Halfmoon Lake, IL 14 Day Weather

Feedback E-mail the Weather

Quick Weather Clicks

Halfmoon Lake, IL Weather - 14-Day Weather Forecast

Current Conditions

Settings
Halfmoon Lake IL Weather - Clear - 78°F
Clear
78°F
Updated 11:34 am
Feels Like 74°F
Humidity 36%
Wind W 7 mph
Barometer  30 in
Dew Point 49°F
Halfmoon Lake IL Weather - Clear - 26°C
Clear
26°C
Updated 11:34 am
Feels Like 23°C
Humidity 36%
Wind W 11 km/h
Barometer  101.6 kPa
Dew Point 10°C
Halfmoon Lake, IL Weather and Current Conditionshalfmoon lake il weather forecast

Halfmoon Lake, IL Weather Forecast

Halfmoon Lake Illinois WeatherHalfmoon Lake, Illinois Weather Weather Forecast
14 Day API Halfmoon Lake Weather Forecast. Note: Our 7 day Halfmoon Lake weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Halfmoon Lake, IL Weather Forecast Dated: 1134 AM Wed Oct 07 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Wednesday, October 7, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-07 - Morning - Sunny
67°F 20°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-07 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-07 - Evening - Sunny
77°F 25°C
Sunny
Warm and summery near 89°F 32°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the WSW to the NNW at 9 mph 14 km/h.

Thursday, October 8, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-08 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-08 - Afternoon - Sunny
85°F 30°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-08 - Evening - Sunny
72°F 22°C
Sunny
Balmy with temperatures reaching 85°F 30°C, sunny throughout the day, with lower humidity and steady pressure.

Friday, October 9, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-09 - Morning - Sunny
71°F 21°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-09 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-09 - Evening - Sunny
78°F 26°C
Sunny
Sizzling hot with 91°F 33°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the S at 10 mph 15 km/h.

Saturday, October 10, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-10 - Morning - Overcast
70°F 21°C
Overcast
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-10 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Halfmoon Lake Weather - 2026-10-10 - Evening - Drizzle
61°F 16°C
Drizzle
Mild temperatures up to 77°F 25°C, drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure. Winds moving from the S to the NE at 14 mph 21 km/h. Gusts up to 28 mph 45 km/h.

Sunday, October 11, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-11 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-11 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-11 - Evening - Sunny
77°F 25°C
Sunny
Very warm with a high of 88°F 31°C, sunny throughout the day, with lower humidity and steady pressure.

Monday, October 12, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-12 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-12 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-12 - Evening - Sunny
80°F 26°C
Sunny
Very hot with temperatures reaching 92°F 33°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SW to the SSW at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.

Tuesday, October 13, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-13 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-13 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-13 - Evening - Overcast
69°F 21°C
Overcast
Balmy with temperatures reaching 80°F 27°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the WNW to the SE at 10 mph 16 km/h.

Wednesday, October 14, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-14 - Morning - Partly Cloudy
55°F 13°C
Partly Cloudy
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-14 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-14 - Evening - Sunny
65°F 18°C
Sunny
Enjoyable around 73°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the E to the ESE at 9 mph 15 km/h. Gusts up to 20 mph 31 km/h.

Thursday, October 15, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-15 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-15 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-15 - Evening - Sunny
81°F 27°C
Sunny
Hot temperatures near 90°F 32°C, sunny throughout the day, with increasing humidity and barometric pressure falling. Winds out of the S at 16 mph 26 km/h. Gusts up to 24 mph 39 km/h.

Friday, October 16, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-16 - Morning - Scattered Showers
77°F 25°C
Scattered Showers
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-16 - Afternoon - Scattered Showers
77°F 25°C
Scattered Showers
Early-Evening
Halfmoon Lake Weather - 2026-10-16 - Evening - Overcast
66°F 19°C
Overcast
Mild with a high of 77°F 25°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds moving from the SW to the NW at 13 mph 20 km/h. Gusts up to 23 mph 36 km/h.

Saturday, October 17, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-17 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-17 - Afternoon - Partly Cloudy
67°F 19°C
Partly Cloudy
Early-Evening
Halfmoon Lake Weather - 2026-10-17 - Evening - Sunny
58°F 15°C
Sunny
Comfortable at 67°F 19°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the WNW to the NW at 9 mph 14 km/h.

Sunday, October 18, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-18 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-18 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-18 - Evening - Sunny
54°F 13°C
Sunny
Cool with a high near 65°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the WNW to the ESE at 9 mph 14 km/h.

Monday, October 19, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-19 - Morning - Sunny
50°F 10°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-19 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Halfmoon Lake Weather - 2026-10-19 - Evening - Sunny
56°F 13°C
Sunny
Refreshing around 66°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the WNW to the NNW at 4 mph 6 km/h.

