Lewistown, Illinois Climate
United States
Pop. 2,261 Elev. 180 m / 591 ft
TZ: America/Chicago (UTC-5) ·
Lewistown has a dry climate with warm summers reaching 89°F (32°C) in July and cold winters averaging 18°F (-8°C) in January. Humidity pushes the summer feels-like temperature to 103°F (39°C), while wind chill can drive winter lows to 10°F (-12°C). Rain falls on about 46 days per year (27.1 in / 689 mm total), with snow on 4 days and 29 in (729 mm) of annual accumulation. The city averages 126 sunny days per year and around 30 thunderstorm days.
| Temperature | 89°F (32°C) high | 18°F (-8°C) low |
| Feels like | 103°F (40°C) high | 10°F (-12°C) low |
| Rain | 46 days | 27.1 in (689 mm) /yr |
| Snow | 4 days | 28.7 in (729 mm) /yr |
| Sky | 126 sunny | 30 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
49
Jan 59
Feb 50
Mar 68
Apr 55
May 52
Jun 67
Jul 50
Aug 40
Sep 44
Oct 51
Nov 68
Dec Humidity (%)
63
Jan 64
Feb 58
Mar 62
Apr 58
May 65
Jun 71
Jul 70
Aug 57
Sep 58
Oct 65
Nov 77
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 31 mi General Wayne A. Downing Peoria International Airport (PIA)
Ski resort 131 mi Hidden Valley
National park 189 mi Pikes Peak State Park
Hospital 8 mi Mason District Hospital
Hiking trail 40 mi Kickapoo Creek Rec Area
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 33°F 1°C | 18°F -8°C | 0.3 in 8 mm | 5.3 in133 mm | 13 |
| February | 38°F 4°C | 22°F -5°C | 0.1 in 4 mm | 3.9 in100 mm | 8 |
| March | 61°F 16°C | 38°F 3°C | 3.5 in 88 mm | 3.8 in97 mm | 13 |
| April | 66°F 19°C | 46°F 8°C | 4.7 in 120 mm | — | 5 |
| May | 74°F 24°C | 54°F 12°C | 3.0 in 77 mm | — | 10 |
| June | 87°F 30°C | 67°F 19°C | 2.4 in 61 mm | — | 10 |
| July | 89°F 32°C | 72°F 22°C | 6.0 in 152 mm | — | 7 |
| August | 84°F 29°C | 65°F 18°C | 1.8 in 45 mm | — | 14 |
| September | 84°F 29°C | 58°F 14°C | 0.8 in 19 mm | — | 15 |
| October | 72°F 22°C | 51°F 11°C | 1.4 in 37 mm | — | 14 |
| November | 54°F 12°C | 37°F 3°C | 1.6 in 39 mm | 7.8 in197 mm | 10 |
| December | 38°F 3°C | 22°F -6°C | 1.5 in 38 mm | 7.9 in202 mm | 7 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 8 | 0 |
| March | 13 | 4 |
| April | 5 | 7 |
| May | 10 | 2 |
| June | 10 | 2 |
| July | 7 | 8 |
| August | 14 | 2 |
| September | 15 | 1 |
| October | 14 | 1 |
| November | 10 | 2 |
| December | 7 | 1 |