Now

23°

0.03 in

6 mph

07:00

23°

0.15 in

5 mph

08:00

23°

0.20 in

4 mph

09:00

24°

38%

5 mph

10:00

24°

0.06 in

7 mph

11:00

27°

53%

8 mph

12:00

27°

25%

8 mph

13:00

33°

11 mph

14:00

33°

12 mph

15:00

34°

10 mph

16:00

35°

9 mph

17:00

34°

10 mph

18:00

33°

8 mph

19:00

31°

7 mph

20:00

30°

5 mph

21:00

29°

4 mph

22:00

28°

5 mph

23:00

28°

7 mph

00:00

28°

8 mph

01:00

27°

8 mph

02:00

27°

8 mph

03:00

27°

9 mph

04:00

27°

10 mph

05:00

28°

10%

11 mph

10-day forecast

Updated 6:32 AM

Sat · Today · 15 Aug Sunny

35° 23° 0.48 in

Sun · Tomorrow · 16 Aug Sunny

32° 24° 0.03 in

Monday · 17 Aug Sunny

30° 21° 8%

Tuesday · 18 Aug Sunny

32° 20° 8%

Wednesday · 19 Aug Partly cloudy

29° 19° 0.13 in

Thursday · 20 Aug Showers

25° 19° 0.16 in

Friday · 21 Aug Showers

22° 17° 0.14 in

Saturday · 22 Aug Sunny

27° 15° 13%

Sunday · 23 Aug Sunny

29° 17° 7%

Monday · 24 Aug Sunny

31° 18° 7%

Details & indices

Wind

6 mph SW

Gusts 13 mph

Humidity

96%

Dew point 22°

Pressure

30.00 inHg

Rising

UV index

8 — Very high

High today

Air Quality

Good

AQI 20 · US EPA

Allergy

None detected

—

Visibility

6 mi

Clear view

Allergy — Chatham

🌿 Conditions right now

View all →

Birch

None

Grass

None

Oak

None

Alder

None

Hazel

None

Mugwort

None

Ragweed

None

Sun & moon

Sunrise6:11 AM

Sunset7:55 PM

Length of day13h 44m

Moonrise9:27 AM

Moonset9:21 PM

Moon phase🌒 Waxing Crescent · 9%

Next full moonAug 27 Sturgeon Moon

Latitude39.6762°N

Longitude-89.7045°E

Water temps nearby

View all →

No beaches within 50 miles

🌤️No rain expected in the next 90 minutes

Now+30+60+90 min

Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast

Laundry day

Poor

Line-drying weather

Grilling

Fair

Fire up the grill

Running

Poor

Lace up outside

Patio

Fair

Dinner outdoors

Nearby places in {{REGION}}

🌤️

Data sources · Saturday, August 15

Where the Chatham forecast comes from

This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 39.6762°N, -89.7045°.

NBM + global weather models

Updated: 6:32 AM

Weather in Chatham

Over the next 10 days Chatham tops out around 35° (Saturday) and dips to 15° on the coolest night (Saturday). Roughly 0.95 in of rain falls over the period, with Friday the most likely wet day (87%). Expect a blustery spell — gusts near 27 mph on Tuesday. The NWS alert board for this area is currently clear. Right now Chatham is running about 52° warmer than Aurora. Longer view: variable mid-latitude weather in every season.

Chatham, IL · Elev 604 ft · 39.68°N, 89.70°W · Illinois · Forecast computed for these exact coordinates

Chatham, IL Weather (62629)

Weather map — Chatham

Today · Sat 8/15

Overnight · Sat 8/15

Tomorrow · Sun 8/16

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner