Monthly outlook for Richardson, OR: average high 63.8°, average low 42.8°. That is 0.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 6 days and 2.8 inches. The warmest day looks like 15 October (75.9°), the coolest 13 October (34.6°).
63.8°/42.8°
Average high / low
+0.4°
Above normal
3 / 6
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
65.6°
64.2°
+0.8°
21 October – 30 October
60.8°
60.2°
+0.3°
31 October – 9 November
at normal
57.3°
—
October records over 66 years
93.9°2 October 1980All-time high
31.1°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Mapleton (8 mi).
Mon, 1260° / 35°0
60 °
Richardson, Monday, 12 October
Clear. High 60°, low 35°.
Pressure30.03 inHg
Wind0.4 mph E
Humidity46%
Visibility6.2 mi
Dew point39°
Tue, 1368° / 35°0
68 °
Richardson, Tuesday, 13 October
Overcast. High 68°, low 35°.
Pressure30.18 inHg
Wind2.3 mph E
Humidity39%
Visibility6.2 mi
Dew point37°
Wed, 1470° / 43°0
70 °
Richardson, Wednesday, 14 October
Clear. High 70°, low 43°.
Pressure30.27 inHg
Wind4.3 mph NE
Humidity43%
Visibility6.2 mi
Dew point43°
Thu, 1576° / 49°0
76 °
Richardson, Thursday, 15 October
Clear. High 76°, low 49°.
Pressure30.21 inHg
Wind6.4 mph E
Humidity54%
Visibility6.2 mi
Dew point49°
Fri, 1675° / 48°0
75 °
Richardson, Friday, 16 October
Clear. High 75°, low 48°.
Pressure30.09 inHg
Wind6.8 mph NW
Humidity42%
Visibility—
Dew point47°
Sat, 1768° / 54°0
68 °
Richardson, Saturday, 17 October
Partly cloudy. High 68°, low 54°.
Pressure30.15 inHg
Wind6.6 mph W
Humidity69%
Visibility—
Dew point50°
Sun, 1869° / 47°0
69 °
Richardson, Sunday, 18 October
Partly cloudy. High 69°, low 47°.
Pressure30.12 inHg
Wind6.4 mph W
Humidity60%
Visibility—
Dew point46°
Mon, 1953° / 49°0.44
53 °
Richardson, Monday, 19 October
Rain. High 53°, low 49°.
Pressure30.00 inHg
Wind11.7 mph W
Humidity92%
Visibility—
Dew point50°
Tue, 2057° / 42°0.14
57 °
Richardson, Tuesday, 20 October
Light rain. High 57°, low 42°.
Pressure30.27 inHg
Wind9.5 mph NW
Humidity82%
Visibility—
Dew point46°
Wed, 2157° / 41°0
57 °
Richardson, Wednesday, 21 October
Overcast. High 57°, low 41°.
Pressure30.21 inHg
Wind3 mph E
Humidity70%
Visibility—
Dew point40°
Thu, 2271° / 45°0
71 °
Richardson, Thursday, 22 October
Partly cloudy. High 71°, low 45°.
Pressure30.09 inHg
Wind5.2 mph W
Humidity52%
Visibility—
Dew point41°
Fri, 2353° / 42°0.13
53 °
Richardson, Friday, 23 October
Light rain. High 53°, low 42°.
Pressure30.03 inHg
Wind5.5 mph NW
Humidity98%
Visibility—
Dew point51°
Sat, 2459° / 39°0
59 °
Richardson, Saturday, 24 October
Clear. High 59°, low 39°.
Pressure30.06 inHg
Wind7.8 mph NE
Humidity76%
Visibility—
Dew point42°
Sun, 2560° / 40°0
60 °
Richardson, Sunday, 25 October
Overcast. High 60°, low 40°.
Pressure30.00 inHg
Wind5.1 mph NE
Humidity71%
Visibility—
Dew point39°
Mon, 2664° / 38°0
64 °
Richardson, Monday, 26 October
Clear. High 64°, low 38°.
Pressure30.00 inHg
Wind6.5 mph E
Humidity46%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2760° / 47°0.24
60 °
Richardson, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.24 in
Chance of precipitation47%
Record high79° (1987)
Record low37° (1971)
Wed, 2859° / 47°0.29
59 °
Richardson, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.29 in
Chance of precipitation57%
Record high73° (1962)
Record low32° (1971)
Thu, 2958° / 47°0.2
58 °
Richardson, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.2 in
Chance of precipitation43%
Record high73° (1993)
Record low33° (1971)
Fri, 3058° / 46°0.22
58 °
Richardson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.22 in
Chance of precipitation40%
Record high71° (1967)
Record low34° (1991)
Sat, 3159° / 46°0.22
59 °
Richardson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.22 in
Chance of precipitation48%
Record high74° (1966)
Record low31° (2019)
Sun, 0159° / 47°0.3
59 °
Richardson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.3 in
Chance of precipitation45%
Record high73° (1962)
Record low33° (2003)
Mon, 0259° / 46°0.26
59 °
Richardson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.26 in
Chance of precipitation42%
Record high70° (1976)
Record low37° (2002)
Tue, 0359° / 47°0.22
59 °
Richardson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.22 in
Chance of precipitation45%
Record high72° (1976)
Record low34° (1973)
Wed, 0458° / 47°0.37
58 °
Richardson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.37 in
Chance of precipitation63%
Record high70° (1976)
Record low37° (2011)
Thu, 0557° / 46°0.37
57 °
Richardson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.37 in
Chance of precipitation62%
Record high67° (1987)
Record low34° (1971)
Fri, 0657° / 47°0.31
57 °
Richardson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.31 in
Chance of precipitation67%
Record high67° (1999)
Record low36° (1971)
Sat, 0756° / 46°0.33
56 °
Richardson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.33 in
Chance of precipitation58%
Record high67° (1991)
Record low37° (2022)
Sun, 0855° / 44°0.3
55 °
Richardson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.3 in
Chance of precipitation48%
Record high69° (1976)
Record low34° (2020)
Mon, 0955° / 45°0.3
55 °
Richardson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.3 in
Chance of precipitation52%
Record high68° (2025)
Record low29° (2022)
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 Richardson, 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 Richardson, 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.