Old Mill State Park Weather Forecast
- 59
- 77
Slight Chance Rain Showers
- 65
- 83
Chance Thunderstorms
- 64
- 84
Chance Thunderstorms
- 62
- 82
Rain Showers Likely
- 55
- 79
Partly Sunny
- 51
- 74
Partly Sunny
Today 24 Jul West Marshall
Mostly sunny. Areas of smoke late this morning. A slight chance of Showers this afternoon. Highs 75 to 80. Light and variable Winds becoming west around 5 Mph this afternoon. Chance of rain 20 percent.
Tonight 24 Jul West Marshall
Mostly clear. Lows 55 to 60. South Winds up to 10 Mph.
Old Mill State Park Temperature Statistics
July Temperature
Thief River Falls, Thief River Falls Regional Airport (26.7 miles)
Lowest 17 July, 2025
46.9 °FAverage July
68 °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 °F