Alpha Weather Forecast 15 Days, Weather in Alpha Today

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2. Illinois
3. Henry County
4. Alpha Map
5. Weather in Alpha for 15 days

Current weather conditions and 15 day weather forecast for Alpha, 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 Alpha

22 December 2025 Monday 3.2 ° C / 37.8°F Overcast

Feels Like : -1.5 ° C / 29.2°F Humidity : % 68 Pressure : 1022 mb Wind Speed : 22.7 kmph / 14.1 miles from S Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100

15 day weather forecast for Alpha, IL, USA

Weather Forecast for next 15 Days for Alpha 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 Alpha, 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	Partly Cloudy	-0.6 ° C (30.9°F)	6 ° C (42.8°F)	1.9 ° C (35.4°F)	% 74	0%	0.2	Sunrise:07:25 AM Sunset: 04:36 PM	Moonrise:09:38 AM Moonset: 07:02 PM Moon Phase ( Waxing Crescent )
23 December 2025 Tuesday	Fog	-0.5 ° C (31.1°F)	0.8 ° C (33.4°F)	0.6 ° C (33.1°F)	% 98	0%	0.3	Sunrise:07:25 AM Sunset: 04:37 PM	Moonrise:10:07 AM Moonset: 08:09 PM Moon Phase ( Waxing Crescent )
24 December 2025 Wednesday	Overcast	-0.5 ° C (31.1°F)	2.6 ° C (36.7°F)	2.7 ° C (36.8°F)	% 97	0%	0.1	Sunrise:07:26 AM Sunset: 04:38 PM	Moonrise:10:33 AM Moonset: 09:17 PM Moon Phase ( Waxing Crescent )
25 December 2025 Thursday	Patchy rain nearby	9.5 ° C (49.2°F)	18 ° C (64.5°F)	13.6 ° C (56.4°F)	% 91	81%	0.2	Sunrise:07:26 AM Sunset: 04:38 PM	Moonrise:10:56 AM Moonset: 10:24 PM Moon Phase ( Waxing Crescent )
26 December 2025 Friday	Overcast	-0.3 ° C (31.4°F)	4.2 ° C (39.6°F)	4.5 ° C (40.1°F)	% 72	0%	0	Sunrise:07:26 AM Sunset: 04:39 PM	Moonrise:11:18 AM Moonset: 11:33 PM Moon Phase ( Waxing Crescent )
27 December 2025 Saturday	Sunny	-1.9 ° C (28.6°F)	5.5 ° C (41.8°F)	1.4 ° C (34.6°F)	% 71	0%	2	Sunrise:07:27 AM Sunset: 04:40 PM	Moonrise:11:39 AM Moonset: No moonset Moon Phase ( First Quarter )
28 December 2025 Sunday	Sunny	1.6 ° C (34.9°F)	7 ° C (44.6°F)	3.5 ° C (38.4°F)	% 70	0%	2	Sunrise:07:27 AM Sunset: 04:40 PM	Moonrise:12:02 PM Moonset: 12:43 AM Moon Phase ( Waxing Gibbous )
29 December 2025 Monday	Moderate rain	2.8 ° C (37°F)	5.1 ° C (41.1°F)	4.8 ° C (40.6°F)	% 80	84%	1	Sunrise:07:27 AM Sunset: 04:41 PM	Moonrise:12:29 PM Moonset: 01:57 AM Moon Phase ( Waxing Gibbous )
30 December 2025 Tuesday	Patchy rain nearby	2.7 ° C (36.8°F)	6.1 ° C (42.9°F)	5.5 ° C (41.9°F)	% 88	80%	2	Sunrise:07:27 AM Sunset: 04:42 PM	Moonrise:01:02 PM Moonset: 03:15 AM Moon Phase ( Waxing Gibbous )
31 December 2025 Wednesday	Overcast	1.3 ° C (34.3°F)	5.5 ° C (41.8°F)	2.7 ° C (36.8°F)	% 78	0%	1	Sunrise:07:28 AM Sunset: 04:43 PM	Moonrise:01:44 PM Moonset: 04:35 AM Moon Phase ( Waxing Gibbous )
01 January 2026 Thursday	Sunny	0.1 ° C (32.1°F)	7.3 ° C (45.2°F)	3.4 ° C (38.1°F)	% 80	0%	2	Sunrise:07:28 AM Sunset: 04:44 PM	Moonrise:02:39 PM Moonset: 05:54 AM Moon Phase ( Waxing Gibbous )
02 January 2026 Friday	Patchy rain nearby	4.5 ° C (40.1°F)	12.8 ° C (55°F)	9 ° C (48.2°F)	% 84	71%	2	Sunrise:07:28 AM Sunset: 04:44 PM	Moonrise:03:46 PM Moonset: 07:04 AM Moon Phase ( Waxing Gibbous )
03 January 2026 Saturday	Blowing snow	-7.7 ° C (18.1°F)	8.7 ° C (47.7°F)	2.5 ° C (36.6°F)	% 73	0%	1	Sunrise:07:28 AM Sunset: 04:45 PM	Moonrise:05:03 PM Moonset: 08:02 AM Moon Phase ( Full Moon )
04 January 2026 Sunday	Blowing snow	-10.6 ° C (12.9°F)	-8.3 ° C (17.1°F)	-9.4 ° C (15.1°F)	% 56	0%	1	Sunrise:07:28 AM Sunset: 04:46 PM	Moonrise:06:21 PM Moonset: 08:46 AM Moon Phase ( Waning Gibbous )

Alpha Weather forecasts are usually fully updated every 4 hours.

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