Monthly outlook for Rosario, WA: average high 50.4°, average low 45.4°. That is 0.5° below the climate normal for October. Precipitation is expected on 11 days (about 4.0 inches), against a normal of 9 days and 3.9 inches. The warmest day looks like 26 October (57.3°), the coolest 1 November (41.6°).
50.4°/45.4°
Average high / low
−0.5°
Below normal
11 / 9
Wet days / normal
4.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
50.1°
51.7°
-0.9°
4 November – 13 November
50.9°
50.1°
+0.4°
14 November – 23 November
at normal
47.5°
—
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).
Mon, 2657° / 45°0
57 °
Rosario, Monday, 26 October
Partly cloudy. High 57°, low 45°.
Pressure30.03 inHg
Wind3.6 mph N
Humidity79%
Visibility6.2 mi
Dew point47°
Tue, 2751° / 47°0.12
51 °
Rosario, Tuesday, 27 October
Rain. High 51°, low 47°.
Pressure30.00 inHg
Wind5.5 mph NW
Humidity73%
Visibility6.2 mi
Dew point42°
Wed, 2848° / 45°0.74
48 °
Rosario, Wednesday, 28 October
Rain. High 48°, low 45°.
Pressure29.97 inHg
Wind9.8 mph S
Humidity82%
Visibility4.4 mi
Dew point42°
Thu, 2950° / 45°0.15
50 °
Rosario, Thursday, 29 October
Light rain. High 50°, low 45°.
Pressure30.03 inHg
Wind14.9 mph SE
Humidity71%
Visibility—
Dew point38°
Fri, 3048° / 43°0.03
48 °
Rosario, Friday, 30 October
Light rain. High 48°, low 43°.
Pressure29.97 inHg
Wind8.3 mph N
Humidity83%
Visibility—
Dew point40°
Sat, 3147° / 43°0
47 °
Rosario, Saturday, 31 October
Clear. High 47°, low 43°.
Pressure30.03 inHg
Wind8 mph NW
Humidity65%
Visibility—
Dew point33°
Sun, 0146° / 42°0
46 °
Rosario, Sunday, 1 November
Clear. High 46°, low 42°.
Pressure29.85 inHg
Wind10.4 mph NW
Humidity72%
Visibility—
Dew point35°
Mon, 0250° / 45°0
50 °
Rosario, Monday, 2 November
Clear. High 50°, low 45°.
Pressure30.09 inHg
Wind15.5 mph SE
Humidity78%
Visibility—
Dew point38°
Tue, 0349° / 46°0.44
49 °
Rosario, Tuesday, 3 November
Rain. High 49°, low 46°.
Pressure30.12 inHg
Wind16.9 mph SE
Humidity92%
Visibility—
Dew point46°
Wed, 0450° / 47°0.14
50 °
Rosario, Wednesday, 4 November
Light rain. High 50°, low 47°.
Pressure29.83 inHg
Wind13 mph E
Humidity82%
Visibility—
Dew point44°
Thu, 0550° / 47°0.54
50 °
Rosario, Thursday, 5 November
Rain. High 50°, low 47°.
Pressure29.56 inHg
Wind15.7 mph SE
Humidity94%
Visibility—
Dew point46°
Fri, 0651° / 47°0.23
51 °
Rosario, Friday, 6 November
Light rain. High 51°, low 47°.
Pressure29.35 inHg
Wind9.4 mph E
Humidity89%
Visibility—
Dew point45°
Sat, 0751° / 48°0.11
51 °
Rosario, Saturday, 7 November
Light rain. High 51°, low 48°.
Pressure29.74 inHg
Wind11.5 mph SE
Humidity89%
Visibility—
Dew point47°
Sun, 0848° / 46°0.31
48 °
Rosario, Sunday, 8 November
Rain. High 48°, low 46°.
Pressure29.80 inHg
Wind8.5 mph NE
Humidity86%
Visibility—
Dew point42°
Mon, 0957° / 46°0.85
57 °
Rosario, Monday, 9 November
Rain. High 57°, low 46°.
Pressure29.62 inHg
Wind27.7 mph SE
Humidity73%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1050° / 44°0.2
50 °
Rosario, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.2 in
Chance of precipitation52%
Record high61° (2025)
Record low33° (1986)
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)
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.