Monthly outlook for Richland, OR: average high 55.5°, average low 41.1°. That is 0.4° below the climate normal for October. Precipitation is expected on 7 days (about 3.6 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 17 October (71.2°), the coolest 30 October (32.2°).
55.5°/41.1°
Average high / low
−0.4°
Below normal
7 / 5
Wet days / normal
3.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
61.7°
58.5°
+1.8°
27 October – 5 November
45.1°
51.2°
-3.4°
6 November – 15 November
at normal
46.4°
—
October records over 66 years
90°2 October 2010All-time high
4.6°27 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Halfway (8 mi).
Sun, 1869° / 39°0
69 °
Richland, Sunday, 18 October
Clear. High 69°, low 39°.
Pressure30.06 inHg
Wind1.8 mph S
Humidity43%
Visibility6.2 mi
Dew point38°
Mon, 1971° / 50°0
71 °
Richland, Monday, 19 October
Overcast. High 71°, low 50°.
Pressure29.85 inHg
Wind2.2 mph E
Humidity33%
Visibility6.2 mi
Dew point37°
Tue, 2067° / 43°0
67 °
Richland, Tuesday, 20 October
Overcast. High 67°, low 43°.
Pressure30.00 inHg
Wind1.9 mph SW
Humidity34%
Visibility6.2 mi
Dew point33°
Wed, 2171° / 50°0
71 °
Richland, Wednesday, 21 October
Partly cloudy. High 71°, low 50°.
Pressure30.00 inHg
Wind2.3 mph NE
Humidity40%
Visibility—
Dew point37°
Thu, 2258° / 52°0.39
58 °
Richland, Thursday, 22 October
Rain. High 58°, low 52°.
Pressure29.88 inHg
Wind2.3 mph NW
Humidity89%
Visibility—
Dew point51°
Fri, 2364° / 45°0
64 °
Richland, Friday, 23 October
Overcast. High 64°, low 45°.
Pressure29.88 inHg
Wind8.8 mph W
Humidity42%
Visibility—
Dew point34°
Sat, 2456° / 42°0.31
56 °
Richland, Saturday, 24 October
Rain. High 56°, low 42°.
Pressure30.00 inHg
Wind4.9 mph N
Humidity50%
Visibility—
Dew point34°
Sun, 2544° / 38°1.72
44 °
Richland, Sunday, 25 October
Snow. High 44°, low 38°.
Pressure29.97 inHg
Wind6 mph W
Humidity100%
Visibility—
Dew point39°
Mon, 2644° / 38°0.06
44 °
Richland, Monday, 26 October
Light rain. High 44°, low 38°.
Pressure29.97 inHg
Wind4.8 mph S
Humidity92%
Visibility—
Dew point41°
Tue, 2749° / 38°0.17
49 °
Richland, Tuesday, 27 October
Light rain. High 49°, low 38°.
Pressure29.88 inHg
Wind16.8 mph W
Humidity63%
Visibility—
Dew point36°
Wed, 2846° / 37°0.03
46 °
Richland, Wednesday, 28 October
Light rain. High 46°, low 37°.
Pressure30.15 inHg
Wind4.6 mph E
Humidity70%
Visibility—
Dew point33°
Thu, 2948° / 35°0.03
48 °
Richland, Thursday, 29 October
Light rain. High 48°, low 35°.
Pressure29.80 inHg
Wind10.8 mph W
Humidity86%
Visibility—
Dew point38°
Fri, 3047° / 32°0
47 °
Richland, Friday, 30 October
Mostly clear. High 47°, low 32°.
Pressure30.00 inHg
Wind4.7 mph W
Humidity68%
Visibility—
Dew point30°
Sat, 3140° / 37°0.39
40 °
Richland, Saturday, 31 October
Snow. High 40°, low 37°.
Pressure29.85 inHg
Wind3.6 mph E
Humidity87%
Visibility—
Dew point36°
Sun, 0140° / 36°0.54
40 °
Richland, Sunday, 1 November
Snow. High 40°, low 36°.
Pressure29.80 inHg
Wind3.8 mph E
Humidity100%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0250° / 35°0.09
50 °
Richland, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high66° (1962)
Record low8° (1971)
Tue, 0350° / 35°0.07
50 °
Richland, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (2020)
Record low18° (1994)
Wed, 0449° / 36°0.11
49 °
Richland, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation43%
Record high65° (2020)
Record low22° (2004)
Thu, 0549° / 36°0.09
49 °
Richland, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation40%
Record high65° (2020)
Record low-5° (1971)
Fri, 0649° / 36°0.12
49 °
Richland, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation45%
Record high64° (1999)
Record low4° (1971)
Sat, 0748° / 35°0.14
48 °
Richland, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.14 in
Chance of precipitation47%
Record high64° (1999)
Record low20° (1990)
Sun, 0847° / 34°0.11
47 °
Richland, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.11 in
Chance of precipitation38%
Record high61° (2016)
Record low6° (1994)
Mon, 0946° / 34°0.1
46 °
Richland, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.1 in
Chance of precipitation48%
Record high61° (1976)
Record low21° (1986)
Tue, 1046° / 33°0.09
46 °
Richland, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation38%
Record high62° (2016)
Record low10° (1986)
Wed, 1146° / 33°0.09
46 °
Richland, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation37%
Record high60° (2016)
Record low12° (2000)
Thu, 1246° / 33°0.12
46 °
Richland, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation40%
Record high64° (1999)
Record low6° (1985)
Fri, 1345° / 32°0.13
45 °
Richland, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.13 in
Chance of precipitation52%
Record high63° (1999)
Record low11° (1985)
Sat, 1445° / 32°0.09
45 °
Richland, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.09 in
Chance of precipitation47%
Record high62° (1999)
Record low11° (1964)
Sun, 1544° / 32°0.07
44 °
Richland, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high59° (2023)
Record low8° (2014)
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 Richland, 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 Richland, 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.