Potomac Weather Forecast 15 Days, Weather in Potomac Today
Current weather conditions and 15 day weather forecast for Potomac, 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 Potomac
| 28 March 2026 Saturday 0.3 ° C / 32.5°F  Clear |
Feels Like : -4.1 ° C / 24.6°F Humidity : % 77 Pressure : 1036 mb Wind Speed : 15.5 kmph / 9.6 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Potomac, IL, USA
Weather Forecast for next 15 Days for Potomac 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 Potomac, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 28 March 2026 Saturday | Sunny |
-0.5 ° C (31.1°F) |
11.5 ° C (52.7°F) |
3.7 ° C (38.7°F) |
% 69 | 0% | 1.4 | Sunrise:06:42 AM Sunset: 07:12 PM |
Moonrise:02:44 PM Moonset: 04:35 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday |  Overcast |
2.6 ° C (36.7°F) |
11.2 ° C (52.2°F) |
7.8 ° C (46°F) |
% 65 | 0% | 0.8 | Sunrise:06:40 AM Sunset: 07:13 PM |
Moonrise:03:54 PM Moonset: 05:04 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Overcast |
9.4 ° C (48.9°F) |
19.3 ° C (66.7°F) |
13.5 ° C (56.4°F) |
% 81 | 0% | 1.2 | Sunrise:06:38 AM Sunset: 07:14 PM |
Moonrise:05:02 PM Moonset: 05:28 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday |  Moderate rain |
15.8 ° C (60.4°F) |
25.8 ° C (78.5°F) |
20.3 ° C (68.5°F) |
% 74 | 83% | 1.2 | Sunrise:06:37 AM Sunset: 07:15 PM |
Moonrise:06:07 PM Moonset: 05:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday |  Heavy rain |
4.5 ° C (40.1°F) |
10.9 ° C (51.7°F) |
9.1 ° C (48.4°F) |
% 71 | 86% | 0 | Sunrise:06:35 AM Sunset: 07:16 PM |
Moonrise:07:12 PM Moonset: 06:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Moderate rain |
1.5 ° C (34.6°F) |
7.7 ° C (45.8°F) |
4.5 ° C (40.1°F) |
% 70 | 87% | 1 | Sunrise:06:33 AM Sunset: 07:17 PM |
Moonrise:08:16 PM Moonset: 06:32 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday |  Patchy rain nearby |
6.6 ° C (43.8°F) |
19.2 ° C (66.5°F) |
13.4 ° C (56.1°F) |
% 90 | 88% | 3 | Sunrise:06:32 AM Sunset: 07:18 PM |
Moonrise:09:20 PM Moonset: 06:56 AM Moon Phase ( Waning Gibbous ) |
|
| 04 April 2026 Saturday |  Partly Cloudy |
6.4 ° C (43.6°F) |
14.6 ° C (58.3°F) |
10.2 ° C (50.4°F) |
% 66 | 0% | 4 | Sunrise:06:30 AM Sunset: 07:19 PM |
Moonrise:10:24 PM Moonset: 07:22 AM Moon Phase ( Waning Gibbous ) |
|
| 05 April 2026 Sunday | Patchy rain nearby |
2.6 ° C (36.7°F) |
8.3 ° C (47°F) |
5.4 ° C (41.7°F) |
% 64 | 0% | 2 | Sunrise:06:29 AM Sunset: 07:20 PM |
Moonrise:11:28 PM Moonset: 07:52 AM Moon Phase ( Waning Gibbous ) |
|
| 06 April 2026 Monday | Partly Cloudy |
1.2 ° C (34.2°F) |
12 ° C (53.5°F) |
6.4 ° C (43.6°F) |
% 63 | 0% | 3 | Sunrise:06:27 AM Sunset: 07:22 PM |
Moonrise:No moonrise Moonset: 08:28 AM Moon Phase ( Waning Gibbous ) |
|
| 07 April 2026 Tuesday | Moderate rain |
7.5 ° C (45.5°F) |
9.4 ° C (49°F) |
8.7 ° C (47.6°F) |
% 90 | 85% | 2 | Sunrise:06:25 AM Sunset: 07:23 PM |
Moonrise:12:27 AM Moonset: 09:11 AM Moon Phase ( Waning Gibbous ) |
|
| 08 April 2026 Wednesday | Patchy rain nearby |
7.8 ° C (46°F) |
16.3 ° C (61.4°F) |
12.1 ° C (53.8°F) |
% 67 | 80% | 3 | Sunrise:06:24 AM Sunset: 07:24 PM |
Moonrise:01:22 AM Moonset: 10:02 AM Moon Phase ( Waning Gibbous ) |
|
| 09 April 2026 Thursday | Patchy rain nearby |
4.9 ° C (40.9°F) |
15.4 ° C (59.7°F) |
10.8 ° C (51.4°F) |
% 71 | 89% | 3 | Sunrise:06:22 AM Sunset: 07:25 PM |
Moonrise:02:09 AM Moonset: 11:00 AM Moon Phase ( Waning Gibbous ) |
|
| 10 April 2026 Friday | Moderate rain |
1.8 ° C (35.2°F) |
8.9 ° C (48°F) |
4.9 ° C (40.9°F) |
% 75 | 88% | 1 | Sunrise:06:21 AM Sunset: 07:26 PM |
Moonrise:02:50 AM Moonset: 12:03 PM Moon Phase ( Last Quarter ) |
|
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