Monthly outlook for Rosario, WA: average high 49.8°, average low 46.1°. That is 0.7° below the climate normal for October. Precipitation is expected on 10 days (about 2.6 inches), against a normal of 9 days and 3.9 inches. The warmest day looks like 10 November (52.9°), the coolest 31 October (42°).
49.8°/46.1°
Average high / low
−0.7°
Below normal
10 / 9
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
48.5°
51.6°
-1.7°
5 November – 14 November
51.8°
49.9°
+1.1°
15 November – 24 November
at normal
47.3°
—
October records over 66 years
74.8°8 October 2023All-time high
25.3°28 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Indian Village (11 mi).
Tue, 2750° / 45°0.11
50 °
Rosario, Tuesday, 27 October
Rain. High 50°, low 45°.
Pressure29.97 inHg
Wind4.3 mph NW
Humidity82%
Visibility5.5 mi
Dew point45°
Wed, 2849° / 44°0.8
49 °
Rosario, Wednesday, 28 October
Heavy rain. High 49°, low 44°.
Pressure29.94 inHg
Wind3.9 mph SW
Humidity91%
Visibility0.3 mi
Dew point43°
Thu, 2947° / 45°0.17
47 °
Rosario, Thursday, 29 October
Light rain. High 47°, low 45°.
Pressure30.00 inHg
Wind11.6 mph E
Humidity77%
Visibility6.2 mi
Dew point40°
Fri, 3048° / 43°0.25
48 °
Rosario, Friday, 30 October
Light rain. High 48°, low 43°.
Pressure29.97 inHg
Wind11.8 mph SE
Humidity79%
Visibility—
Dew point39°
Sat, 3146° / 42°0.1
46 °
Rosario, Saturday, 31 October
Light rain. High 46°, low 42°.
Pressure30.03 inHg
Wind8.1 mph SE
Humidity90%
Visibility—
Dew point41°
Sun, 0147° / 44°0.04
47 °
Rosario, Sunday, 1 November
Light rain. High 47°, low 44°.
Pressure30.12 inHg
Wind7.8 mph SW
Humidity77%
Visibility—
Dew point38°
Mon, 0247° / 44°0
47 °
Rosario, Monday, 2 November
Overcast. High 47°, low 44°.
Pressure30.21 inHg
Wind11 mph N
Humidity73%
Visibility—
Dew point36°
Tue, 0348° / 44°0
48 °
Rosario, Tuesday, 3 November
Overcast. High 48°, low 44°.
Pressure29.88 inHg
Wind7.1 mph N
Humidity70%
Visibility—
Dew point36°
Wed, 0451° / 45°0.11
51 °
Rosario, Wednesday, 4 November
Light rain. High 51°, low 45°.
Pressure29.68 inHg
Wind13.2 mph E
Humidity71%
Visibility—
Dew point38°
Thu, 0550° / 47°0.28
50 °
Rosario, Thursday, 5 November
Light rain. High 50°, low 47°.
Pressure29.41 inHg
Wind19.4 mph SE
Humidity91%
Visibility—
Dew point45°
Fri, 0652° / 49°0.31
52 °
Rosario, Friday, 6 November
Light rain. High 52°, low 49°.
Pressure29.35 inHg
Wind21 mph SE
Humidity89%
Visibility—
Dew point48°
Sat, 0752° / 50°0.37
52 °
Rosario, Saturday, 7 November
Rain. High 52°, low 50°.
Pressure29.53 inHg
Wind19.2 mph SE
Humidity89%
Visibility—
Dew point47°
Sun, 0852° / 50°0.08
52 °
Rosario, Sunday, 8 November
Light rain. High 52°, low 50°.
Pressure29.97 inHg
Wind14.1 mph SE
Humidity89%
Visibility—
Dew point47°
Mon, 0952° / 51°0.02
52 °
Rosario, Monday, 9 November
Light rain. High 52°, low 51°.
Pressure30.24 inHg
Wind18.5 mph SE
Humidity88%
Visibility—
Dew point48°
Tue, 1053° / 50°0
53 °
Rosario, Tuesday, 10 November
Overcast. High 53°, low 50°.
Pressure30.24 inHg
Wind6.5 mph SE
Humidity85%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1150° / 44°0.25
50 °
Rosario, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.25 in
Chance of precipitation57%
Record high56° (1990)
Record low29° (1985)
Thu, 1249° / 44°0.25
49 °
Rosario, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.25 in
Chance of precipitation68%
Record high57° (2016)
Record low32° (2022)
Fri, 1349° / 44°0.28
49 °
Rosario, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.28 in
Chance of precipitation67%
Record high59° (1967)
Record low33° (2022)
Sat, 1449° / 44°0.25
49 °
Rosario, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.25 in
Chance of precipitation55%
Record high57° (1995)
Record low30° (2023)
Sun, 1549° / 43°0.28
49 °
Rosario, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.28 in
Chance of precipitation70%
Record high59° (2001)
Record low29° (2023)
Mon, 1648° / 43°0.28
48 °
Rosario, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low43°
Average precipitation0.28 in
Chance of precipitation67%
Record high56° (1965)
Record low31° (2022)
Tue, 1748° / 42°0.28
48 °
Rosario, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low42°
Average precipitation0.28 in
Chance of precipitation70%
Record high58° (1995)
Record low30° (2023)
Wed, 1847° / 42°0.2
47 °
Rosario, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low42°
Average precipitation0.2 in
Chance of precipitation62%
Record high56° (1995)
Record low29° (2022)
Thu, 1947° / 42°0.3
47 °
Rosario, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low42°
Average precipitation0.3 in
Chance of precipitation67%
Record high56° (1968)
Record low28° (2022)
Fri, 2047° / 42°0.28
47 °
Rosario, Friday, 20 November
Climate normal for this date — 60-year average.
Average high47°
Average low42°
Average precipitation0.28 in
Chance of precipitation62%
Record high56° (1962)
Record low28° (1985)
Sat, 2146° / 40°0.22
46 °
Rosario, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.22 in
Chance of precipitation50%
Record high55° (1968)
Record low23° (1985)
Sun, 2246° / 40°0.22
46 °
Rosario, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.22 in
Chance of precipitation60%
Record high63° (2017)
Record low17° (1985)
Mon, 2346° / 41°0.36
46 °
Rosario, Monday, 23 November
Climate normal for this date — 60-year average.
Average high46°
Average low41°
Average precipitation0.36 in
Chance of precipitation72%
Record high59° (2017)
Record low21° (1985)
Tue, 2447° / 41°0.3
47 °
Rosario, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low41°
Average precipitation0.3 in
Chance of precipitation68%
Record high53° (1974)
Record low26° (2010)
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 Rosario, 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 Rosario, 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.