Tuesday, October 20, 2026

Mid-Morning
Halfmoon Lake Weather - 2026-10-20 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Halfmoon Lake Weather - 2026-10-20 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Halfmoon Lake Weather - 2026-10-20 - Evening - Partly Cloudy
61°F 16°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.

Trending Headlines

Halfmoon Lake, IL Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

Halfmoon Lake, IL 7 Day Weather

National Two Day Weather Forecast


E-mail the Halfmoon Lake Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Wed, 7th
Halfmoon Lake IL Weather - Wednesday, Oct 7, 2026 - Sunny
Hi: 89°F 32°C
Lo: 55°F 13°C
Sunrise 07:01 AM
Sunset 06:33 PM
Wind WSW 9 mph14 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 32%
Thu, 8th
Halfmoon Lake IL Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 85°F 30°C
Lo: 55°F 13°C
Sunrise 07:02 AM
Sunset 06:31 PM
Wind E 6 mph10 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 23%
Fri, 9th
Halfmoon Lake IL Weather - Friday, Oct 9, 2026 - Sunny
Hi: 91°F 33°C
Lo: 59°F 15°C
Sunrise 07:03 AM
Sunset 06:30 PM
Wind S 11 mph17 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 0% *
Humidity 27%
Sat, 10th
Halfmoon Lake IL Weather - Saturday, Oct 10, 2026 - Overcast
Hi: 79°F 26°C
Lo: 60°F 15°C
Sunrise 07:04 AM
Sunset 06:28 PM
Wind SSE 11 mph17 km/h
Dew Point 49°F10°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 10% *
Humidity 36%
Sun, 11th
Halfmoon Lake IL Weather - Sunday, Oct 11, 2026 - Sunny
Hi: 89°F 31°C
Lo: 56°F 13°C
Sunrise 07:05 AM
Sunset 06:27 PM
Wind WNW 9 mph14 km/h
Dew Point 52°F11°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 37%
Mon, 12th
Halfmoon Lake IL Weather - Monday, Oct 12, 2026 - Sunny
Hi: 92°F 33°C
Lo: 65°F 18°C
Sunrise 07:06 AM
Sunset 06:26 PM
Wind SW 13 mph21 km/h
Dew Point 50°F10°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 28%
Tue, 13th
Halfmoon Lake IL Weather - Tuesday, Oct 13, 2026 - Cloudy
Hi: 82°F 28°C
Lo: 60°F 15°C
Sunrise 07:07 AM
Sunset 06:24 PM
Wind NW 13 mph22 km/h
Dew Point 60°F16°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 49%
Wed, 14th
Halfmoon Lake IL Weather - Wednesday, Oct 14, 2026 - Sunny
Hi: 75°F 24°C
Lo: 48°F 9°C
Sunrise 07:08 AM
Sunset 06:23 PM
Wind ESE 10 mph16 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 35%
Thu, 15th
Halfmoon Lake IL Weather - Thursday, Oct 15, 2026 - Sunny
Hi: 90°F 32°C
Lo: 55°F 13°C
Sunrise 07:09 AM
Sunset 06:21 PM
Wind SSE 15 mph24 km/h
Dew Point 49°F9°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 31%
Fri, 16th
Halfmoon Lake IL Weather - Friday, Oct 16, 2026 - Overcast
Hi: 82°F 28°C
Lo: 58°F 15°C
Sunrise 07:10 AM
Sunset 06:20 PM
Wind W 19 mph30 km/h
Dew Point 65°F19°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 13% *
Humidity 59%
Sat, 17th
Halfmoon Lake IL Weather - Saturday, Oct 17, 2026 - Overcast
Hi: 68°F 20°C
Lo: 49°F 9°C
Sunrise 07:11 AM
Sunset 06:18 PM
Wind WNW 11 mph18 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 5% *
Humidity 40%
Sun, 18th
Halfmoon Lake IL Weather - Sunday, Oct 18, 2026 - Sunny
Hi: 66°F 19°C
Lo: 44°F 7°C
Sunrise 07:12 AM
Sunset 06:17 PM
Wind WNW 13 mph21 km/h
Dew Point 35°F2°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 38%
Mon, 19th
Halfmoon Lake IL Weather - Monday, Oct 19, 2026 - Sunny
Hi: 67°F 19°C
Lo: 42°F 5°C
Sunrise 07:13 AM
Sunset 06:16 PM
Wind NW 8 mph12 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 42%
Tue, 20th
Halfmoon Lake IL Weather - Tuesday, Oct 20, 2026 - Partly Cloudy
Hi: 72°F 22°C
Lo: 46°F 8°C
Sunrise 07:14 AM
Sunset 06:14 PM
Wind SW 4 mph7 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 8% *
Humidity 35%
* POP = Probability of Precipitation. Data for 12:00 PM.