Crystal Lake Weather Forecast 15 Days, Weather in Crystal Lake Today
Current weather conditions and 15 day weather forecast for Crystal Lake, Iowa, 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 Crystal Lake
| 12 May 2026 Tuesday 23.2 ° C / 73.8°F  Sunny |
Feels Like : 23.5 ° C / 74.4°F Humidity : % 31 Pressure : 1011 mb Wind Speed : 31.7 kmph / 19.7 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Crystal Lake, IA, USA
Weather Forecast for next 15 Days for Crystal Lake 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 Crystal Lake, Iowa 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 May 2026 Tuesday |  Patchy rain nearby |
13.6 ° C (56.5°F) |
26.7 ° C (80.1°F) |
19.5 ° C (67.1°F) |
% 37 | 81% | 6.9 | Sunrise:05:54 AM Sunset: 08:29 PM |
Moonrise:03:29 AM Moonset: 03:45 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Sunny |
9 ° C (48.2°F) |
21.9 ° C (71.3°F) |
15.4 ° C (59.7°F) |
% 48 | 0% | 7.6 | Sunrise:05:53 AM Sunset: 08:30 PM |
Moonrise:03:49 AM Moonset: 04:59 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Patchy rain nearby |
10.9 ° C (51.6°F) |
22.8 ° C (73°F) |
16.8 ° C (62.3°F) |
% 54 | 86% | 7.7 | Sunrise:05:52 AM Sunset: 08:31 PM |
Moonrise:04:12 AM Moonset: 06:17 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
14 ° C (57.3°F) |
27.7 ° C (81.9°F) |
20.5 ° C (68.9°F) |
% 54 | 76% | 0.2 | Sunrise:05:51 AM Sunset: 08:32 PM |
Moonrise:04:38 AM Moonset: 07:40 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday |  Moderate rain |
15.4 ° C (59.7°F) |
28.1 ° C (82.5°F) |
21 ° C (69.8°F) |
% 44 | 88% | 5 | Sunrise:05:50 AM Sunset: 08:33 PM |
Moonrise:05:12 AM Moonset: 09:04 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday |  Heavy rain |
16.1 ° C (61°F) |
22.8 ° C (73°F) |
20.1 ° C (68.1°F) |
% 87 | 86% | 5 | Sunrise:05:49 AM Sunset: 08:34 PM |
Moonrise:05:55 AM Moonset: 10:24 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
14.3 ° C (57.8°F) |
27.8 ° C (82°F) |
21.5 ° C (70.8°F) |
% 74 | 83% | 5 | Sunrise:05:48 AM Sunset: 08:35 PM |
Moonrise:06:51 AM Moonset: 11:34 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday |  Cloudy |
11.6 ° C (52.8°F) |
19.3 ° C (66.8°F) |
15.1 ° C (59.2°F) |
% 69 | 0% | 4 | Sunrise:05:47 AM Sunset: 08:36 PM |
Moonrise:08:00 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday |  Partly Cloudy |
13.3 ° C (55.9°F) |
26.9 ° C (80.4°F) |
19.4 ° C (66.9°F) |
% 71 | 0% | 5 | Sunrise:05:46 AM Sunset: 08:37 PM |
Moonrise:09:18 AM Moonset: 12:27 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Sunny |
13.5 ° C (56.3°F) |
23.2 ° C (73.8°F) |
18.3 ° C (64.9°F) |
% 55 | 0% | 5 | Sunrise:05:45 AM Sunset: 08:38 PM |
Moonrise:10:37 AM Moonset: 01:09 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Heavy rain |
13.7 ° C (56.7°F) |
16.3 ° C (61.3°F) |
15.5 ° C (59.8°F) |
% 88 | 86% | 4 | Sunrise:05:44 AM Sunset: 08:39 PM |
Moonrise:11:54 AM Moonset: 01:40 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Patchy rain nearby |
13.5 ° C (56.3°F) |
20.9 ° C (69.5°F) |
16.7 ° C (62°F) |
% 79 | 79% | 4 | Sunrise:05:43 AM Sunset: 08:40 PM |
Moonrise:01:07 PM Moonset: 02:05 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Sunny |
10.8 ° C (51.4°F) |
23.6 ° C (74.5°F) |
17 ° C (62.6°F) |
% 59 | 0% | 5 | Sunrise:05:43 AM Sunset: 08:41 PM |
Moonrise:02:15 PM Moonset: 02:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Sunny |
13.4 ° C (56°F) |
24.1 ° C (75.4°F) |
18.5 ° C (65.4°F) |
% 71 | 0% | 5 | Sunrise:05:42 AM Sunset: 08:42 PM |
Moonrise:03:22 PM Moonset: 02:45 AM Moon Phase ( Waxing Gibbous ) |
|
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