Solar radiation in Chicago Weather Service Forecast Office Solar radiation 15 days
In the following list by days you can know the forecast of the predicted solar radiation. To know the data hour by hour, click on the day that interests you. If you have a solar panel system, these data will be useful to predict the energy it will produce.
The unit of measurement for solar radiation is expressed in W/m2 (Watts per square meter).
Solar radiation
Today, April 2
Total: 2408 wh/m2Hours07:006 w/m2
08:0050 w/m2
09:0099 w/m2
10:00143 w/m2
11:00176 w/m2
12:00196 w/m2
13:00281 w/m2
14:00338 w/m2
15:00390 w/m2
16:00377 w/m2
17:00232 w/m2
18:00115 w/m2
19:005 w/m2
Tomorrow, April 3
Total: 5306 wh/m2Hours07:0026 w/m2
08:00202 w/m2
09:00397 w/m2
10:00567 w/m2
11:00678 w/m2
12:00712 w/m2
13:00658 w/m2
14:00630 w/m2
15:00556 w/m2
16:00443 w/m2
17:00294 w/m2
18:00136 w/m2
19:007 w/m2
Friday, April 4
Total: 4164 wh/m2Hours07:0028 w/m2
08:00196 w/m2
09:00374 w/m2
10:00516 w/m2
11:00589 w/m2
12:00590 w/m2
13:00518 w/m2
14:00458 w/m2
15:00369 w/m2
16:00262 w/m2
17:00177 w/m2
18:0082 w/m2
19:005 w/m2
Saturday, April 5
Total: 3648 wh/m2Hours07:0015 w/m2
08:00110 w/m2
09:00219 w/m2
10:00322 w/m2
11:00420 w/m2
12:00480 w/m2
13:00508 w/m2
14:00486 w/m2
15:00418 w/m2
16:00334 w/m2
17:00226 w/m2
18:00103 w/m2
19:007 w/m2
Sunday, April 6
Total: 5100 wh/m2Hours07:0024 w/m2
08:00157 w/m2
09:00309 w/m2
10:00451 w/m2
11:00568 w/m2
12:00655 w/m2
13:00689 w/m2
14:00667 w/m2
15:00595 w/m2
16:00484 w/m2
17:00331 w/m2
18:00158 w/m2
19:0012 w/m2
Monday, April 7
Total: 5799 wh/m2Hours07:0035 w/m2
08:00204 w/m2
09:00385 w/m2
10:00545 w/m2
11:00670 w/m2
12:00752 w/m2
13:00777 w/m2
14:00740 w/m2
15:00648 w/m2
16:00515 w/m2
17:00349 w/m2
18:00166 w/m2
19:0013 w/m2
Tuesday, April 8
Total: 6307 wh/m2Hours07:0043 w/m2
08:00229 w/m2
09:00426 w/m2
10:00597 w/m2
11:00728 w/m2
12:00808 w/m2
13:00831 w/m2
14:00795 w/m2
15:00703 w/m2
16:00562 w/m2
17:00384 w/m2
18:00185 w/m2
19:0016 w/m2
Wednesday, April 9
Total: 6262 wh/m2Hours07:0045 w/m2
08:00225 w/m2
09:00417 w/m2
10:00586 w/m2
11:00717 w/m2
12:00800 w/m2
13:00826 w/m2
14:00791 w/m2
15:00702 w/m2
16:00563 w/m2
17:00385 w/m2
18:00187 w/m2
19:0018 w/m2
Thursday, April 10
Total: 6048 wh/m2Hours07:0047 w/m2
08:00222 w/m2
09:00407 w/m2
10:00572 w/m2
11:00694 w/m2
12:00772 w/m2
13:00797 w/m2
14:00762 w/m2
15:00672 w/m2
16:00537 w/m2
17:00367 w/m2
18:00180 w/m2
19:0019 w/m2
Friday, April 11
Total: 6218 wh/m2Hours07:0053 w/m2
08:00234 w/m2
09:00423 w/m2
10:00587 w/m2
11:00712 w/m2
12:00787 w/m2
13:00808 w/m2
14:00776 w/m2
15:00689 w/m2
16:00555 w/m2
17:00383 w/m2
18:00190 w/m2
19:0021 w/m2
Saturday, April 12
Total: 6355 wh/m2Hours07:0057 w/m2
08:00243 w/m2
09:00435 w/m2
10:00602 w/m2
11:00729 w/m2
12:00804 w/m2
13:00825 w/m2
14:00791 w/m2
15:00701 w/m2
16:00563 w/m2
17:00388 w/m2
18:00194 w/m2
19:0023 w/m2
Sunday, April 13
Total: 2361 wh/m2Hours07:0059 w/m2
08:00218 w/m2
09:00317 w/m2
10:00295 w/m2
11:00310 w/m2
12:00267 w/m2
13:00212 w/m2
14:00203 w/m2
15:00180 w/m2
16:00144 w/m2
17:00100 w/m2
18:0050 w/m2
19:006 w/m2
Monday, April 14
Total: 6476 wh/m2Hours07:0049 w/m2
08:00240 w/m2
09:00450 w/m2
10:00623 w/m2
11:00752 w/m2
12:00829 w/m2
13:00850 w/m2
14:00814 w/m2
15:00721 w/m2
16:00581 w/m2
17:00395 w/m2
18:00165 w/m2
19:007 w/m2
Tuesday, April 15
Total: 6545 wh/m2Hours07:0069 w/m2
08:00254 w/m2
09:00438 w/m2
10:00596 w/m2
11:00742 w/m2
12:00829 w/m2
13:00853 w/m2
14:00816 w/m2
15:00724 w/m2
16:00583 w/m2
17:00405 w/m2
18:00207 w/m2
19:0029 w/m2
Wednesday, April 16
Total: 3865 wh/m2Hours07:0057 w/m2
08:00169 w/m2
09:00220 w/m2
10:00158 w/m2
11:00418 w/m2
12:00640 w/m2
13:00761 w/m2
14:00627 w/m2
15:00400 w/m2
16:00146 w/m2
17:00151 w/m2
18:00100 w/m2
19:0018 w/m2
To carry out the solar radiation forecast, the angle of incidence of solar radiation is taken into account, which depends, among others, on the declination, latitude, inclination and hour angle. The weather forecast is also taken into account, since, for example, on a cloudy day we would only have diffuse radiation, much less than direct radiation.