First Call Half Marathon

Waukesha, WI, USA · March 21, 2027
partly-cloudy-day36°·44° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
36°at start
44° high
Breezy
Dry

Cool temps, shifting winds ahead

Runners will face a temperature increase from 34°F at the start to 44°F by the finish, with average humidity at 61%. Wind will be a factor, with a tailwind in the early miles and shifting to headwinds in the latter half, particularly tough from miles 3 to 9. Runners should consider adjusting their pace during headwind sections and ensure adequate hydration as temperatures rise.

Race day forecast available in 190 days
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Distance: 13.1mi
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Race Info

The First Call Half Marathon starts and finishes at the E.B. Shurts Building in Waukesha's Fox River Sanctuary, running out-and-back along the Glacial Drumlin State Trail with a return leg on the Fox River Trail. First Call closes out Silver Circle Sports Events' Chilly Willy Winter Run Series each March, paired with a companion Last Call race the previous December. Results are on file back to at least 2018, alongside 5K and 10K options and a walker/ruck division.

FAQ

When is the 2027 First Call Half Marathon?

The 2027 First Call Half Marathon will be held on Sunday March 21, 2027.

Is the First Call Half Marathon a Boston Marathon Qualifier?

No, the First Call Half Marathon is NOT a Boston Marathon qualifier.

What will the weather be like for the 2027 First Call Half Marathon?

The forecast calls for a high of 44°F and a low of 32°F with a 10% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
36°F
L:34° H:37°
RunScore
4
Conditions
Rain Freq
0%
0 of 2 yrs
Wind18mph
Dew28°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
34°/37°-
3
2024
cloudy
34°/37°-
5