As of 07:14 PDT

Weather in Keystone, WA

43°

Keystone, Thursday, 8 October, 07:14

Clear. Feels like 41°. High 77°, low 43°.

Pressure30.06 inHg

Wind3.4 mph E

Humidity81%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Keystone, WA: average high 60.1°, average low 41.5°. That is 0.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 8 October (76.6°), the coolest 13 October (36.6°).

60.1°/41.5°

Average high / low

+0.3°

Above normal

0 / 3

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	60.2°	60.6°	-0.3°
18 October – 27 October	59.9°	56.3°	+2°
28 October – 6 November	at normal	50.1°	—

October records over 66 years

87.1°2 October 1975All-time high

16.7°31 October 1984All-time low

Climate normals and records are computed from the nearest reference point — Sprague (10 mi).

Fri, 0967° / 42°

67 °

Keystone, Friday, 9 October

Overcast. High 67°, low 42°.

Pressure29.65 inHg

Wind14.5 mph W

Humidity37%

Visibility6.2 mi

Dew point39°

Sat, 1057° / 38°

57 °

Keystone, Saturday, 10 October

Light rain. High 57°, low 38°.

Pressure29.77 inHg

Wind4.6 mph S

Humidity45%

Visibility6.2 mi

Dew point32°

Sun, 1151° / 39°

51 °

Keystone, Sunday, 11 October

Clear. High 51°, low 39°.

Pressure29.97 inHg

Wind19.8 mph NE

Humidity46%

Visibility6.2 mi

Dew point22°

Mon, 1258° / 40°

58 °

Keystone, Monday, 12 October

Clear. High 58°, low 40°.

Pressure29.97 inHg

Wind12.9 mph NE

Humidity43%

Visibility—

Dew point29°

Tue, 1361° / 37°

61 °

Keystone, Tuesday, 13 October

Clear. High 61°, low 37°.

Pressure30.00 inHg

Wind6.7 mph SW

Humidity42%

Visibility—

Dew point29°

Wed, 1454° / 42°

54 °

Keystone, Wednesday, 14 October

Light rain. High 54°, low 42°.

Pressure29.85 inHg

Wind20.2 mph W

Humidity50%

Visibility—

Dew point31°

Thu, 1557° / 39°

57 °

Keystone, Thursday, 15 October

Clear. High 57°, low 39°.

Pressure30.39 inHg

Wind9.7 mph NE

Humidity50%

Visibility—

Dew point33°

Fri, 1659° / 40°

59 °

Keystone, Friday, 16 October

Clear. High 59°, low 40°.

Pressure30.45 inHg

Wind8.7 mph E

Humidity35%

Visibility—

Dew point25°

Sat, 1760° / 43°

60 °

Keystone, Saturday, 17 October

Overcast. High 60°, low 43°.

Pressure30.21 inHg

Wind7.4 mph E

Humidity35%

Visibility—

Dew point26°

Sun, 1863° / 44°

63 °

Keystone, Sunday, 18 October

Overcast. High 63°, low 44°.

Pressure30.12 inHg

Wind7.6 mph SW

Humidity33%

Visibility—

Dew point26°

Mon, 1963° / 45°

63 °

Keystone, Monday, 19 October

Clear. High 63°, low 45°.

Pressure30.24 inHg

Wind11.5 mph SW

Humidity46%

Visibility—

Dew point36°

Tue, 2062° / 47°

62 °

Keystone, Tuesday, 20 October

Overcast. High 62°, low 47°.

Pressure30.30 inHg

Wind6.7 mph SE

Humidity46%

Visibility—

Dew point35°

Wed, 2162° / 43°

62 °

Keystone, Wednesday, 21 October

Overcast. High 62°, low 43°.

Pressure30.45 inHg

Wind7.3 mph NW

Humidity39%

Visibility—

Dew point30°

Thu, 2259° / 42°

59 °

Keystone, Thursday, 22 October

Overcast. High 59°, low 42°.

Pressure30.03 inHg

Wind20.9 mph NW

Humidity27%

Visibility—

Dew point19°

Fri, 2351° / 40°

0.01

51 °

Keystone, Friday, 23 October

Light rain. High 51°, low 40°.

Pressure30.03 inHg

Wind11.3 mph S

Humidity62%

Visibility—

Dew point33°

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

Sat, 2456° / 39°

0.04

56 °

Keystone, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high56°

Average low39°

Average precipitation0.04 in

Chance of precipitation18%

Record high69° (1977)

Record low24° (2020)

Sun, 2555° / 39°

0.07

55 °

Keystone, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.07 in

Chance of precipitation27%

Record high71° (1965)

Record low17° (2020)

Mon, 2653° / 39°

0.05

53 °

Keystone, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.05 in

Chance of precipitation28%

Record high69° (1965)

Record low21° (2020)

Tue, 2753° / 38°

0.06

53 °

Keystone, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.06 in

Chance of precipitation30%

Record high69° (1965)

Record low23° (2020)

Wed, 2852° / 38°

0.05

52 °

Keystone, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.05 in

Chance of precipitation30%

Record high68° (2003)

Record low21° (1991)

Thu, 2951° / 37°

0.06

51 °

Keystone, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.06 in

Chance of precipitation30%

Record high67° (1983)

Record low19° (2019)

Fri, 3051° / 37°

0.06

51 °

Keystone, Friday, 30 October

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.06 in

Chance of precipitation27%

Record high63° (2015)

Record low18° (2019)

Sat, 3150° / 37°

0.07

50 °

Keystone, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.07 in

Chance of precipitation28%

Record high66° (1988)

Record low17° (1984)

Sun, 0150° / 36°

0.08

50 °

Keystone, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.08 in

Chance of precipitation35%

Record high68° (1965)

Record low20° (2002)

Mon, 0250° / 36°

0.07

50 °

Keystone, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.07 in

Chance of precipitation32%

Record high64° (1981)

Record low21° (2002)

Tue, 0350° / 37°

0.04

50 °

Keystone, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.04 in

Chance of precipitation23%

Record high63° (1975)

Record low24° (2002)

Wed, 0450° / 37°

0.1

50 °

Keystone, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.1 in

Chance of precipitation42%

Record high65° (1975)

Record low23° (2003)

Thu, 0548° / 35°

0.07

48 °

Keystone, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.07 in

Chance of precipitation37%

Record high62° (1987)

Record low17° (2003)

Fri, 0648° / 35°

0.07

48 °

Keystone, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.07 in

Chance of precipitation35%

Record high61° (1999)

Record low17° (2003)

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 Keystone, 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 Keystone, 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.