Monthly outlook for Alder, WA: average high 71.8°, average low 52.9°. That is 1.4° below the climate normal for August. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 15 August (81.2°), the coolest 9 August (46.4°).
71.8°/52.9°
Average high / low
−1.4°
Below normal
5 / 3
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
75.7°
75.2°
+0.3°
19 August – 28 August
65.2°
72.8°
-4.2°
29 August – 7 September
at normal
71.1°
—
August records over 66 years
96.3°17 August 1977All-time high
38.1°29 August 1980All-time low
Climate normals and records are computed from the nearest reference point — Ashford (12 mi).
Mon, 1076° / 49°0
76 °
Alder, Monday, 10 August
Mostly clear. High 76°, low 49°.
Pressure30.06 inHg
Wind5.4 mph NW
Humidity45%
Visibility6.2 mi
Dew point49°
Tue, 1178° / 50°0
78 °
Alder, Tuesday, 11 August
Clear. High 78°, low 50°.
Pressure30.09 inHg
Wind5.7 mph NW
Humidity45%
Visibility6.2 mi
Dew point50°
Wed, 1277° / 52°0
77 °
Alder, Wednesday, 12 August
Clear. High 77°, low 52°.
Pressure29.97 inHg
Wind5.6 mph NW
Humidity49%
Visibility6.2 mi
Dew point52°
Thu, 1381° / 51°0
81 °
Alder, Thursday, 13 August
Clear. High 81°, low 51°.
Pressure29.85 inHg
Wind6.8 mph N
Humidity38%
Visibility—
Dew point49°
Fri, 1480° / 54°0
80 °
Alder, Friday, 14 August
Overcast. High 80°, low 54°.
Pressure29.94 inHg
Wind6.3 mph NW
Humidity39%
Visibility—
Dew point50°
Sat, 1581° / 55°0
81 °
Alder, Saturday, 15 August
Mostly clear. High 81°, low 55°.
Pressure29.94 inHg
Wind6.6 mph NW
Humidity34%
Visibility—
Dew point48°
Sun, 1679° / 54°0
79 °
Alder, Sunday, 16 August
Overcast. High 79°, low 54°.
Pressure29.94 inHg
Wind7.5 mph W
Humidity34%
Visibility—
Dew point46°
Mon, 1759° / 55°0.26
59 °
Alder, Monday, 17 August
Light rain. High 59°, low 55°.
Pressure30.03 inHg
Wind4.1 mph S
Humidity97%
Visibility—
Dew point56°
Tue, 1871° / 51°0
71 °
Alder, Tuesday, 18 August
Overcast. High 71°, low 51°.
Pressure30.00 inHg
Wind3.6 mph W
Humidity49%
Visibility—
Dew point47°
Wed, 1970° / 55°0
70 °
Alder, Wednesday, 19 August
Overcast. High 70°, low 55°.
Pressure30.00 inHg
Wind3.3 mph SE
Humidity63%
Visibility—
Dew point54°
Thu, 2073° / 58°0.39
73 °
Alder, Thursday, 20 August
Rain. High 73°, low 58°.
Pressure29.91 inHg
Wind4.1 mph W
Humidity67%
Visibility—
Dew point60°
Fri, 2166° / 55°0.21
66 °
Alder, Friday, 21 August
Light rain. High 66°, low 55°.
Pressure29.97 inHg
Wind3.1 mph W
Humidity86%
Visibility—
Dew point58°
Sat, 2261° / 55°0.48
61 °
Alder, Saturday, 22 August
Light rain. High 61°, low 55°.
Pressure30.06 inHg
Wind3.9 mph W
Humidity92%
Visibility—
Dew point58°
Sun, 2366° / 53°0
66 °
Alder, Sunday, 23 August
Light rain. High 66°, low 53°.
Pressure30.09 inHg
Wind4 mph NW
Humidity64%
Visibility—
Dew point50°
Mon, 2456° / 53°0.6
56 °
Alder, Monday, 24 August
Rain. High 56°, low 53°.
Pressure29.88 inHg
Wind5 mph SE
Humidity99%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2573° / 52°0.1
73 °
Alder, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.1 in
Chance of precipitation20%
Record high92° (1996)
Record low42° (1973)
Wed, 2674° / 52°0.06
74 °
Alder, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high74°
Average low52°
Average precipitation0.06 in
Chance of precipitation27%
Record high91° (1986)
Record low43° (1993)
Thu, 2773° / 54°0.11
73 °
Alder, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high73°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high93° (1986)
Record low45° (1995)
Fri, 2873° / 53°0.07
73 °
Alder, Friday, 28 August
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1967)
Record low41° (1960)
Sat, 2973° / 53°0.12
73 °
Alder, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0.12 in
Chance of precipitation30%
Record high90° (1967)
Record low38° (1980)
Sun, 3071° / 53°0.13
71 °
Alder, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.13 in
Chance of precipitation40%
Record high88° (1967)
Record low41° (1965)
Mon, 3171° / 52°0.08
71 °
Alder, Monday, 31 August
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.08 in
Chance of precipitation37%
Record high94° (1987)
Record low40° (1964)
Tue, 0171° / 52°0.15
71 °
Alder, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.15 in
Chance of precipitation32%
Record high90° (1988)
Record low38° (1973)
Wed, 0272° / 52°0.12
72 °
Alder, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high72°
Average low52°
Average precipitation0.12 in
Chance of precipitation27%
Record high98° (1988)
Record low41° (2000)
Thu, 0372° / 51°0.1
72 °
Alder, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high72°
Average low51°
Average precipitation0.1 in
Chance of precipitation28%
Record high98° (1988)
Record low40° (2000)
Fri, 0472° / 52°0.06
72 °
Alder, Friday, 4 September
Climate normal for this date — 60-year average.
Average high72°
Average low52°
Average precipitation0.06 in
Chance of precipitation28%
Record high92° (1988)
Record low40° (2000)
Sat, 0571° / 52°0.11
71 °
Alder, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (2017)
Record low41° (2000)
Sun, 0671° / 51°0.16
71 °
Alder, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.16 in
Chance of precipitation35%
Record high89° (2024)
Record low42° (1965)
Mon, 0770° / 52°0.1
70 °
Alder, Monday, 7 September
Climate normal for this date — 60-year average.
Average high70°
Average low52°
Average precipitation0.1 in
Chance of precipitation33%
Record high90° (1981)
Record low38° (1992)
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 Alder, 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 Alder, 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.