Marcum Weather Forecast
- 63
- 88
Sunny
- 61
- 86
Sunny
- 67
- 86
Partly Sunny
- 69
- 87
Mostly Sunny
- 60
- 89
Chance Thunderstorms
- 59
- 81
Mostly Sunny
Today 14 Oct Collin
Sunny. Highs in the upper 80s. East Winds 5 to 10 Mph.
Tonight 14 Oct Collin
Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.
Marcum Temperature Statistics
October Temperature
McKinney - McKinney National Airport (10.6 miles)
Lowest 11 October, 2025
57.9 °FAverage October
75.3 °FHighest 6 October, 2025
91 °F
Climate (2020–Present)
McKinney - McKinney National Airport (10.6 miles)
Average Low 2020–2025
55.8 °FAverage 2020–2025
66.5 °FAverage High 2020–2025
77.4 °F