Monthly outlook for Diamond, OR: average high 67.1°, average low 45.3°. That is 2.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 8 October (83.3°), the coolest 11 October (35.1°).
67.1°/45.3°
Average high / low
+2.5°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 October – 15 October
67.7°
63.6°
+2.3°
16 October – 25 October
66°
59.8°
+3.5°
26 October – 4 November
at normal
53.3°
—
October records over 66 years
89.6°1 October 2010All-time high
0.7°30 October 1991All-time low
Wed, 0781° / 47°0
81 °
Diamond, Wednesday, 7 October
Clear. High 81°, low 47°.
Pressure30.03 inHg
Wind4 mph N
Humidity24%
Visibility6.2 mi
Dew point37°
Thu, 0883° / 47°0
83 °
Diamond, Thursday, 8 October
Clear. High 83°, low 47°.
Pressure30.00 inHg
Wind2.4 mph N
Humidity23%
Visibility6.2 mi
Dew point35°
Fri, 0982° / 55°0
82 °
Diamond, Friday, 9 October
Mostly clear. High 82°, low 55°.
Pressure29.74 inHg
Wind6.1 mph W
Humidity19%
Visibility6.2 mi
Dew point31°
Sat, 1056° / 42°0
56 °
Diamond, Saturday, 10 October
Clear. High 56°, low 42°.
Pressure29.74 inHg
Wind6.4 mph NW
Humidity47%
Visibility6.2 mi
Dew point29°
Sun, 1153° / 35°0
53 °
Diamond, Sunday, 11 October
Mostly clear. High 53°, low 35°.
Pressure29.88 inHg
Wind15.3 mph N
Humidity59%
Visibility—
Dew point31°
Mon, 1255° / 36°0.14
55 °
Diamond, Monday, 12 October
Light rain. High 55°, low 36°.
Pressure29.83 inHg
Wind5.9 mph NE
Humidity74%
Visibility—
Dew point37°
Tue, 1361° / 51°0
61 °
Diamond, Tuesday, 13 October
Light rain. High 61°, low 51°.
Pressure29.88 inHg
Wind9.2 mph W
Humidity59%
Visibility—
Dew point41°
Wed, 1467° / 46°0
67 °
Diamond, Wednesday, 14 October
Mostly clear. High 67°, low 46°.
Pressure30.09 inHg
Wind10.5 mph W
Humidity40%
Visibility—
Dew point31°
Thu, 1559° / 40°0
59 °
Diamond, Thursday, 15 October
Clear. High 59°, low 40°.
Pressure30.50 inHg
Wind10 mph NE
Humidity29%
Visibility—
Dew point19°
Fri, 1666° / 44°0
66 °
Diamond, Friday, 16 October
Clear. High 66°, low 44°.
Pressure30.47 inHg
Wind7.2 mph SE
Humidity13%
Visibility—
Dew point6°
Sat, 1768° / 47°0
68 °
Diamond, Saturday, 17 October
Clear. High 68°, low 47°.
Pressure30.24 inHg
Wind5.9 mph N
Humidity17%
Visibility—
Dew point14°
Sun, 1870° / 49°0
70 °
Diamond, Sunday, 18 October
Clear. High 70°, low 49°.
Pressure30.03 inHg
Wind5.1 mph N
Humidity17%
Visibility—
Dew point17°
Mon, 1967° / 50°0
67 °
Diamond, Monday, 19 October
Partly cloudy. High 67°, low 50°.
Pressure30.03 inHg
Wind5.8 mph W
Humidity22%
Visibility—
Dew point21°
Tue, 2071° / 52°0
71 °
Diamond, Tuesday, 20 October
Overcast. High 71°, low 52°.
Pressure29.91 inHg
Wind18.1 mph SW
Humidity16%
Visibility—
Dew point17°
Wed, 2154° / 40°0
54 °
Diamond, Wednesday, 21 October
Clear. High 54°, low 40°.
Pressure30.36 inHg
Wind17.2 mph NW
Humidity50%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2258° / 40°0.04
58 °
Diamond, Thursday, 22 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.04 in
Chance of precipitation23%
Record high79° (2003)
Record low15° (1984)
Fri, 2358° / 40°0.06
58 °
Diamond, Friday, 23 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.06 in
Chance of precipitation32%
Record high74° (1999)
Record low16° (1984)
Sat, 2458° / 39°0.05
58 °
Diamond, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2005)
Record low25° (1975)
Sun, 2557° / 39°0.06
57 °
Diamond, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low39°
Average precipitation0.06 in
Chance of precipitation35%
Record high73° (1988)
Record low20° (2020)
Mon, 2656° / 38°0.06
56 °
Diamond, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.06 in
Chance of precipitation35%
Record high70° (1986)
Record low20° (2020)
Tue, 2755° / 36°0.03
55 °
Diamond, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.03 in
Chance of precipitation23%
Record high74° (2003)
Record low14° (1970)
Wed, 2855° / 38°0.06
55 °
Diamond, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.06 in
Chance of precipitation30%
Record high75° (1968)
Record low17° (1970)
Thu, 2953° / 37°0.06
53 °
Diamond, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2008)
Record low13° (1971)
Fri, 3052° / 35°0.04
52 °
Diamond, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.04 in
Chance of precipitation25%
Record high71° (2008)
Record low1° (1991)
Sat, 3153° / 36°0.02
53 °
Diamond, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.02 in
Chance of precipitation20%
Record high73° (1988)
Record low10° (1991)
Sun, 0152° / 36°0.06
52 °
Diamond, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1965)
Record low17° (2002)
Mon, 0252° / 35°0.05
52 °
Diamond, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (2020)
Record low9° (1971)
Tue, 0353° / 35°0.04
53 °
Diamond, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (2020)
Record low17° (1991)
Wed, 0452° / 36°0.06
52 °
Diamond, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation35%
Record high68° (1980)
Record low21° (2003)
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 Diamond, 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 Diamond, 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.