Grantsburg Weather Forecast
- 48
- 71
Becoming Sunny
- 52
- 73
Mostly Sunny
- 57
- 78
Partly Sunny
- 61
- 75
Chance Rain Showers
- 61
- 77
Rain Showers Likely
- 66
- 84
Partly Sunny
Today 9 May Johnson
Sunny. Highs around 70. Northeast Winds 5 to 10 Mph.
Tonight 9 May Johnson
Mostly clear. Lows in the upper 40s. Northeast Winds around 5 Mph.
Grantsburg Temperature Statistics
May Temperature
Metropolis Municipal Airport (14.3 miles)
Lowest 6 May, 2025
43.3 °FAverage May
59.2 °FHighest 1 May, 2025
75.9 °F
Climate (2020–Present)
Metropolis Municipal Airport (14.3 miles)
Average Low 2020–2025
48.9 °FAverage 2020–2025
59.1 °FAverage High 2020–2025
69.5 °F