Monthly outlook for Marion, ID: average high 63.3°, average low 45.6°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 9 October (82.1°), the coolest 12 October (33.8°).
63.3°/45.6°
Average high / low
+1.1°
Above normal
4 / 3
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
61.3°
62.2°
-0.5°
19 October – 28 October
66.7°
58.5°
+4.6°
29 October – 7 November
at normal
52.1°
—
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).
Sat, 1066° / 45°0.15
66 °
Marion, Saturday, 10 October
Light rain. High 66°, low 45°.
Pressure29.56 inHg
Wind4.5 mph N
Humidity33%
Visibility6.2 mi
Dew point38°
Sun, 1148° / 39°0.82
48 °
Marion, Sunday, 11 October
Rain. High 48°, low 39°.
Pressure29.77 inHg
Wind3.4 mph NE
Humidity83%
Visibility3.2 mi
Dew point37°
Mon, 1242° / 34°0.58
42 °
Marion, Monday, 12 October
Snow. High 42°, low 34°.
Pressure30.06 inHg
Wind1.1 mph NE
Humidity100%
Visibility0.3 mi
Dew point34°
Tue, 1346° / 36°0.2
46 °
Marion, Tuesday, 13 October
Light rain. High 46°, low 36°.
Pressure30.06 inHg
Wind4.2 mph S
Humidity88%
Visibility—
Dew point36°
Wed, 1458° / 36°0
58 °
Marion, Wednesday, 14 October
Clear. High 58°, low 36°.
Pressure30.15 inHg
Wind10.2 mph W
Humidity41%
Visibility—
Dew point28°
Thu, 1561° / 42°0
61 °
Marion, Thursday, 15 October
Clear. High 61°, low 42°.
Pressure30.24 inHg
Wind6.1 mph NW
Humidity40%
Visibility—
Dew point31°
Fri, 1665° / 48°0
65 °
Marion, Friday, 16 October
Overcast. High 65°, low 48°.
Pressure30.39 inHg
Wind4.4 mph SW
Humidity28%
Visibility—
Dew point25°
Sat, 1772° / 50°0
72 °
Marion, Saturday, 17 October
Mostly clear. High 72°, low 50°.
Pressure30.18 inHg
Wind10 mph S
Humidity17%
Visibility—
Dew point18°
Sun, 1872° / 53°0
72 °
Marion, Sunday, 18 October
Overcast. High 72°, low 53°.
Pressure30.00 inHg
Wind9.3 mph S
Humidity20%
Visibility—
Dew point24°
Mon, 1971° / 55°0
71 °
Marion, Monday, 19 October
Overcast. High 71°, low 55°.
Pressure29.85 inHg
Wind11.1 mph S
Humidity25%
Visibility—
Dew point29°
Tue, 2058° / 47°0
58 °
Marion, Tuesday, 20 October
Clear. High 58°, low 47°.
Pressure30.18 inHg
Wind7.8 mph NW
Humidity37%
Visibility—
Dew point28°
Wed, 2165° / 46°0
65 °
Marion, Wednesday, 21 October
Partly cloudy. High 65°, low 46°.
Pressure30.21 inHg
Wind5.6 mph SW
Humidity24%
Visibility—
Dew point21°
Thu, 2264° / 46°0
64 °
Marion, Thursday, 22 October
Clear. High 64°, low 46°.
Pressure30.24 inHg
Wind6 mph NE
Humidity23%
Visibility—
Dew point20°
Fri, 2370° / 49°0
70 °
Marion, Friday, 23 October
Clear. High 70°, low 49°.
Pressure30.12 inHg
Wind8.9 mph S
Humidity19%
Visibility—
Dew point19°
Sat, 2473° / 52°0
73 °
Marion, Saturday, 24 October
Clear. High 73°, low 52°.
Pressure30.06 inHg
Wind10.8 mph S
Humidity24%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2558° / 36°0.06
58 °
Marion, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high58°
Average low36°
Average precipitation0.06 in
Chance of precipitation23%
Record high76° (1977)
Record low19° (1961)
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)
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.