Current weather conditions and 15 day weather forecast for Riverton, 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 21.7 ° C / 71.1°F ![]() Sunny |
Feels Like : 21.7 ° C / 71.1°F Humidity : % 32 Pressure : 1017 mb Wind Speed : 28.8 kmph / 17.9 miles from NNW ![]() Visibility : 16 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 | Sunny |
12.5 ° C (54.5°F) |
24.2 ° C (75.6°F) |
18.5 ° C (65.3°F) |
% 41 | 0% | 7.6 | Sunrise:05:45 AM Sunset: 08:05 PM |
Moonrise:03:35 AM Moonset: 04:38 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
7.5 ° C (45.5°F) |
20.1 ° C (68.2°F) |
13.8 ° C (56.9°F) |
% 60 | 0% | 8.2 | Sunrise:05:44 AM Sunset: 08:05 PM |
Moonrise:04:00 AM Moonset: 05:54 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Moderate rain |
12.7 ° C (54.8°F) |
27.6 ° C (81.7°F) |
19 ° C (66.2°F) |
% 68 | 84% | 0.2 | Sunrise:05:43 AM Sunset: 08:06 PM |
Moonrise:04:29 AM Moonset: 07:13 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Heavy rain |
17.8 ° C (64°F) |
23.6 ° C (74.4°F) |
19.9 ° C (67.9°F) |
% 87 | 86% | 4 | Sunrise:05:43 AM Sunset: 08:07 PM |
Moonrise:05:06 AM Moonset: 08:34 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
17.4 ° C (63.3°F) |
27.4 ° C (81.3°F) |
22.4 ° C (72.4°F) |
% 77 | 67% | 5 | Sunrise:05:42 AM Sunset: 08:08 PM |
Moonrise:05:52 AM Moonset: 09:52 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
20.7 ° C (69.3°F) |
29.8 ° C (85.6°F) |
24.3 ° C (75.8°F) |
% 74 | 77% | 5 | Sunrise:05:41 AM Sunset: 08:09 PM |
Moonrise:06:49 AM Moonset: 11:01 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Partly Cloudy |
13.3 ° C (56°F) |
20 ° C (68°F) |
17.1 ° C (62.7°F) |
% 72 | 0% | 5 | Sunrise:05:40 AM Sunset: 08:10 PM |
Moonrise:07:58 AM Moonset: 11:57 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Patchy rain nearby |
11.2 ° C (52.2°F) |
16.1 ° C (61.1°F) |
14.4 ° C (58°F) |
% 82 | 78% | 3 | Sunrise:05:39 AM Sunset: 08:11 PM |
Moonrise:09:14 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Sunny |
9.1 ° C (48.4°F) |
21.6 ° C (70.8°F) |
15.2 ° C (59.4°F) |
% 70 | 0% | 5 | Sunrise:05:38 AM Sunset: 08:12 PM |
Moonrise:10:30 AM Moonset: 12:41 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Sunny |
12.5 ° C (54.6°F) |
23.9 ° C (75°F) |
17.9 ° C (64.2°F) |
% 65 | 0% | 5 | Sunrise:05:38 AM Sunset: 08:13 PM |
Moonrise:11:44 AM Moonset: 01:15 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
14.7 ° C (58.4°F) |
27.8 ° C (82.1°F) |
21.1 ° C (70°F) |
% 71 | 0% | 6 | Sunrise:05:37 AM Sunset: 08:13 PM |
Moonrise:12:54 PM Moonset: 01:43 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Patchy rain nearby |
21.3 ° C (70.3°F) |
27.9 ° C (82.2°F) |
23.7 ° C (74.7°F) |
% 80 | 87% | 5 | Sunrise:05:36 AM Sunset: 08:14 PM |
Moonrise:01:59 PM Moonset: 02:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Moderate rain |
19.9 ° C (67.8°F) |
27.4 ° C (81.3°F) |
23.4 ° C (74.2°F) |
% 86 | 89% | 5 | Sunrise:05:36 AM Sunset: 08:15 PM |
Moonrise:03:03 PM Moonset: 02:28 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday | Patchy rain nearby |
20.9 ° C (69.7°F) |
23.9 ° C (75.1°F) |
22.2 ° C (71.9°F) |
% 90 | 86% | 5 | Sunrise:05:35 AM Sunset: 08:16 PM |
Moonrise:04:06 PM Moonset: 02:50 AM Moon Phase ( Waxing Gibbous ) |
|