Lake Mattoon Rainfall Forecast

Today 27 Apr
80%
Tue 28 Apr
90%
Wed 29 Apr
85%
Thu 30 Apr
5%
Fri 1 May
15%
Sat 2 May
5%
Sun 3 May
5%

Lake Mattoon Rainfall Statistics

April Rainfall

Mattoon / Charleston, Coles County Memorial Airport (13 miles)

Total Rainfall 2026
11.4in
Daily Average 2026
0.1in
Wettest Day 3 March, 2026
1.5in
Wet Days 2026
30/117 (26%)
Total Rainfall March
6.6in
Daily Average March
0.2in
Wettest Day 3 March, 2026
1.5in
Wet Days March
12/31 (39%)
Total Rainfall April
2.9in
Daily Average April
0.2in
Wettest Day 4 April, 2026
0.7in
Wet Days April
9/27 (33%)

Climate (2010–Present)

Mattoon / Charleston, Coles County Memorial Airport (13 miles)

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Annual Average 2021–2025
35.9in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 9 July, 2024
3.6in

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