Monthly outlook for Marion, ID: average high 63.4°, average low 45.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 19 October (73.5°), the coolest 15 October (35.5°).
63.4°/45.8°
Average high / low
+1.4°
Above normal
4 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
60.6°
62°
-0.8°
20 October – 29 October
68.2°
57.6°
+5.9°
30 October – 8 November
at normal
51.6°
—
October records over 66 years
90°2 October 2010All-time high
4.3°28 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Oakley (3 mi).
Sun, 1152° / 41°0.55
52 °
Marion, Sunday, 11 October
Rain. High 52°, low 41°.
Pressure29.74 inHg
Wind3.6 mph N
Humidity79%
Visibility3.7 mi
Dew point36°
Mon, 1247° / 37°0.25
47 °
Marion, Monday, 12 October
Rain. High 47°, low 37°.
Pressure30.00 inHg
Wind4.6 mph NW
Humidity91%
Visibility6.2 mi
Dew point36°
Tue, 1351° / 39°0.19
51 °
Marion, Tuesday, 13 October
Rain. High 51°, low 39°.
Pressure30.03 inHg
Wind3.7 mph NW
Humidity74%
Visibility6.2 mi
Dew point38°
Wed, 1458° / 37°0
58 °
Marion, Wednesday, 14 October
Clear. High 58°, low 37°.
Pressure30.12 inHg
Wind5.7 mph NW
Humidity42%
Visibility6.2 mi
Dew point30°
Thu, 1561° / 36°0
61 °
Marion, Thursday, 15 October
Clear. High 61°, low 36°.
Pressure30.36 inHg
Wind4.7 mph N
Humidity41%
Visibility—
Dew point30°
Fri, 1658° / 41°0
58 °
Marion, Friday, 16 October
Partly cloudy. High 58°, low 41°.
Pressure30.50 inHg
Wind6 mph NE
Humidity47%
Visibility—
Dew point30°
Sat, 1767° / 45°0
67 °
Marion, Saturday, 17 October
Mostly clear. High 67°, low 45°.
Pressure30.24 inHg
Wind7.9 mph S
Humidity20%
Visibility—
Dew point18°
Sun, 1871° / 51°0
71 °
Marion, Sunday, 18 October
Overcast. High 71°, low 51°.
Pressure30.12 inHg
Wind8.8 mph S
Humidity25%
Visibility—
Dew point27°
Mon, 1974° / 53°0
74 °
Marion, Monday, 19 October
Clear. High 74°, low 53°.
Pressure30.12 inHg
Wind13.1 mph S
Humidity23%
Visibility—
Dew point28°
Tue, 2064° / 52°0
64 °
Marion, Tuesday, 20 October
Overcast. High 64°, low 52°.
Pressure30.06 inHg
Wind12.1 mph S
Humidity22%
Visibility—
Dew point22°
Wed, 2163° / 46°0
63 °
Marion, Wednesday, 21 October
Overcast. High 63°, low 46°.
Pressure30.12 inHg
Wind7.1 mph N
Humidity36%
Visibility—
Dew point30°
Thu, 2270° / 46°0
70 °
Marion, Thursday, 22 October
Mostly clear. High 70°, low 46°.
Pressure30.30 inHg
Wind9.5 mph S
Humidity29%
Visibility—
Dew point28°
Fri, 2373° / 54°0
73 °
Marion, Friday, 23 October
Partly cloudy. High 73°, low 54°.
Pressure29.91 inHg
Wind10.8 mph S
Humidity27%
Visibility—
Dew point31°
Sat, 2472° / 55°0
72 °
Marion, Saturday, 24 October
Partly cloudy. High 72°, low 55°.
Pressure30.09 inHg
Wind8.2 mph N
Humidity26%
Visibility—
Dew point31°
Sun, 2569° / 51°0
69 °
Marion, Sunday, 25 October
Overcast. High 69°, low 51°.
Pressure30.24 inHg
Wind5.9 mph N
Humidity25%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2656° / 36°0.07
56 °
Marion, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low36°
Average precipitation0.07 in
Chance of precipitation27%
Record high75° (1999)
Record low17° (2020)
Tue, 2756° / 34°0.03
56 °
Marion, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low34°
Average precipitation0.03 in
Chance of precipitation20%
Record high74° (1990)
Record low10° (1970)
Wed, 2855° / 34°0.05
55 °
Marion, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.05 in
Chance of precipitation30%
Record high73° (1990)
Record low4° (1970)
Thu, 2953° / 34°0.06
53 °
Marion, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low34°
Average precipitation0.06 in
Chance of precipitation33%
Record high73° (1962)
Record low11° (1971)
Fri, 3052° / 33°0.06
52 °
Marion, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (1962)
Record low10° (2019)
Sat, 3152° / 33°0.03
52 °
Marion, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2012)
Record low15° (1991)
Sun, 0152° / 33°0.04
52 °
Marion, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high73° (1965)
Record low13° (1971)
Mon, 0252° / 32°0.05
52 °
Marion, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low32°
Average precipitation0.05 in
Chance of precipitation23%
Record high70° (1965)
Record low13° (1971)
Tue, 0352° / 31°0.05
52 °
Marion, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low31°
Average precipitation0.05 in
Chance of precipitation17%
Record high71° (2020)
Record low-5° (1991)
Wed, 0452° / 32°0.04
52 °
Marion, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low32°
Average precipitation0.04 in
Chance of precipitation28%
Record high70° (1980)
Record low19° (1971)
Thu, 0553° / 33°0.06
53 °
Marion, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.06 in
Chance of precipitation30%
Record high73° (1980)
Record low17° (2015)
Fri, 0652° / 33°0.05
52 °
Marion, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high71° (1999)
Record low6° (1971)
Sat, 0751° / 32°0.06
51 °
Marion, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.06 in
Chance of precipitation33%
Record high72° (2006)
Record low12° (1971)
Sun, 0849° / 31°0.07
49 °
Marion, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.07 in
Chance of precipitation40%
Record high66° (2016)
Record low11° (1994)
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 Marion, ID 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 Marion, ID 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.