WxSim & NWS Forecast Comparison
National Weather Service (NW), Actual Observed (Act), WxSim Generated (WS)
Morning Forecasts
| Updated: 06-14-26 at 5:00 am |
| Goal |
Forecast Day |
Day +1 |
Day +2 |
Day +3 |
| ± 2.0° F |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
| Date |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| 06-14-26 |
57 |
|
90 |
87 |
|
64 |
57 |
|
83 |
90 |
|
56 |
58 |
|
80 |
90 |
|
60 |
58 |
|
79 |
87 |
|
63 |
| 06-13-26 |
59 |
88.0 |
90 |
94 |
66.9 |
66 |
58 |
|
90 |
89 |
|
64 |
58 |
|
81 |
89 |
|
59 |
58 |
|
81 |
91 |
|
60 |
| 06-12-26 |
61 |
95.5 |
90 |
97 |
68.5 |
66 |
59 |
88.0 |
88 |
92 |
66.9 |
65 |
58 |
|
88 |
89 |
|
66 |
58 |
|
82 |
90 |
|
60 |
| 06-11-26 |
63 |
93.9 |
89 |
97 |
67.1 |
68 |
61 |
95.5 |
90 |
96 |
68.5 |
66 |
59 |
88.0 |
88 |
91 |
66.9 |
65 |
58 |
|
85 |
89 |
|
62 |
| 06-10-26 |
53 |
76.1 |
84 |
92 |
61.3 |
67 |
62 |
93.9 |
90 |
98 |
67.1 |
68 |
61 |
95.5 |
90 |
93 |
68.5 |
67 |
59 |
88.0 |
88 |
91 |
66.9 |
64 |
| 06-09-26 |
57 |
77.2 |
83 |
78 |
49.3 |
59 |
53 |
76.1 |
78 |
91 |
61.3 |
64 |
62 |
93.9 |
88 |
96 |
67.1 |
68 |
60 |
95.5 |
85 |
94 |
68.5 |
64 |
| 06-08-26 |
49 |
75.7 |
79 |
75 |
55.2 |
56 |
57 |
77.2 |
83 |
78 |
49.3 |
62 |
53 |
76.1 |
80 |
93 |
61.3 |
65 |
62 |
93.9 |
88 |
96 |
67.1 |
64 |
| Results |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| # Succ |
0 |
|
1 |
0 |
|
3 |
0 |
|
2 |
0 |
|
2 |
0 |
|
1 |
0 |
|
3 |
0 |
|
1 |
0 |
|
0 |
| % Succ |
|
|
16.7 |
|
|
50.0 |
|
|
40.0 |
|
|
40.0 |
|
|
25.0 |
|
|
75.0 |
|
|
33.3 |
|
|
0.0 |
| Ave Error |
27.4 |
|
4.9 |
27.5 |
|
3.4 |
27.7 |
|
3.4 |
28.4 |
|
4.1 |
29.6 |
|
3.8 |
27.3 |
|
2.0 |
32.1 |
|
5.5 |
26.2 |
|
3.5 |
| Net Error |
-27.4 |
|
1.4 |
27.5 |
|
2.3 |
-27.7 |
|
-0.3 |
28.4 |
|
2.4 |
-29.6 |
|
-1.9 |
27.3 |
|
0.3 |
-32.1 |
|
-5.5 |
26.2 |
|
-3.5 |
| Std Dev |
4.8 |
|
1.8 |
1.8 |
|
3.1 |
3.6 |
|
1.8 |
1.9 |
|
1.9 |
0.3 |
|
1.9 |
1.6 |
|
0.0 |
0.0 |
|
0.0 |
0.0 |
|
0.0 |
|
|
|
Mid-Day Forecasts
| Updated: 06-13-26 at 11:00 am |
| Goal |
Forecast Day |
Day +1 |
Day +2 |
Day +3 |
| ± 2.0° F |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
| Date |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| 06-13-26 |
94 |
|
90 |
58 |
|
66 |
89 |
|
90 |
58 |
|
65 |
89 |
|
81 |
58 |
|
60 |
91 |
|
81 |
58 |
|
60 |
| 06-12-26 |
95 |
95.5 |
93 |
59 |
66.9 |
66 |
