Current weather conditions and 15 day weather forecast for Arlington Heights, 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.
| 13 May 2026 Wednesday 12.2 ° C / 54°F ![]() Clear |
Feels Like : 11.4 ° C / 52.5°F Humidity : % 72 Pressure : 1011 mb Wind Speed : 14.8 kmph / 9.2 miles from WNW ![]() Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 13 May 2026 Wednesday | Overcast |
7.6 ° C (45.8°F) |
11.9 ° C (53.4°F) |
10.9 ° C (51.6°F) |
% 63 | 0% | 5.8 | Sunrise:05:33 AM Sunset: 08:04 PM |
Moonrise:03:27 AM Moonset: 04:34 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
5.4 ° C (41.7°F) |
18.6 ° C (65.5°F) |
11.6 ° C (52.9°F) |
% 56 | 0% | 7.5 | Sunrise:05:32 AM Sunset: 08:05 PM |
Moonrise:03:51 AM Moonset: 05:51 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Moderate rain |
10.7 ° C (51.2°F) |
20.8 ° C (69.4°F) |
15.4 ° C (59.7°F) |
% 75 | 81% | 0.4 | Sunrise:05:31 AM Sunset: 08:06 PM |
Moonrise:04:18 AM Moonset: 07:13 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Sunny |
14.9 ° C (58.9°F) |
29 ° C (84.3°F) |
21.8 ° C (71.3°F) |
% 55 | 0% | 6 | 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 |
17.2 ° C (62.9°F) |
28.4 ° C (83.2°F) |
21.3 ° C (70.3°F) |
% 73 | 76% | 5 | Sunrise:05:29 AM Sunset: 08:08 PM |
Moonrise:05:37 AM Moonset: 09:55 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
21.1 ° C (69.9°F) |
29.5 ° C (85.1°F) |
24.1 ° C (75.3°F) |
% 69 | 0% | 6 | Sunrise:05:29 AM Sunset: 08:09 PM |
Moonrise:06:33 AM Moonset: 11:04 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
13.7 ° C (56.6°F) |
21.1 ° C (70°F) |
18.8 ° C (65.9°F) |
% 86 | 88% | 4 | Sunrise:05:28 AM Sunset: 08:10 PM |
Moonrise:07:42 AM Moonset: 11:59 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
9 ° C (48.3°F) |
19.7 ° C (67.5°F) |
13.6 ° C (56.6°F) |
% 59 | 0% | 4 | Sunrise:05:27 AM Sunset: 08:11 PM |
Moonrise:08:59 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
10.6 ° C (51.1°F) |
19.5 ° C (67°F) |
15.3 ° C (59.5°F) |
% 63 | 81% | 4 | Sunrise:05:26 AM Sunset: 08:12 PM |
Moonrise:10:17 AM Moonset: 12:41 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
8.8 ° C (47.9°F) |
11.2 ° C (52.1°F) |
12.2 ° C (53.9°F) |
% 77 | 88% | 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 | Sunny |
6.7 ° C (44.1°F) |
20.9 ° C (69.6°F) |
14.2 ° C (57.6°F) |
% 56 | 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 | Patchy rain nearby |
13.8 ° C (56.8°F) |
20.7 ° C (69.3°F) |
16.3 ° C (61.4°F) |
% 71 | 65% | 4 | Sunrise:05:24 AM Sunset: 08:15 PM |
Moonrise:01:52 PM Moonset: 02:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Patchy rain nearby |
16.9 ° C (62.5°F) |
30.5 ° C (86.9°F) |
23.6 ° C (74.5°F) |
% 80 | 82% | 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 |
17.3 ° C (63.1°F) |
29.5 ° C (85.1°F) |
23.1 ° C (73.5°F) |
% 83 | 64% | 5 | Sunrise:05:22 AM Sunset: 08:16 PM |
Moonrise:04:02 PM Moonset: 02:41 AM Moon Phase ( Waxing Gibbous ) |
|