Forsyth, Illinois Climate
United States
Pop. 3,584 Elev. 212 m / 696 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Forsyth sees July highs of 87°F (31°C) and cold January lows of 17°F (-8°C). Humidity pushes the summer feels-like temperature to 101°F (38°C), while wind chill can drive winter lows to 9°F (-13°C). Expect around 48 rainy days annually (30.3 in / 769 mm total), with snow on 6 days and 31 in (777 mm) of annual accumulation. The city averages 126 sunny days per year and around 35 thunderstorm days.
| Temperature | 87°F (30°C) high | 17°F (-8°C) low |
| Feels like | 101°F (38°C) high | 9°F (-13°C) low |
| Rain | 48 days | 30.3 in (769 mm) /yr |
| Snow | 6 days | 30.6 in (777 mm) /yr |
| Sky | 126 sunny | 35 stormy |
| Wind | 2.8 mph (1.2 m/s) avg |
Looking for a place with a climate like Forsyth? Explore and filter 150,000+ cities worldwide.
Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
51
Jan 59
Feb 54
Mar 67
Apr 60
May 58
Jun 64
Jul 47
Aug 33
Sep 44
Oct 50
Nov 69
Dec Humidity (%)
68
Jan 65
Feb 55
Mar 61
Apr 62
May 72
Jun 78
Jul 71
Aug 58
Sep 60
Oct 66
Nov 79
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 8 mi Decatur Airport (DEC)
Ski resort 136 mi
National park 105 mi Shakamak State Park
Mountain peak
(5,125 ft) 417 mi Little Haw Knob
Hospital 5 mi Decatur Memorial Hospital
Hiking trail 8 mi River Trail
Interested in Forsyth?
Hotels
Flights
Real Estate
Insurance
Connectivity
Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 17°F -8°C | 0.4 in 9 mm | 8.1 in205 mm | 14 |
| February | 40°F 4°C | 24°F -5°C | 0.4 in 10 mm | 5.8 in147 mm | 10 |
| March | 62°F 17°C | 39°F 4°C | 3.0 in 76 mm | 1.4 in35 mm | 11 |
| April | 67°F 19°C | 46°F 8°C | 5.1 in 129 mm | — | 4 |
| May | 74°F 23°C | 54°F 12°C | 3.6 in 91 mm | — | 10 |
| June | 84°F 29°C | 67°F 19°C | 5.1 in 131 mm | — | 9 |
| July | 87°F 30°C | 71°F 22°C | 5.3 in 135 mm | — | 3 |
| August | 83°F 28°C | 64°F 18°C | 1.1 in 28 mm | — | 16 |
| September | 83°F 28°C | 58°F 14°C | 1.1 in 28 mm | — | 18 |
| October | 71°F 22°C | 50°F 10°C | 2.7 in 69 mm | — | 14 |
| November | 54°F 12°C | 37°F 3°C | 1.5 in 39 mm | 7.5 in192 mm | 11 |
| December | 39°F 4°C | 23°F -5°C | 1.0 in 26 mm | 7.8 in198 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 0 |
| February | 10 | 0 |
| March | 11 | 4 |
| April | 4 | 6 |
| May | 10 | 3 |
| June | 9 | 5 |
| July | 3 | 10 |
| August | 16 | 2 |
| September | 18 | 0 |
| October | 14 | 2 |
| November | 11 | 2 |
| December | 6 | 1 |