Marion weather in October

In October, Marion sees average daytime highs of 64°F and overnight lows near 45°F, with 3.1 in of precipitation across 9.3 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 70°F in the first days to 58°F by the end. The sky is clear or mostly clear about 35% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 18 min by month's end. Set against the rest of the year, October is Marion's 4th-clearest and 7th-windiest month. For the whole year in context, see Marion's year-round climate.

Daytime high
64°
6th warmest
Overnight low
45°
7th coldest
Precipitation
3.1 in
9.3 wet days
Daylight
10 h 54 min
7:01 AM – 5:55 PM
Cloud cover
57%
4th clearest
Wind
9 mph
7th windiest
Solar energy
3.16 kWh/m²
Travel score
5.7
out of 10

Marion is city in and the county seat of Grant County, Indiana, United States.

Density
715/km²
people per km²
Founded
1831

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 70°F in the first days to 58°F by the end.

A typical October day in Marion reaches about 64°F in the afternoon and slips back to 45°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 76°F. Set against its neighbours, October runs about 12°F cooler than September and about 14°F warmer than November.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
17050
27050
37050
46949
56949
66849
76848
86848
96747
106747
116647
126646
136546
146546
156445
166445
176345
186344
196244
206244
216143
226143
236043
246042
255942
265942
275841
285841
295841
305740
315740

How October really feels in Marion

Once humidity and wind are folded in, October averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Marion weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan34° / 20°2.99.75.29.40.0
Feb38° / 23°2.48.54.610.40.0
Mar49° / 31°3.510.62.811.72.0
Apr62° / 42°4.312.30.5134.8
May71° / 53°4.413.7014.26.0
Jun80° / 63°4.212.2014.86.2
Jul83° / 66°3.411.2014.65.9
Aug81° / 64°3.39.7013.66.6
Sep76° / 56°2.68.5012.37.1
Oct64° / 45°3.19.30.110.95.7
Nov50° / 35°3.391.49.72.3
Dec39° / 26°2.89.83.89.20.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65446
75347
85446
95347
105248
115347
125347
135248
145248
155248
165149
175050
184951
194951
204951
214654
224555
234555
244555
254456
264456
274357
284258
294258
304159
314258

Chance of precipitation in October

Any precipitation

Marion gets around 3.1 in of rain and snow over 9.3 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 31% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
329
428
528
628
728
828
928
1029
1129
1229
1329
1429
1529
1629
1730
1830
1930
2030
2131
2231
2331
2431
2531
2631
2731
2830
2930
3030
3130

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1741394
2751384
3761284
4761284
5771274
6781273
7801163
8801163
9801163
10821152
11831052
12841042
1386941
1487931
1587931
1688831
1789830
1890820
1990820
2091720
2191720
2291720
2391720
2492620
2592620
2692620
2792620
2893610
2993610
3093610
3193610

Wind in October

Winds average 9 mph in October.

Across October, daily wind ranges from about 8 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 6:44 AM to 7:18 AM, and sunset from 6:19 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:446:19
211.56:456:17
311.56:466:15
411.46:486:14
511.46:496:12
611.36:506:11
711.36:516:09
811.36:526:07
911.26:536:06
1011.26:546:04
1111.16:556:02
1211.16:566:01
1311.06:575:59
1411.06:585:58
1510.96:595:56
1610.97:015:55
1710.97:025:53
1810.87:035:52
1910.87:045:50
2010.77:055:49
2110.77:065:47
2210.67:075:46
2310.67:095:45
2410.67:105:43
2510.57:115:42
2610.57:125:41
2710.47:135:39
2810.47:145:38
2910.47:165:37
3010.37:175:36
3110.37:185:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.16 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 6.3 kWh/m² in July across the year — October's 3.16 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.8Moderate
252.8Moderate
262.7Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in October

Is October a good time to visit Marion?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.7
Sightseeing
6th-best month of the year
1.9
Beach & pool
6th-best month of the year

October is a reasonable time to visit Marion for sightseeing.

What to pack for Marion in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Marion sees daytime highs around 64°F and nights near 45°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Marion in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Marion peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 19UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Marion in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Marion is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1416 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar12Moderate
Apr12Moderate
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Marion?

Marion sits at 40.6°N, 85.7°W, 810 ft above sea level, in United States. The nearest listed city is Huntington, 24 mi away.

Topography around Marion

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Marion.

Within 2 miles, the terrain around Marion has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 840 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 266 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 728 ft.

The land around Marion is covered by trees (38%), grassland (28%) and artificial surfaces (25%) within 2 miles, cropland (67%) within 10 miles, and cropland (75%) within 50 miles.

2 miles
167 ft
10 miles
266 ft
50 miles
728 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Huntington 24 mi · Kokomo 25 mi · Muncie 29 mi · Anderson 31 mi · Logansport 39 mi · Noblesville 40 mi · Westfield 43 mi · Fishers 45 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Marion (40.5584°, -85.6591°, elevation 810 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).