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Ossian, IN

63°F
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Ossian

Indiana

63°
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Ossian, IN Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

September

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
30
82°
64°
31
87°
68°
1
90°
73°
2
92°
71°
3
93°
72°
4
88°
70°
5
83°
68°
6
77°
60°
7
Mostly sunny and pleasant
79°
57°
8
Partly sunny, warm and humid
86°
67°
9
Humid with a thunderstorm
81°
66°
10
Periods of sun; less humid
79°
51°
11
Beautiful with some sun
76°
57°
12
An afternoon t-storm or two
82°
62°
13
Warm with clouds and sun
83°
60°
14
A t-storm around in the p.m.
78°
59°
15
Showers around in the morning
77°
56°
16
Clouds yielding to sun
76°
57°
17
Cloudy with afternoon rain
75°
57°
18
Mostly sunny
76°
55°
19
Mostly cloudy, a little rain
77°
57°
20
Humid with a touch of rain
78°
59°
21
Cloudy and less humid
76°
57°
22
Rather cloudy
69°
56°
23
Cloudy to partly sunny
71°
56°
24
Rather cloudy and warm
77°
55°
25
Cloudy and warm
79°
57°
26
Partly sunny and warm
78°
56°
27
Partly sunny and warm
77°
56°
28
Sunshine and warm
78°
57°
29
Mostly cloudy and warm
78°
58°
30
Mostly sunny and warm
77°
57°
1
Mostly sunny and warm
78°
54°
2
A couple of showers
76°
48°
3
Sunny and cooler
63°
43°

Temperature Graph

°F
100° 88° 76° 64° 52° Sep
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in Ossian

Ossian's September 2026 forecast shows daily high temperatures ranging from 63° to 86°, with overnight lows between 43° and 67°. The average high for September is 77° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Ossian. See also: October | November | December.

Further Ahead

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December 2026

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World North America United States Indiana Ossian

Weather Near Ossian:

  • Fort Wayne, IN
  • Huntington, IN
  • New Haven, IN
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