Monthly outlook for Union Gap, OR: average high 66°, average low 42.7°. That is 0.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 15 October (80.1°), the coolest 12 October (36.9°).
66°/42.7°
Average high / low
+0.5°
Above normal
3 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
68.2°
66.5°
+0.9°
22 October – 31 October
62.4°
61.6°
+0.5°
1 November – 10 November
at normal
58.1°
—
October records over 66 years
97.3°2 October 1980All-time high
27.1°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Roseburg (13 mi).
Tue, 1370° / 38°0
70 °
Union Gap, Tuesday, 13 October
Overcast. High 70°, low 38°.
Pressure30.18 inHg
Wind0.2 mph W
Humidity41%
Visibility6.2 mi
Dew point37°
Wed, 1471° / 43°0
71 °
Union Gap, Wednesday, 14 October
Clear. High 71°, low 43°.
Pressure30.24 inHg
Wind3.2 mph N
Humidity39%
Visibility6.2 mi
Dew point39°
Thu, 1580° / 45°0
80 °
Union Gap, Thursday, 15 October
Clear. High 80°, low 45°.
Pressure30.21 inHg
Wind0.3 mph NW
Humidity42%
Visibility6.2 mi
Dew point43°
Fri, 1678° / 48°0
78 °
Union Gap, Friday, 16 October
Clear. High 78°, low 48°.
Pressure30.15 inHg
Wind9.8 mph NW
Humidity38%
Visibility—
Dew point38°
Sat, 1771° / 49°0
71 °
Union Gap, Saturday, 17 October
Overcast. High 71°, low 49°.
Pressure30.15 inHg
Wind9.2 mph NW
Humidity76%
Visibility—
Dew point51°
Sun, 1872° / 48°0
72 °
Union Gap, Sunday, 18 October
Partly cloudy. High 72°, low 48°.
Pressure30.09 inHg
Wind5.6 mph NW
Humidity56%
Visibility—
Dew point49°
Mon, 1956° / 46°0.24
56 °
Union Gap, Monday, 19 October
Light rain. High 56°, low 46°.
Pressure30.03 inHg
Wind7.3 mph SW
Humidity77%
Visibility—
Dew point48°
Tue, 2060° / 44°0.16
60 °
Union Gap, Tuesday, 20 October
Light rain. High 60°, low 44°.
Pressure30.27 inHg
Wind4.4 mph S
Humidity73%
Visibility—
Dew point45°
Wed, 2162° / 42°0
62 °
Union Gap, Wednesday, 21 October
Overcast. High 62°, low 42°.
Pressure30.24 inHg
Wind3.4 mph S
Humidity58%
Visibility—
Dew point36°
Thu, 2273° / 44°0
73 °
Union Gap, Thursday, 22 October
Overcast. High 73°, low 44°.
Pressure30.09 inHg
Wind5.7 mph NW
Humidity54%
Visibility—
Dew point41°
Fri, 2353° / 45°0.1
53 °
Union Gap, Friday, 23 October
Light rain. High 53°, low 45°.
Pressure30.03 inHg
Wind3.8 mph N
Humidity94%
Visibility—
Dew point50°
Sat, 2460° / 40°0
60 °
Union Gap, Saturday, 24 October
Partly cloudy. High 60°, low 40°.
Pressure30.06 inHg
Wind7.8 mph N
Humidity79%
Visibility—
Dew point42°
Sun, 2563° / 37°0
63 °
Union Gap, Sunday, 25 October
Partly cloudy. High 63°, low 37°.
Pressure30.00 inHg
Wind6.3 mph N
Humidity64%
Visibility—
Dew point39°
Mon, 2669° / 38°0
69 °
Union Gap, Monday, 26 October
Clear. High 69°, low 38°.
Pressure30.00 inHg
Wind5.1 mph N
Humidity42%
Visibility—
Dew point31°
Tue, 2757° / 39°0
57 °
Union Gap, Tuesday, 27 October
Partly cloudy. High 57°, low 39°.
Pressure29.88 inHg
Wind1.5 mph N
Humidity36%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2860° / 44°0.19
60 °
Union Gap, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.19 in
Chance of precipitation47%
Record high75° (1962)
Record low29° (2019)
Thu, 2960° / 43°0.13
60 °
Union Gap, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.13 in
Chance of precipitation45%
Record high74° (1962)
Record low27° (1971)
Fri, 3060° / 42°0.16
60 °
Union Gap, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.16 in
Chance of precipitation38%
Record high74° (1993)
Record low29° (1991)
Sat, 3160° / 43°0.12
60 °
Union Gap, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.12 in
Chance of precipitation47%
Record high76° (1966)
Record low27° (2019)
Sun, 0160° / 42°0.18
60 °
Union Gap, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.18 in
Chance of precipitation43%
Record high74° (1966)
Record low29° (2002)
Mon, 0260° / 42°0.14
60 °
Union Gap, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.14 in
Chance of precipitation38%
Record high73° (2020)
Record low30° (1971)
Tue, 0360° / 43°0.13
60 °
Union Gap, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.13 in
Chance of precipitation37%
Record high74° (2010)
Record low28° (1994)
Wed, 0459° / 43°0.23
59 °
Union Gap, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.23 in
Chance of precipitation57%
Record high74° (2020)
Record low33° (2017)
Thu, 0558° / 43°0.23
58 °
Union Gap, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.23 in
Chance of precipitation57%
Record high71° (1987)
Record low31° (1971)
Fri, 0658° / 43°0.24
58 °
Union Gap, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.24 in
Chance of precipitation60%
Record high71° (1999)
Record low30° (1971)
Sat, 0757° / 42°0.19
57 °
Union Gap, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.19 in
Chance of precipitation52%
Record high72° (1991)
Record low29° (2017)
Sun, 0856° / 40°0.18
56 °
Union Gap, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.18 in
Chance of precipitation50%
Record high71° (2016)
Record low29° (1983)
Mon, 0956° / 40°0.16
56 °
Union Gap, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.16 in
Chance of precipitation52%
Record high68° (1996)
Record low27° (2020)
Tue, 1056° / 41°0.15
56 °
Union Gap, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.15 in
Chance of precipitation45%
Record high70° (2016)
Record low21° (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 Union Gap, 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 Union Gap, 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.