As of 06:46 PDT

Weather in Tiernan, OR

41°Current weather

Tiernan, Sunday, 18 October, 06:46

Clear. Feels like 38°. High 62°, low 41°.

Pressure30.09 inHg
Wind5.1 mph NE
Humidity94%
Visibility6.2 mi
Dew point40°

Monthly outlook for Tiernan, OR: average high 60.6°, average low 41.5°. That is 0° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 7 days and 3.7 inches. The warmest day looks like 21 October (69.7°), the coolest 31 October (34°).

60.6°/41.5°
Average high / low
+0°
Above normal
3 / 7
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October62.1°61.6°+0.3°
28 October – 6 November58°58.2°-0.1°
7 November – 16 Novemberat normal55.5°—

October records over 66 years

93.9°2 October 1980All-time high
31.1°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Mapleton (4 mi).

Mon, 1961° / 44°0Partly cloudy
61 °Partly cloudy

Tiernan, Monday, 19 October

Partly cloudy. High 61°, low 44°.

Pressure29.97 inHg
Wind0.3 mph W
Humidity58%
Visibility6.2 mi
Dew point43°
Tue, 2068° / 47°0Overcast
68 °Overcast

Tiernan, Tuesday, 20 October

Overcast. High 68°, low 47°.

Pressure29.94 inHg
Wind0.3 mph N
Humidity50%
Visibility6.2 mi
Dew point45°
Wed, 2170° / 45°0Clear
70 °Clear

Tiernan, Wednesday, 21 October

Clear. High 70°, low 45°.

Pressure29.91 inHg
Wind3.2 mph W
Humidity45%
Visibility6.2 mi
Dew point45°
Thu, 2258° / 46°0Partly cloudy
58 °Partly cloudy

Tiernan, Thursday, 22 October

Partly cloudy. High 58°, low 46°.

Pressure30.06 inHg
Wind11 mph NW
Humidity76%
Visibility—
Dew point48°
Fri, 2357° / 39°0Overcast
57 °Overcast

Tiernan, Friday, 23 October

Overcast. High 57°, low 39°.

Pressure30.39 inHg
Wind7.1 mph N
Humidity60%
Visibility—
Dew point40°
Sat, 2467° / 38°0Overcast
67 °Overcast

Tiernan, Saturday, 24 October

Overcast. High 67°, low 38°.

Pressure30.27 inHg
Wind5.1 mph E
Humidity43%
Visibility—
Dew point32°
Sun, 2560° / 41°0Overcast
60 °Overcast

Tiernan, Sunday, 25 October

Overcast. High 60°, low 41°.

Pressure30.18 inHg
Wind7.1 mph NW
Humidity58%
Visibility—
Dew point43°
Mon, 2659° / 39°0Mostly clear
59 °Mostly clear

Tiernan, Monday, 26 October

Mostly clear. High 59°, low 39°.

Pressure30.03 inHg
Wind6.8 mph NW
Humidity55%
Visibility—
Dew point37°
Tue, 2760° / 38°0Clear
60 °Clear

Tiernan, Tuesday, 27 October

Clear. High 60°, low 38°.

Pressure30.06 inHg
Wind6 mph NW
Humidity59%
Visibility—
Dew point38°
Wed, 2857° / 38°0Mostly clear
57 °Mostly clear

Tiernan, Wednesday, 28 October

Mostly clear. High 57°, low 38°.

Pressure30.09 inHg
Wind6.3 mph NW
Humidity54%
Visibility—
Dew point36°
Thu, 2956° / 39°0.07Light rain
56 °Light rain

Tiernan, Thursday, 29 October

Light rain. High 56°, low 39°.

Pressure30.09 inHg
Wind7.7 mph NW
Humidity78%
Visibility—
Dew point44°
Fri, 3060° / 36°0Clear
60 °Clear

Tiernan, Friday, 30 October

Clear. High 60°, low 36°.

Pressure30.21 inHg
Wind4.6 mph E
Humidity55%
Visibility—
Dew point34°
Sat, 3163° / 34°0Overcast
63 °Overcast

Tiernan, Saturday, 31 October

Overcast. High 63°, low 34°.

Pressure30.03 inHg
Wind5.6 mph E
Humidity39%
Visibility—
Dew point25°
Sun, 0153° / 44°0.62Rain
53 °Rain

Tiernan, Sunday, 1 November

Rain. High 53°, low 44°.

Pressure29.71 inHg
Wind9.2 mph S
Humidity61%
Visibility—
Dew point34°
Mon, 0260° / 55°0.37Rain
60 °Rain

Tiernan, Monday, 2 November

Rain. High 60°, low 55°.

Pressure29.80 inHg
Wind18 mph SW
Humidity91%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0359° / 47°0.22Climate normal
59 °Climate normal

Tiernan, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low47°
Average precipitation0.22 in
Chance of precipitation45%
Record high72° (1976)
Record low34° (1973)
Wed, 0458° / 47°0.37Climate normal
58 °Climate normal

Tiernan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low47°
Average precipitation0.37 in
Chance of precipitation63%
Record high70° (1976)
Record low37° (2011)
Thu, 0557° / 46°0.37Climate normal
57 °Climate normal

Tiernan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°
Average low46°
Average precipitation0.37 in
Chance of precipitation62%
Record high67° (1987)
Record low34° (1971)
Fri, 0657° / 47°0.31Climate normal
57 °Climate normal

Tiernan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low47°
Average precipitation0.31 in
Chance of precipitation67%
Record high67° (1999)
Record low36° (1971)
Sat, 0756° / 46°0.33Climate normal
56 °Climate normal

Tiernan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°
Average low46°
Average precipitation0.33 in
Chance of precipitation58%
Record high67° (1991)
Record low37° (2022)
Sun, 0855° / 44°0.3Climate normal
55 °Climate normal

Tiernan, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°
Average low44°
Average precipitation0.3 in
Chance of precipitation48%
Record high69° (1976)
Record low34° (2020)
Mon, 0955° / 45°0.3Climate normal
55 °Climate normal

Tiernan, Monday, 9 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.3 in
Chance of precipitation52%
Record high68° (2025)
Record low29° (2022)
Tue, 1056° / 44°0.3Climate normal
56 °Climate normal

Tiernan, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.3 in
Chance of precipitation48%
Record high66° (1996)
Record low31° (1985)
Wed, 1156° / 45°0.34Climate normal
56 °Climate normal

Tiernan, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.34 in
Chance of precipitation58%
Record high66° (2019)
Record low30° (1985)
Thu, 1256° / 45°0.27Climate normal
56 °Climate normal

Tiernan, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.27 in
Chance of precipitation57%
Record high69° (1967)
Record low29° (1985)
Fri, 1356° / 45°0.39Climate normal
56 °Climate normal

Tiernan, Friday, 13 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.39 in
Chance of precipitation60%
Record high67° (2021)
Record low29° (1978)
Sat, 1456° / 44°0.23Climate normal
56 °Climate normal

Tiernan, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.23 in
Chance of precipitation48%
Record high69° (1999)
Record low29° (1978)
Sun, 1555° / 45°0.35Climate normal
55 °Climate normal

Tiernan, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.35 in
Chance of precipitation53%
Record high64° (2025)
Record low32° (1978)
Mon, 1654° / 45°0.28Climate normal
54 °Climate normal

Tiernan, Monday, 16 November

Climate normal for this date — 60-year average.

Average high54°
Average low45°
Average precipitation0.28 in
Chance of precipitation60%
Record high66° (2008)
Record low34° (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 Tiernan, 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 Tiernan, 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.