As of 03:59 PDT

Weather in Tiernan, OR

53°Current weather

Tiernan, Saturday, 17 October, 03:59

Overcast. Feels like 53°. High 68°, low 48°.

Pressure30.18 inHg
Wind1.8 mph SE
Humidity99%
Visibility0.2 mi
Dew point53°

Monthly outlook for Tiernan, OR: average high 60.6°, average low 42.4°. That is 0.1° below the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 7 days and 3.6 inches. The warmest day looks like 21 October (70.4°), the coolest 24 October (36.6°).

60.6°/42.4°
Average high / low
−0.1°
Below normal
3 / 7
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October63.2°62°+0.7°
27 October – 5 November56.4°58.5°-1.2°
6 November – 15 Novemberat normal55.8°—

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).

Sun, 1867° / 37°0Clear
67 °Clear

Tiernan, Sunday, 18 October

Clear. High 67°, low 37°.

Pressure30.06 inHg
Wind2.3 mph N
Humidity43%
Visibility6.2 mi
Dew point38°
Mon, 1960° / 45°0.01Light rain
60 °Light rain

Tiernan, Monday, 19 October

Light rain. High 60°, low 45°.

Pressure29.94 inHg
Wind1 mph S
Humidity60%
Visibility6.2 mi
Dew point42°
Tue, 2068° / 43°0Mostly clear
68 °Mostly clear

Tiernan, Tuesday, 20 October

Mostly clear. High 68°, low 43°.

Pressure29.94 inHg
Wind2.3 mph NE
Humidity50%
Visibility6.2 mi
Dew point43°
Wed, 2170° / 44°0Clear
70 °Clear

Tiernan, Wednesday, 21 October

Clear. High 70°, low 44°.

Pressure29.94 inHg
Wind5.1 mph NE
Humidity44%
Visibility—
Dew point44°
Thu, 2264° / 43°0Clear
64 °Clear

Tiernan, Thursday, 22 October

Clear. High 64°, low 43°.

Pressure30.03 inHg
Wind7.7 mph N
Humidity49%
Visibility—
Dew point41°
Fri, 2358° / 40°0Partly cloudy
58 °Partly cloudy

Tiernan, Friday, 23 October

Partly cloudy. High 58°, low 40°.

Pressure30.27 inHg
Wind7.6 mph NW
Humidity56%
Visibility—
Dew point37°
Sat, 2462° / 37°0.09Light rain
62 °Light rain

Tiernan, Saturday, 24 October

Light rain. High 62°, low 37°.

Pressure30.15 inHg
Wind5.7 mph E
Humidity43%
Visibility—
Dew point29°
Sun, 2559° / 46°0.06Light rain
59 °Light rain

Tiernan, Sunday, 25 October

Light rain. High 59°, low 46°.

Pressure30.21 inHg
Wind5.9 mph W
Humidity81%
Visibility—
Dew point48°
Mon, 2656° / 43°0.02Light rain
56 °Light rain

Tiernan, Monday, 26 October

Light rain. High 56°, low 43°.

Pressure30.09 inHg
Wind4.1 mph E
Humidity54%
Visibility—
Dew point38°
Tue, 2757° / 41°0Clear
57 °Clear

Tiernan, Tuesday, 27 October

Clear. High 57°, low 41°.

Pressure30.09 inHg
Wind5.8 mph NW
Humidity71%
Visibility—
Dew point43°
Wed, 2850° / 43°1.06Rain
50 °Rain

Tiernan, Wednesday, 28 October

Rain. High 50°, low 43°.

Pressure29.85 inHg
Wind13.5 mph SW
Humidity97%
Visibility—
Dew point45°
Thu, 2956° / 40°0.02Light rain
56 °Light rain

Tiernan, Thursday, 29 October

Light rain. High 56°, low 40°.

Pressure30.12 inHg
Wind6 mph W
Humidity78%
Visibility—
Dew point44°
Fri, 3050° / 40°0Overcast
50 °Overcast

Tiernan, Friday, 30 October

Overcast. High 50°, low 40°.

Pressure30.15 inHg
Wind3.8 mph SE
Humidity85%
Visibility—
Dew point42°
Sat, 3164° / 41°0Partly cloudy
64 °Partly cloudy

Tiernan, Saturday, 31 October

Partly cloudy. High 64°, low 41°.

Pressure30.18 inHg
Wind5 mph E
Humidity52%
Visibility—
Dew point37°
Sun, 0161° / 47°0Overcast
61 °Overcast

Tiernan, Sunday, 1 November

Overcast. High 61°, low 47°.

Pressure30.15 inHg
Wind3.9 mph W
Humidity47%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0259° / 46°0.26Climate normal
59 °Climate normal

Tiernan, Monday, 2 November

Climate normal for this date — 60-year average.

Average high59°
Average low46°
Average precipitation0.26 in
Chance of precipitation42%
Record high70° (1976)
Record low37° (2002)
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)

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.