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Fair on the Square Half Marathon

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Danville, IN, USA · September 12, 2026
rain71°·72° high·Light·Light rain
3
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Fair on the Square Half Marathon race day weather

rain
71°at start
82° high
Light
Heavy rain
Your goal
0:00:00

Warm, wet race ahead

Runners will face a warm and humid race, starting at 71°F and peaking at 78°F. With a consistent 7 mph headwind in Mile 6 and tailwinds in Miles 10-11 and 13-14, pacing adjustments are crucial. The moderate rain will lead to slippery conditions, so runners should prioritize grip and consider wearing water-resistant gear. Hydration will be vital, especially with humidity at 93%.

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cloudy4
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Pace Calculator

13.1mi
0:00:00
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Fair on the Square Half Marathon route and elevation

The Fair on the Square Half Marathon course has about 358 ft (109 m) of climbing and 354 ft (108 m) of descent, and finishes near the elevation it starts. It is hillier than 76% of the half marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 1, with 84 ft (26 m) of climbing and a 1.2% average grade.

Biggest climbs

  • Miles 0.3 to 1.3: climbs about 70 ft (22 m).
  • Miles 5.8 to 7.5: climbs about 60 ft (18 m).
  • Miles 8.3 to 11.1: climbs about 100 ft (30 m).

What the hills cost

  • 1:45 on a flat course is about 1:45:50 here (50 seconds slower).
  • 2:00 on a flat course is about 2:01 here (1 minute slower).
  • 2:15 on a flat course is about 2:16 here (1 minute slower).

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 1:45, 2:00 or 2:15 finish
The Fair on the Square Half Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent1:452:002:15
184 ft19 ft8:299:4210:54
213 ft35 ft7:528:5910:07
331 ft39 ft7:549:0210:10
46 ft8 ft7:579:0510:13
511 ft52 ft7:478:5310:00
618 ft43 ft7:508:5810:05
727 ft4 ft8:089:1710:27
833 ft38 ft7:559:0410:11
947 ft21 ft8:109:1910:30
1042 ft0 ft8:189:2910:40
1122 ft14 ft8:009:0910:18
123 ft64 ft7:438:509:55
1342 ft20 ft8:079:1610:26
Last 0.10 ft18 ft0:500:571:04

Explore the Fair on the Square Half Marathon course with the weather and your pace along the route, or compare it with other races.

About the Fair on the Square Half Marathon

The Fair on the Square Half Marathon and 5K start and finish on the Courthouse Square in downtown Danville, Indiana, with chip timing and water stations every 2 miles on the half marathon course. The race kicks off the annual Fair on the Square festival, which draws more than 100 local arts, crafts, and food vendor booths to the streets around the Hendricks County Courthouse. The half marathon starts at 8:00 AM and the 5K follows at 8:15 AM. Source

Race weekend

Saturday, September 12
8:00 AMHalf Marathon (13.1 mi)
8:15 AM5K (3.1 mi)

Fair on the Square Half Marathon FAQ

When is the 2026 Fair on the Square Half Marathon?

The 2026 Fair on the Square Half Marathon will be held on Saturday September 12, 2026.

What will the weather be like for the 2026 Fair on the Square Half Marathon?

The forecast calls for a high of 84°F and a low of 71°F with a 100% chance of rain.

What is the elevation gain of the Fair on the Square Half Marathon?

The Fair on the Square Half Marathon course has about 358 ft (109 m) of climbing and 354 ft (108 m) of descent, and finishes near the elevation it starts. It is hillier than 76% of the half marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Fair on the Square Half Marathon hilly?

Moderately. It has about 27 ft (8 m) of climbing per mile. The hardest mile is mile 1, with 84 ft (26 m) of climbing and a 1.2% average grade. 2:00 on a flat course is about 2:01 here (1 minute slower).

What is the weather usually like for the Fair on the Square Half Marathon?

Over the 4 years racecast.io has race-day weather for (2023 to 2026), it averaged 60°F at the start and 64°F by a typical finish. Rain fell during race hours in 2 of those years (2023 and 2026).

What was the hottest Fair on the Square Half Marathon?

Of the 4 years on record, 2026 was the warmest, reaching 72°F during race hours. The coldest start was 2024, at 52°F.

What was the windiest Fair on the Square Half Marathon?

Of the 4 years on record, 2024 was the windiest, with wind averaging 9 mph during race hours. The calmest was 2025, at 3 mph.

Fair on the Square Half Marathon weather history

Based on 4 years of data
Avg Temp
62°F
L:60° H:64°
RunScore
6
Conditions
Rain Freq
50%
2 of 4 yrs
Wind6mph
Dew56°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
rain
71°/72°Light
3
2025
partly-cloudy-day
54°/61°-
8
2024
clear-day
52°/57°-
9
2023
rain
63°/66°Light
5