Chatham, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 63°F 17°C	Observed at: Chatham, IL	Elevation: 698 ft | 213 m
	Last Updated: July 29, 6:00 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 63°F | 17°C
	Pressure: 29.28 in | 991.5 mb	Dewpoint: 58°F | 14°C
	Humidity: 85%	Wind: NE 4 mph | NE 6 kph
	Feels Like: 64°F | 18°C	Visibility: 31.8 mi | 51.2 km
	Lat/Long: 39.6761 | -89.7044	Sunrise: 5:55 AM   Sunset: 8:14 PM

7 Day Graphical Forecast

Valid: 6:00 AM 7/29/2026

Today Clear 88 |63 °F 31 |17 °C 0% Chance Precipitation Thursday Overcast 89 |62 °F 32 |17 °C 0% Chance Precipitation Friday Showers 79 |64 °F 26 |18 °C 70% Chance Precipitation Saturday Showers 76 |64 °F 24 |18 °C 70% Chance Precipitation Sunday Light Drizzle 81 |60 °F 27 |15 °C 18% Chance Precipitation Monday Clear 81 |61 °F 27 |16 °C 21% Chance Precipitation Tuesday Clear 83 |60 °F 28 |16 °C 15% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:00 AM 7/29/2026

6 AM Clear 63 °F 0% Chance Precipitation

7 AM Clear 64 °F 0% Chance Precipitation

8 AM Clear 68 °F 0% Chance Precipitation

9 AM Clear 72 °F 0% Chance Precipitation

10 AM Clear 76 °F 0% Chance Precipitation

11 AM Clear 79 °F 0% Chance Precipitation

12 PM Clear 82 °F 0% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Chatham, IL - (Fahrenheit & Celsius) Valid: 6:00 AM 7/29/2026 Today Clear with a high near 88°F [31°C]. NE wind to around 9 mph [14 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 58°F [14°C] with humidity of 91%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.55. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tonight Clear with a low around 63°F [17°C]. NE wind to around 9 mph [14 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 89°F [32°C]. E wind to around 6 mph [10 kph], with gusts to near 16 mph [25 kph]. Dewpoint near 58°F [14°C] with humidity of 76%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.55. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 62°F [17°C]. E wind to around 6 mph [10 kph], with gusts to near 16 mph [25 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Showers with a high near 79°F [26°C]. SSE wind to around 16 mph [26 kph], with gusts to near 27 mph [44 kph]. Dewpoint near 58°F [14°C] with humidity of 96%. Pressure around 29.28 in [991.5 mb]. UV Index: 6.25. Chance of precipitation 70% with QPF of 0.65 in [16.5 mm]. Friday Night Showers with a low around 64°F [18°C]. SSE wind to around 16 mph [26 kph], with gusts to near 27 mph [44 kph]. Chance of precipitation 70% with QPF of 0.65 in [16.5 mm]. Saturday Showers with a high near 76°F [24°C]. NE wind to around 17 mph [27 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 58°F [14°C] with humidity of 97%. Pressure around 29.28 in [991.5 mb]. UV Index: 6.7. Chance of precipitation 70% with QPF of 0.41 in [10.3 mm]. Saturday Night Showers with a low around 64°F [18°C]. NE wind to around 17 mph [27 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 70% with QPF of 0.41 in [10.3 mm]. Sunday Light Drizzle with a high near 81°F [27°C]. NNE wind to around 12 mph [19 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 58°F [14°C] with humidity of 97%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.35. Chance of precipitation 18% with QPF of 0.01 in [0.3 mm]. Sunday Night Light Drizzle with a low around 60°F [15°C]. NNE wind to around 12 mph [19 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 18% with QPF of 0.01 in [0.3 mm]. Monday Clear with a high near 81°F [27°C]. ENE wind to around 6 mph [10 kph], with gusts to near 7 mph [12 kph]. Dewpoint near 58°F [14°C] with humidity of 94%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.45. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 61°F [16°C]. ENE wind to around 6 mph [10 kph], with gusts to near 7 mph [12 kph]. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 83°F [28°C]. SE wind to around 7 mph [12 kph], with gusts to near 11 mph [17 kph]. Dewpoint near 58°F [14°C] with humidity of 93%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.4. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 60°F [16°C]. SE wind to around 7 mph [12 kph], with gusts to near 11 mph [17 kph]. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Chatham, IL

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 16.5 mm | 0.65 in

Friday Night: 16.5 mm | 0.65 in

Saturday: 10.3 mm | 0.41 in

Saturday Night: 10.3 mm | 0.41 in

Sunday: 0.3 mm | 0.01 in

Sunday Night: 0.3 mm | 0.01 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Chatham, IL

Today: NE @ 14 kph | 9 mph

Tonight: NE @ 14 kph | 9 mph

Thursday: E @ 10 kph | 6 mph

Thursday Night: E @ 10 kph | 6 mph

Friday: SSE @ 26 kph | 16 mph

Friday Night: SSE @ 26 kph | 16 mph

Saturday: NE @ 27 kph | 17 mph

Saturday Night: NE @ 27 kph | 17 mph

Sunday: NNE @ 19 kph | 12 mph

Sunday Night: NNE @ 19 kph | 12 mph

Monday: ENE @ 10 kph | 6 mph

Monday Night: ENE @ 10 kph | 6 mph

Tuesday: SE @ 12 kph | 7 mph

Tuesday Night: SE @ 12 kph | 7 mph

7 Day and Night - Maximum Humidity Forecast for Chatham, IL

Today: 91 %

Tonight: 91 %

Thursday: 76 %

Thursday Night: 76 %

Friday: 96 %

Friday Night: 96 %

Saturday: 97 %

Saturday Night: 97 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 94 %

Monday Night: 94 %

Tuesday: 93 %

Tuesday Night: 93 %

7 Day and Night - Snowfall Totals Forecast for Chatham, IL

Today: 0.0 cm | 0.00 in

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

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