92 |
|
87 |
58 |
|
66 |
89 |
|
87 |
58 |
|
62 |
89 |
|
81 |
58 |
|
60 |
| 06-11-26 |
97 |
93.9 |
96 |
61 |
68.5 |
69 |
96 |
95.5 |
90 |
59 |
66.9 |
66 |
91 |
|
88 |
58 |
|
65 |
89 |
|
86 |
57 |
|
65 |
| 06-10-26 |
92 |
76.1 |
83 |
62 |
67.1 |
66 |
98 |
93.9 |
89 |
61 |
68.5 |
67 |
93 |
95.5 |
88 |
59 |
66.9 |
66 |
91 |
|
87 |
57 |
|
64 |
| 06-09-26 |
78 |
77.2 |
85 |
53 |
61.3 |
62 |
91 |
76.1 |
78 |
62 |
67.1 |
66 |
96 |
93.9 |
89 |
60 |
68.5 |
68 |
94 |
95.5 |
86 |
60 |
66.9 |
66 |
| 06-08-26 |
75 |
75.7 |
82 |
57 |
49.3 |
57 |
78 |
77.2 |
84 |
53 |
61.3 |
62 |
93 |
76.1 |
78 |
62 |
67.1 |
64 |
96 |
93.9 |
88 |
60 |
68.5 |
66 |
| 06-07-26 |
79 |
86.2 |
88 |
49 |
55.2 |
58 |
74 |
75.7 |
79 |
57 |
49.3 |
57 |
78 |
77.2 |
82 |
53 |
61.3 |
63 |
90 |
76.1 |
83 |
60 |
67.1 |
65 |
| Results |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| # Succ |
3 |
|
1 |
0 |
|
4 |
3 |
|
1 |
0 |
|
4 |
1 |
|
1 |
0 |
|
3 |
1 |
|
0 |
0 |
|
1 |
| % Succ |
50.0 |
|
16.7 |
|
|
66.7 |
60.0 |
|
20.0 |
|
|
80.0 |
25.0 |
|
25.0 |
|
|
75.0 |
33.3 |
|
0.0 |
|
|
33.3 |
| Ave Error |
4.7 |
|
4.6 |
7.1 |
|
2.3 |
4.4 |
|
4.5 |
7.3 |
|
2.4 |
5.6 |
|
4.8 |
7.5 |
|
1.6 |
5.8 |
|
7.4 |
7.5 |
|
1.8 |
| Net Error |
1.9 |
|
3.7 |
-4.6 |
|
1.6 |
3.7 |
|
0.3 |
-4.2 |
|
1.0 |
4.3 |
|
-1.4 |
-7.5 |
|
-0.7 |
4.8 |
|
-2.8 |
-7.5 |
|
-1.8 |
| Std Dev |
5.4 |
|
2.2 |
1.0 |
|
2.5 |
5.0 |
|
1.3 |
1.0 |
|
1.0 |
1.5 |
|
1.4 |
0.2 |
|
0.3 |
0.0 |
|
0.0 |
0.0 |
|
0.0 |
|
|
|
Evening Forecasts
| Updated: 06-13-26 at 5:00 pm |
| Goal |
Forecast Day |
Day +1 |
Day +2 |
Day +3 |
| ± 2.0° F |
Low |
High |
Low |
High |
Low |
High |
Low |
High |
| Date |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| 06-13-26 |
92 |
|
66 |
57 |
|
91 |
90 |
|
64 |
58 |
|
80 |
89 |
|
55 |
58 |
|
79 |
90 |
|
61 |
58 |
|
79 |
| 06-12-26 |
95 |
66.9 |
66 |
59 |
95.5 |
87 |
92 |
|
65 |
58 |
|
87 |
89 |
|
62 |
58 |
|
80 |
89 |
|
59 |
58 |
|
79 |
| 06-11-26 |
97 |
68.5 |
71 |
61 |
93.9 |
90 |
94 |
66.9 |
66 |
59 |
95.5 |
87 |
92 |
|
65 |
58 |
|
84 |
89 |
|
62 |
57 |
|
81 |
| 06-10-26 |
92 |
67.1 |
64 |
63 |
76.1 |
89 |
97 |
68.5 |
67 |
61 |
93.9 |
89 |
95 |
66.9 |
67 |
59 |
95.5 |
88 |
90 |
|
65 |
56 |
|
87 |
| 06-09-26 |
78 |
61.3 |
60 |
53 |
77.2 |
81 |
91 |
67.1 |
64 |
62 |
76.1 |
88 |
96 |
68.5 |
66 |
60 |
93.9 |
82 |
93 |
66.9 |
64 |
59 |
95.5 |
87 |
