Manteno, Illinois Climate
United States
Pop. 8,999 Elev. 213 m / 699 ft
TZ: America/Chicago (UTC-5) ·
Manteno is largely arid, with warm summers peaking at 85°F (29°C) in July and cold winters around 16°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 96°F (36°C), while wind chill can drive winter lows to 7°F (-14°C). Precipitation occurs on roughly 46 days per year (36.3 in / 922 mm total), with snow on 4 days and 35 in (896 mm) of annual accumulation. The city averages 114 sunny days per year and around 33 thunderstorm days. Ocean water temperatures reach 77°F (25°C) in summer.
| Temperature | 85°F (30°C) high | 16°F (-9°C) low |
| Feels like | 96°F (35°C) high | 7°F (-14°C) low |
| Rain | 46 days | 36.3 in (922 mm) /yr |
| Snow | 4 days | 35.3 in (896 mm) /yr |
| Sky | 114 sunny | 33 stormy |
| Wind | 2.8 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Aug, Sep
Sky & Air by Month
Cloud cover (%)
57
Jan 64
Feb 57
Mar 66
Apr 63
May 56
Jun 64
Jul 52
Aug 35
Sep 46
Oct 57
Nov 76
Dec Humidity (%)
62
Jan 64
Feb 58
Mar 60
Apr 65
May 68
Jun 75
Jul 74
Aug 65
Sep 63
Oct 67
Nov 77
Dec Weather Days by Month
Water Temperatures
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Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 37 mi Chicago Midway International Airport (MDW)
Ski resort 39 mi
National park 27 mi Gaylord Butterfly Preserve
Hospital 9 mi Saint Mary's Hospital
Hiking trail 19 mi ADT - Illinois - I - Seg 1
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F 0°C | 16°F -9°C | 0.6 in 16 mm | 7.0 in178 mm | 13 |
| February | 37°F 3°C | 22°F -6°C | 0.2 in 6 mm | 6.7 in170 mm | 7 |
| March | 59°F 15°C | 37°F 3°C | 3.8 in 97 mm | 3.4 in85 mm | 11 |
| April | 62°F 17°C | 43°F 6°C | 4.0 in 101 mm | 0.1 in3 mm | 6 |
| May | 69°F 21°C | 51°F 11°C | 4.3 in 110 mm | — | 7 |
| June | 83°F 29°C | 65°F 18°C | 6.2 in 157 mm | — | 10 |
| July | 85°F 30°C | 70°F 21°C | 6.0 in 152 mm | — | 5 |
| August | 80°F 27°C | 64°F 18°C | 2.6 in 67 mm | — | 11 |
| September | 80°F 27°C | 56°F 14°C | 1.3 in 34 mm | — | 17 |
| October | 69°F 20°C | 49°F 10°C | 4.2 in 107 mm | — | 14 |
| November | 51°F 11°C | 36°F 2°C | 1.2 in 31 mm | 10.5 in266 mm | 10 |
| December | 37°F 3°C | 21°F -6°C | 1.8 in 44 mm | 7.6 in194 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 1 |
| February | 7 | 0 |
| March | 11 | 4 |
| April | 6 | 3 |
| May | 7 | 4 |
| June | 10 | 6 |
| July | 5 | 5 |
| August | 11 | 4 |
| September | 17 | 2 |
| October | 14 | 3 |
| November | 10 | 0 |
| December | 3 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 36°F 2°C | 32°F 0°C |
| February | 33°F 1°C | 32°F 0°C |
| March | 38°F 4°C | 39°F 4°C |
| April | 47°F 8°C | 49°F 9°C |
| May | 54°F 12°C | 57°F 14°C |
| June | 71°F 22°C | 70°F 21°C |
| July | 76°F 25°C | 79°F 26°C |
| August | 77°F 25°C | 75°F 24°C |
| September | 69°F 21°C | 67°F 19°C |
| October | 66°F 19°C | 60°F 15°C |
| November | 53°F 12°C | 44°F 7°C |
| December | 43°F 6°C | 33°F 0°C |