Monthly outlook for Washington, OK: average high 105.7°, average low 77.4°. That is 7.9° above the climate normal for August. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 18 August (112.3°), the coolest 22 August (70.7°).
105.7°/77.4°
Average high / low
+7.9°
Above normal
5 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
105.8°
91.3°
+8.1°
18 August – 27 August
105.4°
91.3°
+7.8°
28 August – 6 September
at normal
88.4°
—
August records over 66 years
109.6°3 August 2011All-time high
57.9°25 August 1966All-time low
Climate normals and records are computed from the nearest reference point — Norman (15 mi).
Sun, 09102° / 71°0
102 °
Washington, Sunday, 9 August
Clear. High 102°, low 71°.
Pressure29.91 inHg
Wind13.2 mph S
Humidity27%
Visibility6.2 mi
Dew point59°
Mon, 10108° / 76°0
108 °
Washington, Monday, 10 August
Clear. High 108°, low 76°.
Pressure29.91 inHg
Wind16.7 mph SW
Humidity26%
Visibility6.2 mi
Dew point60°
Tue, 11108° / 80°0
108 °
Washington, Tuesday, 11 August
Clear. High 108°, low 80°.
Pressure29.88 inHg
Wind17.8 mph SW
Humidity26%
Visibility6.2 mi
Dew point61°
Wed, 12108° / 81°0
108 °
Washington, Wednesday, 12 August
Overcast. High 108°, low 81°.
Pressure29.83 inHg
Wind18.9 mph SW
Humidity26%
Visibility6.2 mi
Dew point60°
Thu, 13107° / 83°0.04
107 °
Washington, Thursday, 13 August
Light rain. High 107°, low 83°.
Pressure29.77 inHg
Wind19.6 mph SW
Humidity21%
Visibility—
Dew point53°
Fri, 1498° / 74°0.15
98 °
Washington, Friday, 14 August
Light rain. High 98°, low 74°.
Pressure29.97 inHg
Wind11.9 mph SW
Humidity45%
Visibility—
Dew point64°
Sat, 15104° / 71°0.03
104 °
Washington, Saturday, 15 August
Light rain. High 104°, low 71°.
Pressure30.03 inHg
Wind19.6 mph S
Humidity23%
Visibility—
Dew point54°
Sun, 16109° / 79°0
109 °
Washington, Sunday, 16 August
Overcast. High 109°, low 79°.
Pressure30.00 inHg
Wind16.4 mph S
Humidity19%
Visibility—
Dew point52°
Mon, 17111° / 81°0
111 °
Washington, Monday, 17 August
Clear. High 111°, low 81°.
Pressure29.94 inHg
Wind15.7 mph S
Humidity15%
Visibility—
Dew point48°
Tue, 18112° / 84°0
112 °
Washington, Tuesday, 18 August
Mostly clear. High 112°, low 84°.
Pressure29.88 inHg
Wind18 mph S
Humidity15%
Visibility—
Dew point49°
Wed, 19112° / 83°0
112 °
Washington, Wednesday, 19 August
Partly cloudy. High 112°, low 83°.
Pressure29.83 inHg
Wind17.6 mph S
Humidity16%
Visibility—
Dew point51°
Thu, 20111° / 83°0
111 °
Washington, Thursday, 20 August
Overcast. High 111°, low 83°.
Pressure29.80 inHg
Wind19.8 mph SW
Humidity18%
Visibility—
Dew point53°
Fri, 2195° / 73°0.17
95 °
Washington, Friday, 21 August
Light rain. High 95°, low 73°.
Pressure29.88 inHg
Wind16.5 mph N
Humidity40%
Visibility—
Dew point62°
Sat, 22100° / 71°0.06
100 °
Washington, Saturday, 22 August
Light rain. High 100°, low 71°.
Pressure29.91 inHg
Wind14.5 mph NE
Humidity37%
Visibility—
Dew point60°
Sun, 23102° / 74°0
102 °
Washington, Sunday, 23 August
Overcast. High 102°, low 74°.
Pressure29.97 inHg
Wind18.3 mph NE
Humidity29%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2491° / 74°0.03
91 °
Washington, Monday, 24 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.03 in
Chance of precipitation18%
Record high107° (2011)
Record low60° (1961)
Tue, 2591° / 74°0.05
91 °
Washington, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.05 in
Chance of precipitation20%
Record high102° (2006)
Record low58° (1966)
Wed, 2691° / 74°0.07
91 °
Washington, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.07 in
Chance of precipitation23%
Record high102° (1999)
Record low62° (1966)
Thu, 2790° / 74°0.11
90 °
Washington, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.11 in
Chance of precipitation30%
Record high104° (2011)
Record low64° (1992)
Fri, 2890° / 73°0.05
90 °
Washington, Friday, 28 August
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.05 in
Chance of precipitation18%
Record high106° (2011)
Record low61° (1992)
Sat, 2989° / 73°0.07
89 °
Washington, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.07 in
Chance of precipitation18%
Record high103° (2011)
Record low62° (1986)
Sun, 3089° / 72°0.09
89 °
Washington, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.09 in
Chance of precipitation23%
Record high103° (2011)
Record low61° (1988)
Mon, 3189° / 73°0.12
89 °
Washington, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.12 in
Chance of precipitation30%
Record high102° (2011)
Record low61° (2009)
Tue, 0188° / 72°0.22
88 °
Washington, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.22 in
Chance of precipitation25%
Record high103° (2000)
Record low60° (1967)
Wed, 0288° / 72°0.12
88 °
Washington, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.12 in
Chance of precipitation32%
Record high103° (2000)
Record low57° (1974)
Thu, 0388° / 71°0.06
88 °
Washington, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.06 in
Chance of precipitation25%
Record high106° (2000)
Record low53° (1974)
Fri, 0488° / 71°0.11
88 °
Washington, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.11 in
Chance of precipitation20%
Record high106° (2000)
Record low57° (1974)
Sat, 0587° / 71°0.12
87 °
Washington, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.12 in
Chance of precipitation25%
Record high103° (1998)
Record low52° (1974)
Sun, 0688° / 70°0.09
88 °
Washington, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.09 in
Chance of precipitation20%
Record high99° (1998)
Record low57° (1974)
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 Washington, OK 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 Washington, OK 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.