chester, WA

43°

Chester, Saturday, 17 October, 03:23

Overcast. Feels like 43°. High 67°, low 41°.

Pressure30.03 inHg

Wind0 mph N

Humidity82%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Chester, WA: average high 55.7°, average low 38.2°. That is 0.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 17 October (67.5°), the coolest 18 October (29.2°).

55.7°/38.2°

Average high / low

+0.7°

Above normal

4 / 5

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
17 October – 26 October	60.2°	56.8°	+1.9°
27 October – 5 November	48.3°	49.9°	-0.9°
6 November – 15 November	at normal	45.7°	—

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).

Sun, 1864° / 29°

64 °

Chester, Sunday, 18 October

Clear. High 64°, low 29°.

Pressure30.12 inHg

Wind2.5 mph N

Humidity41%

Visibility6.2 mi

Dew point33°

Mon, 1962° / 39°

62 °

Chester, Monday, 19 October

Overcast. High 62°, low 39°.

Pressure29.88 inHg

Wind1.5 mph NW

Humidity44%

Visibility6.2 mi

Dew point35°

Tue, 2066° / 41°

66 °

Chester, Tuesday, 20 October

Mostly clear. High 66°, low 41°.

Pressure30.03 inHg

Wind3 mph NW

Humidity48%

Visibility6.2 mi

Dew point39°

Wed, 2166° / 41°

66 °

Chester, Wednesday, 21 October

Partly cloudy. High 66°, low 41°.

Pressure30.03 inHg

Wind2.7 mph S

Humidity58%

Visibility—

Dew point40°

Thu, 2264° / 41°

64 °

Chester, Thursday, 22 October

Overcast. High 64°, low 41°.

Pressure29.91 inHg

Wind5.7 mph S

Humidity61%

Visibility—

Dew point41°

Fri, 2353° / 43°

53 °

Chester, Friday, 23 October

Overcast. High 53°, low 43°.

Pressure30.00 inHg

Wind9.3 mph S

Humidity56%

Visibility—

Dew point32°

Sat, 2456° / 43°

56 °

Chester, Saturday, 24 October

Overcast. High 56°, low 43°.

Pressure30.33 inHg

Wind4.4 mph NE

Humidity57%

Visibility—

Dew point35°

Sun, 2549° / 41°

0.1

49 °

Chester, Sunday, 25 October

Light rain. High 49°, low 41°.

Pressure30.12 inHg

Wind7.5 mph S

Humidity56%

Visibility—

Dew point33°

Mon, 2654° / 37°

0.07

54 °

Chester, Monday, 26 October

Light rain. High 54°, low 37°.

Pressure30.06 inHg

Wind10 mph SW

Humidity56%

Visibility—

Dew point32°

Tue, 2747° / 39°

0.06

47 °

Chester, Tuesday, 27 October

Light rain. High 47°, low 39°.

Pressure29.88 inHg

Wind9.1 mph SW

Humidity77%

Visibility—

Dew point37°

Wed, 2850° / 36°

0.31

50 °

Chester, Wednesday, 28 October

Rain. High 50°, low 36°.

Pressure29.88 inHg

Wind11.2 mph SW

Humidity64%

Visibility—

Dew point33°

Thu, 2945° / 37°

0.01

45 °

Chester, Thursday, 29 October

Light rain. High 45°, low 37°.

Pressure30.00 inHg

Wind8.1 mph SW

Humidity80%

Visibility—

Dew point36°

Fri, 3044° / 34°

0.01

44 °

Chester, Friday, 30 October

Light rain. High 44°, low 34°.

Pressure29.94 inHg

Wind11.3 mph SW

Humidity72%

Visibility—

Dew point32°

Sat, 3148° / 33°

48 °

Chester, Saturday, 31 October

Mostly clear. High 48°, low 33°.

Pressure30.24 inHg

Wind4.9 mph E

Humidity68%

Visibility—

Dew point31°

Sun, 0156° / 35°

56 °

Chester, Sunday, 1 November

Partly cloudy. High 56°, low 35°.

Pressure30.12 inHg

Wind10.1 mph S

Humidity49%

Visibility—

Dew point28°

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

Mon, 0249° / 35°

0.1

49 °

Chester, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.1 in

Chance of precipitation38%

Record high64° (1981)

Record low21° (2002)

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)

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.