As of 15:16 PDT

Weather in Riverside, WA

68°

Riverside, Friday, 9 October, 15:16

Overcast. Feels like 66°. High 68°, low 46°.

Pressure29.65 inHg

Wind3.2 mph SW

Humidity36%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Riverside, WA: average high 58.4°, average low 41.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 October (68.2°), the coolest 11 October (31.8°).

58.4°/41.2°

Average high / low

+2.5°

Above normal

2 / 3

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	58.7°	55.4°	+1.8°
19 October – 28 October	57.9°	49.7°	+4.6°
29 October – 7 November	at normal	43.3°	—

October records over 66 years

83.1°1 October 1992All-time high

2.8°30 October 1972All-time low

Climate normals and records are computed from the nearest reference point — Synarep (8 mi).

Sat, 1055° / 37°

0.13

55 °

Riverside, Saturday, 10 October

Rain. High 55°, low 37°.

Pressure29.83 inHg

Wind7 mph NE

Humidity61%

Visibility6.2 mi

Dew point37°

Sun, 1152° / 32°

52 °

Riverside, Sunday, 11 October

Clear. High 52°, low 32°.

Pressure30.03 inHg

Wind11.4 mph N

Humidity45%

Visibility6.2 mi

Dew point27°

Mon, 1252° / 34°

52 °

Riverside, Monday, 12 October

Clear. High 52°, low 34°.

Pressure30.06 inHg

Wind1.7 mph N

Humidity47%

Visibility6.2 mi

Dew point30°

Tue, 1353° / 37°

53 °

Riverside, Tuesday, 13 October

Mostly clear. High 53°, low 37°.

Pressure30.12 inHg

Wind3.6 mph S

Humidity54%

Visibility6.2 mi

Dew point34°

Wed, 1453° / 40°

53 °

Riverside, Wednesday, 14 October

Mostly clear. High 53°, low 40°.

Pressure30.18 inHg

Wind2.1 mph SW

Humidity53%

Visibility—

Dew point31°

Thu, 1563° / 43°

63 °

Riverside, Thursday, 15 October

Partly cloudy. High 63°, low 43°.

Pressure30.33 inHg

Wind4.7 mph N

Humidity48%

Visibility—

Dew point35°

Fri, 1664° / 45°

64 °

Riverside, Friday, 16 October

Overcast. High 64°, low 45°.

Pressure30.39 inHg

Wind6.8 mph S

Humidity43%

Visibility—

Dew point33°

Sat, 1762° / 45°

62 °

Riverside, Saturday, 17 October

Overcast. High 62°, low 45°.

Pressure30.24 inHg

Wind5.8 mph S

Humidity42%

Visibility—

Dew point33°

Sun, 1865° / 44°

65 °

Riverside, Sunday, 18 October

Partly cloudy. High 65°, low 44°.

Pressure30.18 inHg

Wind5.2 mph S

Humidity43%

Visibility—

Dew point33°

Mon, 1965° / 44°

65 °

Riverside, Monday, 19 October

Overcast. High 65°, low 44°.

Pressure30.00 inHg

Wind7.7 mph N

Humidity40%

Visibility—

Dew point32°

Tue, 2064° / 45°

64 °

Riverside, Tuesday, 20 October

Partly cloudy. High 64°, low 45°.

Pressure30.09 inHg

Wind9.7 mph N

Humidity53%

Visibility—

Dew point40°

Wed, 2162° / 41°

62 °

Riverside, Wednesday, 21 October

Clear. High 62°, low 41°.

Pressure30.15 inHg

Wind7.6 mph N

Humidity39%

Visibility—

Dew point28°

Thu, 2247° / 43°

0.39

47 °

Riverside, Thursday, 22 October

Rain. High 47°, low 43°.

Pressure29.88 inHg

Wind7.4 mph N

Humidity70%

Visibility—

Dew point37°

Fri, 2354° / 44°

0.03

54 °

Riverside, Friday, 23 October

Light rain. High 54°, low 44°.

Pressure30.12 inHg

Wind7 mph N

Humidity65%

Visibility—

Dew point38°

Sat, 2456° / 39°

56 °

Riverside, Saturday, 24 October

Partly cloudy. High 56°, low 39°.

Pressure30.15 inHg

Wind9.4 mph N

Humidity56%

Visibility—

Dew point32°

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

Sun, 2549° / 33°

0.08

49 °

Riverside, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high49°

Average low33°

Average precipitation0.08 in

Chance of precipitation35%

Record high62° (1965)

Record low16° (1970)

Mon, 2647° / 32°

0.07

47 °

Riverside, Monday, 26 October

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.07 in

Chance of precipitation33%

Record high64° (1965)

Record low14° (1970)

Tue, 2747° / 32°

0.06

47 °

Riverside, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.06 in

Chance of precipitation22%

Record high60° (1965)

Record low17° (1970)

Wed, 2846° / 32°

0.08

46 °

Riverside, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.08 in

Chance of precipitation33%

Record high57° (2017)

Record low16° (1991)

Thu, 2945° / 31°

0.06

45 °

Riverside, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.06 in

Chance of precipitation32%

Record high62° (1987)

Record low16° (2019)

Fri, 3044° / 31°

0.05

44 °

Riverside, Friday, 30 October

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.05 in

Chance of precipitation30%

Record high58° (1962)

Record low3° (1972)

Sat, 3145° / 31°

0.08

45 °

Riverside, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.08 in

Chance of precipitation33%

Record high55° (1967)

Record low6° (1984)

Sun, 0144° / 30°

0.08

44 °

Riverside, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.08 in

Chance of precipitation30%

Record high55° (1987)

Record low15° (1984)

Mon, 0244° / 30°

0.07

44 °

Riverside, Monday, 2 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.07 in

Chance of precipitation30%

Record high56° (2018)

Record low8° (1994)

Tue, 0343° / 30°

0.06

43 °

Riverside, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high43°

Average low30°

Average precipitation0.06 in

Chance of precipitation33%

Record high55° (1975)

Record low-2° (1994)

Wed, 0443° / 31°

0.09

43 °

Riverside, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.09 in

Chance of precipitation37%

Record high56° (1975)

Record low13° (1961)

Thu, 0542° / 29°

0.07

42 °

Riverside, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation40%

Record high55° (1987)

Record low1° (1994)

Fri, 0642° / 29°

0.1

42 °

Riverside, Friday, 6 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.1 in

Chance of precipitation45%

Record high54° (1987)

Record low10° (2017)

Sat, 0741° / 29°

0.1

41 °

Riverside, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.1 in

Chance of precipitation38%

Record high53° (1965)

Record low8° (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 Riverside, 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 Riverside, 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.