Monthly outlook for Greenhorn, OR: average high 39.6°, average low 27°. That is 0.5° below the climate normal for October. Precipitation is expected on 9 days (about 2.0 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 9 November (48.8°), the coolest 2 November (21.1°).
39.6°/27°
Average high / low
−0.5°
Below normal
9 / 7
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
39.4°
42°
-1.5°
4 November – 13 November
40.1°
37.3°
+1.5°
14 November – 23 November
at normal
32.8°
—
October records over 66 years
79.3°2 October 2010All-time high
-8.5°27 October 1970All-time low
Mon, 2638° / 23°0.08
38 °
Greenhorn, Monday, 26 October
Snow. High 38°, low 23°.
Pressure30.03 inHg
Wind5.2 mph W
Humidity76%
Visibility4.9 mi
Dew point32°
Tue, 2737° / 28°0.08
37 °
Greenhorn, Tuesday, 27 October
Snow. High 37°, low 28°.
Pressure30.06 inHg
Wind3.5 mph SW
Humidity80%
Visibility6.2 mi
Dew point30°
Wed, 2836° / 25°0.03
36 °
Greenhorn, Wednesday, 28 October
Snow. High 36°, low 25°.
Pressure30.09 inHg
Wind3.9 mph SW
Humidity83%
Visibility6.2 mi
Dew point28°
Thu, 2943° / 25°0
43 °
Greenhorn, Thursday, 29 October
Overcast. High 43°, low 25°.
Pressure29.97 inHg
Wind5.3 mph S
Humidity68%
Visibility—
Dew point27°
Fri, 3042° / 27°0.04
42 °
Greenhorn, Friday, 30 October
Light rain. High 42°, low 27°.
Pressure29.85 inHg
Wind6.2 mph SE
Humidity65%
Visibility—
Dew point28°
Sat, 3144° / 26°0
44 °
Greenhorn, Saturday, 31 October
Overcast. High 44°, low 26°.
Pressure29.91 inHg
Wind11.1 mph S
Humidity44%
Visibility—
Dew point16°
Sun, 0136° / 25°0.22
36 °
Greenhorn, Sunday, 1 November
Snow. High 36°, low 25°.
Pressure29.68 inHg
Wind7.5 mph NW
Humidity77%
Visibility—
Dew point28°
Mon, 0234° / 21°0.08
34 °
Greenhorn, Monday, 2 November
Light snow. High 34°, low 21°.
Pressure30.18 inHg
Wind7.2 mph W
Humidity66%
Visibility—
Dew point20°
Tue, 0339° / 22°0
39 °
Greenhorn, Tuesday, 3 November
Overcast. High 39°, low 22°.
Pressure30.27 inHg
Wind7.8 mph SE
Humidity64%
Visibility—
Dew point22°
Wed, 0444° / 27°0
44 °
Greenhorn, Wednesday, 4 November
Overcast. High 44°, low 27°.
Pressure29.91 inHg
Wind10.1 mph S
Humidity61%
Visibility—
Dew point23°
Thu, 0534° / 31°0.46
34 °
Greenhorn, Thursday, 5 November
Snow. High 34°, low 31°.
Pressure29.80 inHg
Wind10.7 mph SE
Humidity98%
Visibility—
Dew point31°
Fri, 0637° / 30°0.31
37 °
Greenhorn, Friday, 6 November
Snow. High 37°, low 30°.
Pressure29.44 inHg
Wind12.8 mph SW
Humidity73%
Visibility—
Dew point29°
Sat, 0737° / 30°0.34
37 °
Greenhorn, Saturday, 7 November
Snow. High 37°, low 30°.
Pressure29.91 inHg
Wind9.3 mph SW
Humidity79%
Visibility—
Dew point28°
Sun, 0839° / 33°0.39
39 °
Greenhorn, Sunday, 8 November
Rain. High 39°, low 33°.
Pressure30.00 inHg
Wind7.8 mph SE
Humidity99%
Visibility—
Dew point34°
Mon, 0949° / 37°0
49 °
Greenhorn, Monday, 9 November
Overcast. High 49°, low 37°.
Pressure30.00 inHg
Wind11.1 mph SE
Humidity94%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1036° / 22°0.1
36 °
Greenhorn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.1 in
Chance of precipitation43%
Record high56° (2016)
Record low-8° (1986)
Wed, 1136° / 22°0.09
36 °
Greenhorn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.09 in
Chance of precipitation37%
Record high55° (2016)
Record low2° (1985)
Thu, 1236° / 22°0.11
36 °
Greenhorn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.11 in
Chance of precipitation40%
Record high57° (1999)
Record low-6° (1985)
Fri, 1335° / 22°0.14
35 °
Greenhorn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.14 in
Chance of precipitation52%
Record high57° (1999)
Record low0° (1985)
Sat, 1435° / 20°0.09
35 °
Greenhorn, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.09 in
Chance of precipitation50%
Record high55° (1999)
Record low1° (1994)
Sun, 1535° / 21°0.09
35 °
Greenhorn, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.09 in
Chance of precipitation42%
Record high47° (2001)
Record low-10° (2014)
Mon, 1635° / 21°0.12
35 °
Greenhorn, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.12 in
Chance of precipitation57%
Record high50° (2008)
Record low-15° (2014)
Tue, 1734° / 21°0.15
34 °
Greenhorn, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high34°
Average low21°
Average precipitation0.15 in
Chance of precipitation50%
Record high51° (1976)
Record low-1° (1964)
Wed, 1832° / 19°0.12
32 °
Greenhorn, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high32°
Average low19°
Average precipitation0.12 in
Chance of precipitation53%
Record high51° (2008)
Record low-4° (2022)
Thu, 1932° / 18°0.13
32 °
Greenhorn, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.13 in
Chance of precipitation50%
Record high46° (1989)
Record low-2° (2024)
Fri, 2032° / 18°0.11
32 °
Greenhorn, Friday, 20 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.11 in
Chance of precipitation52%
Record high47° (1989)
Record low-12° (1977)
Sat, 2131° / 17°0.12
31 °
Greenhorn, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.12 in
Chance of precipitation50%
Record high46° (2002)
Record low-3° (1977)
Sun, 2230° / 17°0.14
30 °
Greenhorn, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high30°
Average low17°
Average precipitation0.14 in
Chance of precipitation53%
Record high45° (2002)
Record low-8° (1994)
Mon, 2331° / 15°0.12
31 °
Greenhorn, Monday, 23 November
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.12 in
Chance of precipitation57%
Record high47° (2017)
Record low-22° (1985)
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 Greenhorn, 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 Greenhorn, 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.