Current weather conditions and 15 day weather forecast for Buffalo Grove, 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.
| 15 May 2026 Friday 10.1 ° C / 50.2°F ![]() Partly cloudy |
Feels Like : 7.7 ° C / 45.9°F Humidity : % 66 Pressure : 1014 mb Wind Speed : 18 kmph / 11.2 miles from S ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 May 2026 Friday | Patchy rain nearby |
9.9 ° C (49.8°F) |
26.7 ° C (80.1°F) |
17 ° C (62.6°F) |
% 59 | 72% | 8.1 | Sunrise:05:31 AM Sunset: 08:06 PM |
Moonrise:04:18 AM Moonset: 07:13 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Moderate rain |
16.3 ° C (61.3°F) |
27.1 ° C (80.8°F) |
21 ° C (69.8°F) |
% 83 | 88% | 7.9 | Sunrise:05:30 AM Sunset: 08:07 PM |
Moonrise:04:52 AM Moonset: 08:35 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
17.6 ° C (63.7°F) |
26.9 ° C (80.5°F) |
21.9 ° C (71.4°F) |
% 79 | 81% | 7.8 | Sunrise:05:29 AM Sunset: 08:08 PM |
Moonrise:05:36 AM Moonset: 09:55 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Moderate rain |
19.3 ° C (66.7°F) |
25.3 ° C (77.5°F) |
21.7 ° C (71°F) |
% 75 | 87% | 7.4 | Sunrise:05:28 AM Sunset: 08:09 PM |
Moonrise:06:32 AM Moonset: 11:04 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
13.3 ° C (55.9°F) |
20.8 ° C (69.4°F) |
18.1 ° C (64.6°F) |
% 78 | 81% | 0.4 | Sunrise:05:27 AM Sunset: 08:10 PM |
Moonrise:07:42 AM Moonset: 12:00 AM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
9.9 ° C (49.8°F) |
17.9 ° C (64.3°F) |
13.8 ° C (56.8°F) |
% 54 | 0% | 4 | Sunrise:05:26 AM Sunset: 08:11 PM |
Moonrise:08:59 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
8.8 ° C (47.8°F) |
11.4 ° C (52.5°F) |
10.7 ° C (51.3°F) |
% 89 | 81% | 3 | Sunrise:05:26 AM Sunset: 08:12 PM |
Moonrise:10:17 AM Moonset: 12:42 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
8.3 ° C (47°F) |
15.9 ° C (60.6°F) |
12 ° C (53.7°F) |
% 68 | 0% | 3 | Sunrise:05:25 AM Sunset: 08:13 PM |
Moonrise:11:33 AM Moonset: 01:14 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Partly Cloudy |
8.2 ° C (46.7°F) |
14.4 ° C (57.8°F) |
11.2 ° C (52.1°F) |
% 67 | 0% | 4 | Sunrise:05:24 AM Sunset: 08:14 PM |
Moonrise:12:44 PM Moonset: 01:40 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Sunny |
6.9 ° C (44.5°F) |
19.5 ° C (67.1°F) |
13.7 ° C (56.7°F) |
% 58 | 0% | 4 | Sunrise:05:23 AM Sunset: 08:15 PM |
Moonrise:01:52 PM Moonset: 02:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Partly Cloudy |
13.8 ° C (56.8°F) |
25 ° C (77.1°F) |
18.6 ° C (65.4°F) |
% 66 | 0% | 5 | Sunrise:05:23 AM Sunset: 08:16 PM |
Moonrise:02:57 PM Moonset: 02:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday | Patchy rain nearby |
19 ° C (66.1°F) |
25.7 ° C (78.3°F) |
22.1 ° C (71.8°F) |
% 83 | 77% | 5 | Sunrise:05:22 AM Sunset: 08:17 PM |
Moonrise:04:02 PM Moonset: 02:41 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 May 2026 Wednesday | Patchy rain nearby |
21.1 ° C (69.9°F) |
23.9 ° C (75.1°F) |
22.6 ° C (72.7°F) |
% 92 | 83% | 5 | Sunrise:05:21 AM Sunset: 08:17 PM |
Moonrise:05:06 PM Moonset: 03:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 May 2026 Thursday | Patchy rain nearby |
20 ° C (68°F) |
25.8 ° C (78.5°F) |
22.9 ° C (73.3°F) |
% 88 | 85% | 5 | Sunrise:05:21 AM Sunset: 08:18 PM |
Moonrise:06:11 PM Moonset: 03:24 AM Moon Phase ( Waxing Gibbous ) |
|