Monthly outlook for Johnson Crossing, OR: average high 86.6°, average low 54.9°. That is 2.9° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 16 August (95.5°), the coolest 13 August (51.5°).
86.6°/54.9°
Average high / low
+2.9°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.1°
82.4°
+3.1°
18 August – 27 August
84.2°
79.7°
+2.5°
28 August – 6 September
at normal
78.2°
—
August records over 66 years
104.7°12 August 2021All-time high
46°18 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Hillsboro (14 mi).
Sun, 0983° / 54°0
83 °
Johnson Crossing, Sunday, 9 August
Partly cloudy. High 83°, low 54°.
Pressure30.06 inHg
Wind6 mph N
Humidity36%
Visibility6.2 mi
Dew point47°
Mon, 1084° / 53°0
84 °
Johnson Crossing, Monday, 10 August
Clear. High 84°, low 53°.
Pressure30.06 inHg
Wind6.1 mph N
Humidity39%
Visibility6.2 mi
Dew point49°
Tue, 1185° / 52°0
85 °
Johnson Crossing, Tuesday, 11 August
Clear. High 85°, low 52°.
Pressure30.06 inHg
Wind6.2 mph N
Humidity40%
Visibility6.2 mi
Dew point52°
Wed, 1281° / 54°0
81 °
Johnson Crossing, Wednesday, 12 August
Clear. High 81°, low 54°.
Pressure30.03 inHg
Wind4.9 mph NW
Humidity43%
Visibility6.2 mi
Dew point51°
Thu, 1386° / 51°0
86 °
Johnson Crossing, Thursday, 13 August
Clear. High 86°, low 51°.
Pressure29.91 inHg
Wind10.6 mph N
Humidity34%
Visibility—
Dew point49°
Fri, 1493° / 55°0
93 °
Johnson Crossing, Friday, 14 August
Clear. High 93°, low 55°.
Pressure29.91 inHg
Wind7.2 mph NW
Humidity25%
Visibility—
Dew point47°
Sat, 1593° / 59°0
93 °
Johnson Crossing, Saturday, 15 August
Overcast. High 93°, low 59°.
Pressure29.97 inHg
Wind6.5 mph NW
Humidity25%
Visibility—
Dew point49°
Sun, 1695° / 59°0
95 °
Johnson Crossing, Sunday, 16 August
Clear. High 95°, low 59°.
Pressure29.97 inHg
Wind8.1 mph NW
Humidity23%
Visibility—
Dew point48°
Mon, 1792° / 58°0
92 °
Johnson Crossing, Monday, 17 August
Overcast. High 92°, low 58°.
Pressure29.94 inHg
Wind7.1 mph NW
Humidity22%
Visibility—
Dew point44°
Tue, 1887° / 56°0
87 °
Johnson Crossing, Tuesday, 18 August
Overcast. High 87°, low 56°.
Pressure30.00 inHg
Wind7.2 mph NW
Humidity31%
Visibility—
Dew point48°
Wed, 1984° / 54°0
84 °
Johnson Crossing, Wednesday, 19 August
Overcast. High 84°, low 54°.
Pressure30.03 inHg
Wind8.4 mph NW
Humidity29%
Visibility—
Dew point46°
Thu, 2082° / 55°0
82 °
Johnson Crossing, Thursday, 20 August
Clear. High 82°, low 55°.
Pressure30.00 inHg
Wind9.8 mph NW
Humidity33%
Visibility—
Dew point48°
Fri, 2184° / 53°0
84 °
Johnson Crossing, Friday, 21 August
Mostly clear. High 84°, low 53°.
Pressure29.97 inHg
Wind8.6 mph NW
Humidity34%
Visibility—
Dew point48°
Sat, 2287° / 53°0
87 °
Johnson Crossing, Saturday, 22 August
Overcast. High 87°, low 53°.
Pressure29.94 inHg
Wind10.7 mph NW
Humidity29%
Visibility—
Dew point48°
Sun, 2380° / 52°0
80 °
Johnson Crossing, Sunday, 23 August
Overcast. High 80°, low 52°.
Pressure30.00 inHg
Wind10.3 mph NW
Humidity25%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 56°0.05
79 °
Johnson Crossing, Monday, 24 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.05 in
Chance of precipitation12%
Record high99° (1996)
Record low49° (2021)
Tue, 2580° / 56°0.04
80 °
Johnson Crossing, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.04 in
Chance of precipitation17%
Record high94° (1996)
Record low48° (2024)
Wed, 2681° / 56°0.02
81 °
Johnson Crossing, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.02 in
Chance of precipitation12%
Record high99° (1986)
Record low48° (1973)
Thu, 2780° / 57°0.02
80 °
Johnson Crossing, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low57°
Average precipitation0.02 in
Chance of precipitation15%
Record high97° (1972)
Record low49° (1960)
Fri, 2880° / 56°0.02
80 °
Johnson Crossing, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.02 in
Chance of precipitation13%
Record high98° (1967)
Record low47° (2024)
Sat, 2979° / 57°0.06
79 °
Johnson Crossing, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low57°
Average precipitation0.06 in
Chance of precipitation20%
Record high93° (1974)
Record low47° (1965)
Sun, 3077° / 57°0.04
77 °
Johnson Crossing, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low57°
Average precipitation0.04 in
Chance of precipitation17%
Record high97° (2022)
Record low48° (2020)
Mon, 3177° / 56°0.03
77 °
Johnson Crossing, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low56°
Average precipitation0.03 in
Chance of precipitation15%
Record high100° (1987)
Record low46° (1964)
Tue, 0178° / 55°0.05
78 °
Johnson Crossing, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.05 in
Chance of precipitation18%
Record high95° (1988)
Record low46° (1973)
Wed, 0279° / 55°0.03
79 °
Johnson Crossing, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.03 in
Chance of precipitation13%
Record high102° (1988)
Record low44° (1960)
Thu, 0378° / 56°0.04
78 °
Johnson Crossing, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.04 in
Chance of precipitation18%
Record high97° (2017)
Record low46° (1964)
Fri, 0479° / 55°0.03
79 °
Johnson Crossing, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.03 in
Chance of precipitation17%
Record high101° (2017)
Record low47° (2015)
Sat, 0578° / 55°0.02
78 °
Johnson Crossing, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.02 in
Chance of precipitation12%
Record high99° (2024)
Record low45° (1969)
Sun, 0678° / 55°0.06
78 °
Johnson Crossing, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.06 in
Chance of precipitation15%
Record high96° (2024)
Record low46° (1960)
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 Johnson Crossing, OR 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 Johnson Crossing, OR 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.