Ontario Rainfall Forecast

Today 4 Sep
20%
Fri 5 Sep
80%
Sat 6 Sep
5%
Sun 7 Sep
No Rain
Mon 8 Sep
5%
Tue 9 Sep
15%
Wed 10 Sep
10%

Ontario Rainfall Statistics

September Rainfall

Sparta, Sparta / Fort McCoy Airport (17.4 miles)

Total Rainfall 2025
24.4in
Daily Average 2025
0.1in
Wettest Day 3 June, 2025
2.1in
Wet Days 2025
63/247 (26%)
Total Rainfall August
2.9in
Daily Average August
0.1in
Wettest Day 29 August, 2025
1in
Wet Days August
8/31 (26%)
Total Rainfall September
–
Daily Average September
–
Wettest Day 4 September, 2025
–
Wet Days September
–

Climate (2010–Present)

Sparta, Sparta / Fort McCoy Airport (17.4 miles)

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Annual Average 2020–2024
27.7in
Monthly Average 2020–2025
2.4in
Daily Average 2020–2025
0.1in
Wettest Day 19 May, 2022
2.9in

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