0in

Rain Today

Rain Last Hour
0in

Recorded at Mattoon / Charleston, Coles County Memorial Airport Updated 20 mins ago (8 miles away)

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Real-Time Extremes

Hottest 89.5 °F
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Coldest -36.5 °F
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Windiest 49.4mph
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Wettest (Last Hour) 0.6in
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Most Humid 100%
Metter Municipal Airport, GA
Least Humid 18%
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Highest Pressure 1038.6 hPa
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Lowest Pressure 976 hPa
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Johnstown Rainfall Forecast

Today 6 Dec
No Rain
Sun 7 Dec
20%
Mon 8 Dec
5%
Tue 9 Dec
No Rain
Wed 10 Dec
20%
Thu 11 Dec
30%
Fri 12 Dec
10%

Johnstown Rainfall Statistics

December Rainfall

Mattoon / Charleston, Coles County Memorial Airport (7.5 miles)

Total Rainfall 2025
29.9in
Daily Average 2025
0.1in
Wettest Day 4 April, 2025
2.9in
Wet Days 2025
93/340 (27%)
Total Rainfall November
2in
Daily Average November
0.1in
Wettest Day 18 November, 2025
0.8in
Wet Days November
8/30 (27%)
Total Rainfall December
0.2in
Daily Average December
0.05in
Wettest Day 1 December, 2025
0.2in
Wet Days December
1/6 (17%)

Climate (2010–Present)

Mattoon / Charleston, Coles County Memorial Airport (7.5 miles)

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Annual Average 2020–2024
36.6in
Monthly Average 2020–2025
3in
Daily Average 2020–2025
0.1in
Wettest Day 9 July, 2024
3.6in

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