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St. Croix County, WI

Tuesday : a low of 53.9°F averaged over St. Croix County, WI, the warmest 29 September night in the county average since 2023, 6th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
70.9°F
Warmest since 2025
16th warmest of 76
Low
53.9°F
Warmest since 2023
6th warmest of 76

No measurable precipitation in the county average of St. Croix County, WI for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in St. Croix County, WI since 1951: 53.9°F in 2026; the lowest is 26.8°F, in 1967.
2023: 58.3°F1967: 26.8°F2026: 53.9°F 2026 53.9°F 1967 26.8°F since 2023 1951 2026
  • Normal range, 34.2 to 52.5°F
Every year as a table

Every 29 September high of the county average in St. Croix County, WI since 1951: 70.9°F in 2026; the highest is 84.3°F, in 2024.

YearHigh, °FLow, °F
202670.953.9
202575.145.3
202484.351.1
202368.458.3
202259.232.7
202176.650.6
202055.948
201960.745.2
201852.832.5
201770.745.1
201661.246.1
201571.647.2
201479.852.5
201367.743.7
201273.337.4
20117655
201062.347.5
200956.442.4
200860.752.4
200767.342.5
200653.239.1
200558.535.5
200464.336.1
20035131.4
200255.943.4
200165.639.2
200074.843.6
199964.337.5
199874.747.8
199769.154
199662.539.1
199577.252.5
19946239.8
199349.635.6
199254.530.7
199163.434.4
199063.242.4
198976.242.8
198853.848.2
198768.453.5
198668.950.3
198544.838.4
198449.729.4
198380.558.7
198270.354.2
198158.533.1
198059.846.4
197966.853.2
197863.339.6
19777041.7
197661.533.1
197566.948.6
197455.534.3
197364.447.4
197259.236.2
197173.244.3
197063.637.6
196966.544.4
196862.539.1
196756.226.8
196659.944
196552.244.9
196460.436.2
196361.337.2
196263.434.6
196151.433.8
196054.735.6
195956.541.9
195868.547.2
195768.640.9
195669.741.7
195568.747.1
195464.349.3
195373.847.1
195276.841.8
195152.133.5

The month

September 2026 so far averaged 63.4°F in St. Croix County, WI, the warmest 1 to 29 September in the county average since 2025, 11th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 68.8°F in St. Croix County, WI, the warmest August in the county average since 2023, 53rd warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a high of 70.9°F averaged over St. Croix County, WI, the warmest 29 September in the county average since 2025, 16th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Minneapolis-St Paul, MN 39.6 mi, the nearest city with its own station