Bannockburn Weather Forecast 15 Days, Weather in Bannockburn Today

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5. Weather in Bannockburn for 15 days

Current weather conditions and 15 day weather forecast for Bannockburn, Illinois, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Bannockburn

22 December 2025 Monday -0.6 ° C / 30.9°F Overcast

Feels Like : -5.4 ° C / 22.3°F Humidity : % 61 Pressure : 1030 mb Wind Speed : 16.2 kmph / 10.1 miles from SSW Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100

15 day weather forecast for Bannockburn, IL, USA

Weather Forecast for next 15 Days for Bannockburn including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Bannockburn, Illinois state, US. To see the daily forecast, scroll to the table below.

Date	Weather forecast	Low temperature	High temperature	Avg. temperature	Humidity	Chance of rain	UV Index	Sun Position	Moon Position
22 December 2025 Monday	Overcast	-2.1 ° C (28.2°F)	3.8 ° C (38.8°F)	0.9 ° C (33.5°F)	% 75	0%	0.1	Sunrise:07:17 AM Sunset: 04:23 PM	Moonrise:09:30 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent )
23 December 2025 Tuesday	Overcast	0.2 ° C (32.4°F)	3.1 ° C (37.6°F)	1.8 ° C (35.2°F)	% 94	0%	0.3	Sunrise:07:18 AM Sunset: 04:23 PM	Moonrise:10:00 AM Moonset: 07:56 PM Moon Phase ( Waxing Crescent )
24 December 2025 Wednesday	Patchy rain nearby	-0.6 ° C (30.9°F)	3 ° C (37.4°F)	1.1 ° C (33.9°F)	% 97	81%	0.2	Sunrise:07:18 AM Sunset: 04:24 PM	Moonrise:10:24 AM Moonset: 09:04 PM Moon Phase ( Waxing Crescent )
25 December 2025 Thursday	Patchy rain nearby	4.7 ° C (40.4°F)	9.7 ° C (49.5°F)	7.2 ° C (44.9°F)	% 98	89%	0.1	Sunrise:07:19 AM Sunset: 04:24 PM	Moonrise:10:46 AM Moonset: 10:12 PM Moon Phase ( Waxing Crescent )
26 December 2025 Friday	Patchy rain nearby	1 ° C (33.8°F)	5.4 ° C (41.7°F)	6 ° C (42.8°F)	% 76	83%	0	Sunrise:07:19 AM Sunset: 04:25 PM	Moonrise:11:07 AM Moonset: 11:22 PM Moon Phase ( Waxing Crescent )
27 December 2025 Saturday	Partly Cloudy	0.9 ° C (33.7°F)	5.8 ° C (42.4°F)	3.3 ° C (38°F)	% 70	0%	2	Sunrise:07:19 AM Sunset: 04:26 PM	Moonrise:11:28 AM Moonset: No moonset Moon Phase ( First Quarter )
28 December 2025 Sunday	Sunny	-3.9 ° C (25°F)	-0.9 ° C (30.5°F)	-0.5 ° C (31°F)	% 51	0%	2	Sunrise:07:20 AM Sunset: 04:27 PM	Moonrise:11:50 AM Moonset: 12:33 AM Moon Phase ( Waxing Gibbous )
29 December 2025 Monday	Sunny	-5.8 ° C (21.6°F)	-1 ° C (30.1°F)	-3.5 ° C (25.6°F)	% 39	0%	2	Sunrise:07:20 AM Sunset: 04:27 PM	Moonrise:12:16 PM Moonset: 01:48 AM Moon Phase ( Waxing Gibbous )
30 December 2025 Tuesday	Overcast	-0.9 ° C (30.3°F)	5.5 ° C (41.8°F)	2.1 ° C (35.8°F)	% 55	0%	1	Sunrise:07:20 AM Sunset: 04:28 PM	Moonrise:12:48 PM Moonset: 03:06 AM Moon Phase ( Waxing Gibbous )
31 December 2025 Wednesday	Sunny	-0.3 ° C (31.4°F)	3.6 ° C (38.5°F)	1.7 ° C (35°F)	% 65	0%	2	Sunrise:07:20 AM Sunset: 04:29 PM	Moonrise:01:30 PM Moonset: 04:27 AM Moon Phase ( Waxing Gibbous )
01 January 2026 Thursday	Partly Cloudy	4.3 ° C (39.8°F)	9.3 ° C (48.8°F)	7.1 ° C (44.8°F)	% 81	0%	3	Sunrise:07:20 AM Sunset: 04:30 PM	Moonrise:02:23 PM Moonset: 05:47 AM Moon Phase ( Waxing Gibbous )
02 January 2026 Friday	Patchy rain nearby	-1.3 ° C (29.6°F)	14.2 ° C (57.5°F)	5.4 ° C (41.7°F)	% 79	88%	2	Sunrise:07:20 AM Sunset: 04:31 PM	Moonrise:03:31 PM Moonset: 06:57 AM Moon Phase ( Waxing Gibbous )
03 January 2026 Saturday	Partly Cloudy	-3.7 ° C (25.4°F)	1 ° C (33.9°F)	-1.4 ° C (29.5°F)	% 55	0%	2	Sunrise:07:20 AM Sunset: 04:32 PM	Moonrise:04:47 PM Moonset: 07:55 AM Moon Phase ( Full Moon )
04 January 2026 Sunday	Patchy rain nearby	-0.3 ° C (31.4°F)	3.2 ° C (37.7°F)	1.6 ° C (34.9°F)	% 52	81%	1	Sunrise:07:20 AM Sunset: 04:33 PM	Moonrise:06:07 PM Moonset: 08:39 AM Moon Phase ( Waning Gibbous )

Bannockburn Weather forecasts are usually fully updated every 4 hours.

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