Monthly outlook for Rosalia, WA: average high 52.8°, average low 38.2°. That is 0.5° below the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 20 October (68.1°), the coolest 30 October (32°).
52.8°/38.2°
Average high / low
−0.5°
Below normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
57.6°
55.8°
+1°
28 October – 6 November
44.9°
49.7°
-2.7°
7 November – 16 November
at normal
45.9°
—
October records over 66 years
85.5°2 October 1975All-time high
13.3°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Plaza (6 mi).
Mon, 1958° / 37°0
58 °
Rosalia, Monday, 19 October
Overcast. High 58°, low 37°.
Pressure29.94 inHg
Wind3.8 mph SW
Humidity49%
Visibility6.2 mi
Dew point37°
Tue, 2068° / 37°0
68 °
Rosalia, Tuesday, 20 October
Overcast. High 68°, low 37°.
Pressure30.03 inHg
Wind7 mph NE
Humidity42%
Visibility6.2 mi
Dew point39°
Wed, 2166° / 41°0
66 °
Rosalia, Wednesday, 21 October
Overcast. High 66°, low 41°.
Pressure29.97 inHg
Wind4.7 mph S
Humidity37%
Visibility6.2 mi
Dew point36°
Thu, 2259° / 46°0.44
59 °
Rosalia, Thursday, 22 October
Rain. High 59°, low 46°.
Pressure29.83 inHg
Wind3.2 mph SE
Humidity64%
Visibility6.2 mi
Dew point45°
Fri, 2353° / 41°0.13
53 °
Rosalia, Friday, 23 October
Light rain. High 53°, low 41°.
Pressure29.97 inHg
Wind16 mph W
Humidity92%
Visibility—
Dew point43°
Sat, 2453° / 35°0
53 °
Rosalia, Saturday, 24 October
Overcast. High 53°, low 35°.
Pressure30.15 inHg
Wind9.6 mph SW
Humidity52%
Visibility—
Dew point28°
Sun, 2553° / 44°0
53 °
Rosalia, Sunday, 25 October
Overcast. High 53°, low 44°.
Pressure30.18 inHg
Wind7.9 mph SW
Humidity35%
Visibility—
Dew point22°
Mon, 2654° / 40°0
54 °
Rosalia, Monday, 26 October
Overcast. High 54°, low 40°.
Pressure30.06 inHg
Wind5.8 mph E
Humidity48%
Visibility—
Dew point29°
Tue, 2751° / 42°0
51 °
Rosalia, Tuesday, 27 October
Overcast. High 51°, low 42°.
Pressure29.77 inHg
Wind10 mph N
Humidity48%
Visibility—
Dew point29°
Wed, 2842° / 38°0.17
42 °
Rosalia, Wednesday, 28 October
Light rain. High 42°, low 38°.
Pressure29.83 inHg
Wind16 mph SW
Humidity93%
Visibility—
Dew point38°
Thu, 2944° / 33°0.01
44 °
Rosalia, Thursday, 29 October
Light rain. High 44°, low 33°.
Pressure29.71 inHg
Wind13.3 mph W
Humidity76%
Visibility—
Dew point33°
Fri, 3041° / 32°0
41 °
Rosalia, Friday, 30 October
Overcast. High 41°, low 32°.
Pressure30.15 inHg
Wind10.3 mph SW
Humidity61%
Visibility—
Dew point25°
Sat, 3146° / 36°0.02
46 °
Rosalia, Saturday, 31 October
Light rain. High 46°, low 36°.
Pressure30.18 inHg
Wind14.7 mph SW
Humidity63%
Visibility—
Dew point30°
Sun, 0149° / 41°0.02
49 °
Rosalia, Sunday, 1 November
Light rain. High 49°, low 41°.
Pressure30.09 inHg
Wind20.4 mph SW
Humidity75%
Visibility—
Dew point38°
Mon, 0247° / 38°0.57
47 °
Rosalia, Monday, 2 November
Rain. High 47°, low 38°.
Pressure29.62 inHg
Wind22 mph SW
Humidity65%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0350° / 35°0.04
50 °
Rosalia, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation30%
Record high64° (1965)
Record low22° (1973)
Wed, 0449° / 36°0.12
49 °
Rosalia, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation45%
Record high66° (1975)
Record low22° (2003)
Thu, 0548° / 34°0.08
48 °
Rosalia, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.08 in
Chance of precipitation40%
Record high64° (1975)
Record low17° (1973)
Fri, 0648° / 34°0.1
48 °
Rosalia, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation48%
Record high64° (1999)
Record low17° (2003)
Sat, 0747° / 34°0.12
47 °
Rosalia, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation42%
Record high67° (1999)
Record low13° (2017)
Sun, 0847° / 33°0.06
47 °
Rosalia, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (2016)
Record low22° (2022)
Mon, 0946° / 33°0.07
46 °
Rosalia, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation38%
Record high60° (1989)
Record low19° (1986)
Tue, 1046° / 33°0.07
46 °
Rosalia, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation37%
Record high62° (2016)
Record low12° (2022)
Wed, 1146° / 33°0.07
46 °
Rosalia, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2016)
Record low2° (2000)
Thu, 1246° / 33°0.09
46 °
Rosalia, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation38%
Record high67° (1999)
Record low6° (2000)
Fri, 1345° / 33°0.09
45 °
Rosalia, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation43%
Record high63° (1999)
Record low6° (2000)
Sat, 1445° / 33°0.05
45 °
Rosalia, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation30%
Record high66° (1999)
Record low13° (1985)
Sun, 1546° / 32°0.07
46 °
Rosalia, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation38%
Record high60° (2021)
Record low9° (2000)
Mon, 1644° / 33°0.1
44 °
Rosalia, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.1 in
Chance of precipitation43%
Record high60° (1999)
Record low14° (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 Rosalia, 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 Rosalia, 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.