As of 03:41 PDT

Weather in Union, OR

52°

Union, Thursday, 8 October, 03:41

Clear. Feels like 50°. High 79°, low 47°.

Pressure30.09 inHg

Wind0.4 mph NW

Humidity63%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Union, OR: average high 58.2°, average low 40°. That is 0.7° below the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 8 October (78.7°), the coolest 12 October (34.2°).

58.2°/40°

Average high / low

−0.7°

Below normal

5 / 4

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	58.5°	60.6°	-1.2°
18 October – 27 October	57.7°	56.3°	+0.8°
28 October – 6 November	at normal	49.6°	—

October records over 66 years

88.7°2 October 2010All-time high

4.6°27 October 1970All-time low

Fri, 0968° / 44°

0.07

68 °

Union, Friday, 9 October

Rain. High 68°, low 44°.

Pressure29.71 inHg

Wind6.1 mph NE

Humidity32%

Visibility6.2 mi

Dew point39°

Sat, 1053° / 36°

53 °

Union, Saturday, 10 October

Partly cloudy. High 53°, low 36°.

Pressure29.80 inHg

Wind7.7 mph N

Humidity53%

Visibility6.2 mi

Dew point28°

Sun, 1149° / 36°

49 °

Union, Sunday, 11 October

Overcast. High 49°, low 36°.

Pressure29.85 inHg

Wind11.9 mph NW

Humidity58%

Visibility6.2 mi

Dew point32°

Mon, 1255° / 34°

55 °

Union, Monday, 12 October

Mostly clear. High 55°, low 34°.

Pressure30.03 inHg

Wind8.3 mph NW

Humidity57%

Visibility—

Dew point30°

Tue, 1362° / 35°

0.02

62 °

Union, Tuesday, 13 October

Light rain. High 62°, low 35°.

Pressure29.97 inHg

Wind11.9 mph NW

Humidity51%

Visibility—

Dew point31°

Wed, 1447° / 41°

0.23

47 °

Union, Wednesday, 14 October

Light rain. High 47°, low 41°.

Pressure29.85 inHg

Wind16.7 mph NW

Humidity66%

Visibility—

Dew point33°

Thu, 1551° / 38°

0.02

51 °

Union, Thursday, 15 October

Light snow. High 51°, low 38°.

Pressure30.30 inHg

Wind9.1 mph N

Humidity70%

Visibility—

Dew point35°

Fri, 1659° / 35°

59 °

Union, Friday, 16 October

Clear. High 59°, low 35°.

Pressure30.42 inHg

Wind6 mph SE

Humidity50%

Visibility—

Dew point30°

Sat, 1763° / 41°

63 °

Union, Saturday, 17 October

Partly cloudy. High 63°, low 41°.

Pressure30.27 inHg

Wind4.6 mph SE

Humidity33%

Visibility—

Dew point25°

Sun, 1867° / 45°

67 °

Union, Sunday, 18 October

Mostly clear. High 67°, low 45°.

Pressure30.15 inHg

Wind8.1 mph S

Humidity27%

Visibility—

Dew point24°

Mon, 1967° / 46°

67 °

Union, Monday, 19 October

Clear. High 67°, low 46°.

Pressure30.15 inHg

Wind3 mph SE

Humidity34%

Visibility—

Dew point29°

Tue, 2068° / 49°

68 °

Union, Tuesday, 20 October

Overcast. High 68°, low 49°.

Pressure30.09 inHg

Wind12.5 mph SE

Humidity24%

Visibility—

Dew point23°

Wed, 2158° / 41°

0.22

58 °

Union, Wednesday, 21 October

Rain. High 58°, low 41°.

Pressure29.71 inHg

Wind20.2 mph NW

Humidity65%

Visibility—

Dew point43°

Thu, 2244° / 36°

0.7

44 °

Union, Thursday, 22 October

Snow. High 44°, low 36°.

Pressure29.56 inHg

Wind15.5 mph SE

Humidity96%

Visibility—

Dew point36°

Fri, 2343° / 36°

0.07

43 °

Union, Friday, 23 October

Snow. High 43°, low 36°.

Pressure29.77 inHg

Wind10.7 mph SE

Humidity76%

Visibility—

Dew point35°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2455° / 37°

0.08

55 °

Union, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high55°

Average low37°

Average precipitation0.08 in

Chance of precipitation32%

Record high71° (1965)

Record low25° (1961)

Sun, 2555° / 38°

0.09

55 °

Union, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°

Average low38°

Average precipitation0.09 in

Chance of precipitation37%

Record high73° (1988)

Record low22° (2020)

Mon, 2654° / 37°

0.11

54 °

Union, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°

Average low37°

Average precipitation0.11 in

Chance of precipitation48%

Record high69° (2003)

Record low22° (1970)

Tue, 2753° / 35°

0.09

53 °

Union, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°

Average low35°

Average precipitation0.09 in

Chance of precipitation40%

Record high70° (1987)

Record low5° (1970)

Wed, 2851° / 35°

0.09

51 °

Union, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.09 in

Chance of precipitation48%

Record high71° (1987)

Record low9° (1971)

Thu, 2951° / 35°

0.09

51 °

Union, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.09 in

Chance of precipitation45%

Record high70° (1987)

Record low12° (1971)

Fri, 3050° / 35°

0.07

50 °

Union, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.07 in

Chance of precipitation30%

Record high66° (1962)

Record low10° (1991)

Sat, 3149° / 35°

0.11

49 °

Union, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.11 in

Chance of precipitation48%

Record high69° (1988)

Record low16° (2002)

Sun, 0150° / 35°

0.11

50 °

Union, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.11 in

Chance of precipitation50%

Record high67° (1988)

Record low15° (1984)

Mon, 0249° / 34°

0.08

49 °

Union, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.08 in

Chance of precipitation37%

Record high66° (1962)

Record low13° (1991)

Tue, 0349° / 33°

0.05

49 °

Union, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°

Average low33°

Average precipitation0.05 in

Chance of precipitation30%

Record high64° (2020)

Record low13° (1991)

Wed, 0449° / 35°

0.14

49 °

Union, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.14 in

Chance of precipitation48%

Record high65° (2020)

Record low18° (1973)

Thu, 0549° / 34°

0.1

49 °

Union, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.1 in

Chance of precipitation43%

Record high66° (2020)

Record low1° (1971)

Fri, 0648° / 34°

0.13

48 °

Union, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.13 in

Chance of precipitation48%

Record high64° (2010)

Record low7° (1971)

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, 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, 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.