Monthly outlook for Jacksonville, OR: average high 91.8°, average low 54.9°. That is 3.2° 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 8 August (99.4°), the coolest 14 August (51.2°).
91.8°/54.9°
Average high / low
+3.2°
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
91.6°
87.2°
+2.4°
18 August – 27 August
92.2°
84.3°
+4.3°
28 August – 6 September
at normal
83.4°
—
August records over 66 years
107.2°14 August 2023All-time high
44.2°20 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Medford (6 mi).
Sun, 0994° / 55°0
94 °
Jacksonville, Sunday, 9 August
Clear. High 94°, low 55°.
Pressure29.94 inHg
Wind2.8 mph N
Humidity21%
Visibility6.2 mi
Dew point40°
Mon, 1092° / 52°0
92 °
Jacksonville, Monday, 10 August
Clear. High 92°, low 52°.
Pressure29.94 inHg
Wind3 mph NE
Humidity22%
Visibility6.2 mi
Dew point40°
Tue, 1190° / 53°0
90 °
Jacksonville, Tuesday, 11 August
Clear. High 90°, low 53°.
Pressure30.00 inHg
Wind3 mph N
Humidity25%
Visibility6.2 mi
Dew point44°
Wed, 1288° / 53°0
88 °
Jacksonville, Wednesday, 12 August
Clear. High 88°, low 53°.
Pressure29.94 inHg
Wind2.9 mph NE
Humidity35%
Visibility6.2 mi
Dew point51°
Thu, 1387° / 52°0
87 °
Jacksonville, Thursday, 13 August
Mostly clear. High 87°, low 52°.
Pressure29.80 inHg
Wind8.6 mph NW
Humidity23%
Visibility—
Dew point41°
Fri, 1488° / 51°0
88 °
Jacksonville, Friday, 14 August
Overcast. High 88°, low 51°.
Pressure29.85 inHg
Wind4.9 mph NW
Humidity22%
Visibility—
Dew point40°
Sat, 1591° / 61°0
91 °
Jacksonville, Saturday, 15 August
Clear. High 91°, low 61°.
Pressure29.88 inHg
Wind10.1 mph W
Humidity21%
Visibility—
Dew point43°
Sun, 1693° / 56°0
93 °
Jacksonville, Sunday, 16 August
Clear. High 93°, low 56°.
Pressure29.91 inHg
Wind7.2 mph N
Humidity18%
Visibility—
Dew point39°
Mon, 1792° / 59°0
92 °
Jacksonville, Monday, 17 August
Overcast. High 92°, low 59°.
Pressure29.91 inHg
Wind12 mph NW
Humidity16%
Visibility—
Dew point36°
Tue, 1890° / 53°0
90 °
Jacksonville, Tuesday, 18 August
Mostly clear. High 90°, low 53°.
Pressure30.00 inHg
Wind6.8 mph NW
Humidity18%
Visibility—
Dew point36°
Wed, 1989° / 53°0
89 °
Jacksonville, Wednesday, 19 August
Overcast. High 89°, low 53°.
Pressure29.94 inHg
Wind6 mph NW
Humidity22%
Visibility—
Dew point39°
Thu, 2090° / 53°0
90 °
Jacksonville, Thursday, 20 August
Clear. High 90°, low 53°.
Pressure29.91 inHg
Wind8.4 mph NW
Humidity25%
Visibility—
Dew point44°
Fri, 2190° / 55°0
90 °
Jacksonville, Friday, 21 August
Partly cloudy. High 90°, low 55°.
Pressure29.94 inHg
Wind8.8 mph NW
Humidity25%
Visibility—
Dew point45°
Sat, 2296° / 56°0
96 °
Jacksonville, Saturday, 22 August
Clear. High 96°, low 56°.
Pressure29.83 inHg
Wind9 mph NW
Humidity21%
Visibility—
Dew point44°
Sun, 2398° / 61°0
98 °
Jacksonville, Sunday, 23 August
Mostly clear. High 98°, low 61°.
Pressure29.77 inHg
Wind8.5 mph NW
Humidity22%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 56°0.04
84 °
Jacksonville, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low56°
Average precipitation0.04 in
Chance of precipitation8%
Record high100° (1996)
Record low48° (1992)
Tue, 2584° / 56°0.06
84 °
Jacksonville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low56°
Average precipitation0.06 in
Chance of precipitation17%
Record high100° (2010)
Record low46° (1960)
Wed, 2685° / 56°0.02
85 °
Jacksonville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low56°
Average precipitation0.02 in
Chance of precipitation12%
Record high96° (2017)
Record low44° (1993)
Thu, 2785° / 57°0.02
85 °
Jacksonville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low57°
Average precipitation0.02 in
Chance of precipitation7%
Record high101° (2019)
Record low46° (1976)
Fri, 2885° / 57°0.01
85 °
Jacksonville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low57°
Average precipitation0.01 in
Chance of precipitation7%
Record high99° (2017)
Record low46° (1975)
Sat, 2984° / 57°0.03
84 °
Jacksonville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low57°
Average precipitation0.03 in
Chance of precipitation12%
Record high99° (2022)
Record low45° (1964)
Sun, 3082° / 56°0.06
82 °
Jacksonville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.06 in
Chance of precipitation18%
Record high99° (2024)
Record low45° (1965)
Mon, 3182° / 55°0.02
82 °
Jacksonville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.02 in
Chance of precipitation8%
Record high100° (1998)
Record low45° (2008)
Tue, 0183° / 55°0.02
83 °
Jacksonville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high102° (1998)
Record low42° (1973)
Wed, 0283° / 56°0.01
83 °
Jacksonville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low56°
Average precipitation0.01 in
Chance of precipitation10%
Record high104° (2017)
Record low42° (1964)
Thu, 0384° / 55°0.01
84 °
Jacksonville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low55°
Average precipitation0.01 in
Chance of precipitation8%
Record high103° (2020)
Record low43° (2000)
Fri, 0483° / 55°0.02
83 °
Jacksonville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low55°
Average precipitation0.02 in
Chance of precipitation12%
Record high100° (2024)
Record low46° (1999)
Sat, 0583° / 55°0.02
83 °
Jacksonville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low55°
Average precipitation0.02 in
Chance of precipitation8%
Record high102° (2024)
Record low48° (1970)
Sun, 0683° / 55°0.04
83 °
Jacksonville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low55°
Average precipitation0.04 in
Chance of precipitation10%
Record high104° (2022)
Record low45° (1969)
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 Jacksonville, 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 Jacksonville, 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.