Old Mill State Park Weather Forecast
- 55
- 77
Mostly Sunny
- 65
- 82
Chance Thunderstorms
- 61
- 89
Rain Showers
- 56
- 77
Chance Thunderstorms
- 57
- 74
Chance Rain Showers
- 57
- 83
Partly Sunny
Today 8 Jul West Marshall
Sunny. Highs in the mid 70s. Northwest Winds 5 to 15 Mph.
Tonight 8 Jul West Marshall
Mostly clear. Lows in the mid 50s. West Winds around 5 Mph shifting to the south after midnight.
Old Mill State Park Temperature Statistics
July Temperature
Thief River Falls, Thief River Falls Regional Airport (26.7 miles)
Lowest 6 July, 2025
54 °FAverage July
72.4 °FHighest 3 July, 2025
87.1 °F
Climate (2020–Present)
Thief River Falls, Thief River Falls Regional Airport (26.7 miles)
Average Low 2020–2025
32 °FAverage 2020–2025
41.2 °FAverage High 2020–2025
50.1 °F