Monthly outlook for Marion, ID: average high 59.8°, average low 42.9°. That is 0.1° below the climate normal for October. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 18 October (70.2°), the coolest 14 October (32.9°).
59.8°/42.9°
Average high / low
−0.1°
Below normal
5 / 3
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
58.3°
61.5°
-1.8°
22 October – 31 October
62.3°
55.8°
+3.6°
1 November – 10 November
at normal
50.9°
—
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).
Tue, 1348° / 34°0.2
48 °
Marion, Tuesday, 13 October
Light rain. High 48°, low 34°.
Pressure30.15 inHg
Wind2.9 mph NW
Humidity86%
Visibility6.2 mi
Dew point36°
Wed, 1457° / 33°0
57 °
Marion, Wednesday, 14 October
Clear. High 57°, low 33°.
Pressure30.15 inHg
Wind5.2 mph NW
Humidity43%
Visibility6.2 mi
Dew point30°
Thu, 1560° / 37°0
60 °
Marion, Thursday, 15 October
Clear. High 60°, low 37°.
Pressure30.45 inHg
Wind2.2 mph N
Humidity47%
Visibility6.2 mi
Dew point35°
Fri, 1662° / 35°0
62 °
Marion, Friday, 16 October
Clear. High 62°, low 35°.
Pressure30.39 inHg
Wind6 mph NE
Humidity40%
Visibility—
Dew point30°
Sat, 1769° / 41°0
69 °
Marion, Saturday, 17 October
Clear. High 69°, low 41°.
Pressure30.06 inHg
Wind9.1 mph S
Humidity39%
Visibility—
Dew point36°
Sun, 1870° / 54°0
70 °
Marion, Sunday, 18 October
Overcast. High 70°, low 54°.
Pressure29.94 inHg
Wind10.8 mph S
Humidity27%
Visibility—
Dew point30°
Mon, 1969° / 53°0
69 °
Marion, Monday, 19 October
Partly cloudy. High 69°, low 53°.
Pressure29.83 inHg
Wind17.5 mph S
Humidity28%
Visibility—
Dew point31°
Tue, 2053° / 39°0.46
53 °
Marion, Tuesday, 20 October
Snow. High 53°, low 39°.
Pressure29.88 inHg
Wind16.5 mph W
Humidity96%
Visibility—
Dew point39°
Wed, 2150° / 39°0
50 °
Marion, Wednesday, 21 October
Overcast. High 50°, low 39°.
Pressure30.03 inHg
Wind8.5 mph N
Humidity65%
Visibility—
Dew point33°
Thu, 2257° / 40°0
57 °
Marion, Thursday, 22 October
Clear. High 57°, low 40°.
Pressure30.12 inHg
Wind5.3 mph N
Humidity51%
Visibility—
Dew point32°
Fri, 2363° / 47°0.2
63 °
Marion, Friday, 23 October
Light rain. High 63°, low 47°.
Pressure30.03 inHg
Wind10 mph S
Humidity51%
Visibility—
Dew point39°
Sat, 2459° / 50°0.29
59 °
Marion, Saturday, 24 October
Rain. High 59°, low 50°.
Pressure30.15 inHg
Wind11.2 mph NW
Humidity45%
Visibility—
Dew point34°
Sun, 2562° / 46°0
62 °
Marion, Sunday, 25 October
Clear. High 62°, low 46°.
Pressure30.24 inHg
Wind6 mph NE
Humidity47%
Visibility—
Dew point36°
Mon, 2665° / 48°0
65 °
Marion, Monday, 26 October
Clear. High 65°, low 48°.
Pressure30.09 inHg
Wind8.8 mph S
Humidity36%
Visibility—
Dew point32°
Tue, 2768° / 51°0
68 °
Marion, Tuesday, 27 October
Partly cloudy. High 68°, low 51°.
Pressure29.91 inHg
Wind10.3 mph S
Humidity37%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0949° / 30°0.08
49 °
Marion, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.08 in
Chance of precipitation40%
Record high68° (2014)
Record low7° (2000)
Tue, 1048° / 30°0.05
48 °
Marion, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation32%
Record high65° (2016)
Record low1° (2000)
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.