| 06-08-26 |
75 |
49.3 |
55 |
57 |
75.7 |
83 |
78 |
61.3 |
61 |
53 |
77.2 |
75 |
92 |
67.1 |
63 |
62 |
76.1 |
86 |
96 |
68.5 |
68 |
60 |
93.9 |
81 |
| 06-07-26 |
79 |
55.2 |
60 |
49 |
86.2 |
80 |
75 |
49.3 |
58 |
57 |
75.7 |
83 |
77 |
61.3 |
64 |
54 |
77.2 |
79 |
93 |
67.1 |
63 |
64 |
76.1 |
88 |
| Results |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| # Succ |
0 |
|
2 |
0 |
|
0 |
0 |
|
3 |
0 |
|
0 |
0 |
|
1 |
0 |
|
1 |
0 |
|
1 |
0 |
|
0 |
| % Succ |
|
|
33.3 |
|
|
0.0 |
|
|
60.0 |
|
|
0.0 |
|
|
25.0 |
|
|
25.0 |
|
|
33.3 |
|
|
0.0 |
| Ave Error |
24.6 |
|
3.1 |
27.1 |
|
7.1 |
24.4 |
|
2.9 |
25.3 |
|
7.0 |
24.1 |
|
2.4 |
26.9 |
|
7.8 |
26.5 |
|
2.5 |
27.5 |
|
11.1 |
| Net Error |
24.6 |
|
1.3 |
-27.1 |
|
0.9 |
24.4 |
|
0.6 |
-25.3 |
|
0.7 |
24.1 |
|
-0.9 |
-26.9 |
|
-1.9 |
26.5 |
|
-2.5 |
-27.5 |
|
-3.2 |
| Std Dev |
3.9 |
|
1.6 |
8.1 |
|
3.1 |
2.2 |
|
1.1 |
7.9 |
|
2.5 |
2.0 |
|
1.1 |
4.8 |
|
0.1 |
0.0 |
|
0.0 |
0.0 |
|
0.0 |
|
|
|
Nighttime Forecasts
| Updated: 06-13-26 at 11:00 pm |
| Goal |
Forecast Day |
Day +1 |
Day +2 |
Day +3 |
| ± 2.0° F |
Low |
High |
Low |
High |
Low |
High |
Low |
High |
| Date |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| 06-13-26 |
57 |
|
64 |
90 |
|
90 |
58 |
|
63 |
89 |
|
81 |
58 |
|
55 |
90 |
|
79 |
58 |
|
61 |
86 |
|
77 |
| 06-12-26 |
59 |
66.9 |
66 |
92 |
95.5 |
89 |
58 |
|
65 |
89 |
|
88 |
58 |
|
65 |
89 |
|
81 |
58 |
|
58 |
91 |
|
81 |
| 06-11-26 |
61 |
68.5 |
65 |
94 |
93.9 |
89 |
59 |
66.9 |
67 |
92 |
95.5 |
88 |
58 |
|
65 |
89 |
|
88 |
57 |
|
64 |
88 |
|
81 |
| 06-10-26 |
63 |
67.1 |
64 |
97 |
76.1 |
90 |
61 |
68.5 |
68 |
95 |
93.9 |
89 |
59 |
66.9 |
66 |
90 |
95.5 |
88 |
56 |
|
64 |
86 |
|
87 |
| 06-09-26 |
53 |
61.3 |
59 |
91 |
77.2 |
81 |
62 |
67.1 |
64 |
96 |
76.1 |
89 |
60 |
68.5 |
67 |
93 |
93.9 |
87 |
59 |
66.9 |
66 |
92 |
95.5 |
86 |
| 06-08-26 |
57 |
49.3 |
51 |
78 |
75.7 |
81 |
53 |
61.3 |
60 |
92 |
77.2 |
77 |
62 |
67.1 |
65 |
96 |
76.1 |
88 |
60 |
68.5 |
67 |
92 |
93.9 |
82 |
| 06-07-26 |
49 |
55.2 |
62 |
75 |
86.2 |
81 |
57 |
49.3 |
58 |
77 |
75.7 |
83 |
54 |
61.3 |
63 |
93 |
77.2 |
77 |
64 |
67.1 |
65 |
95 |
76.1 |
89 |
| Results |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
NW |
Act |
WS |
| # Succ |
0 |
|
2 |
1 |
|
0 |
0 |
|
3 |
2 |
|
1 |
0 |
|
3 |
1 |
|
1 |
0 |
|
2 |
1 |
|
0 |
| % Succ |
|
|
33.3 |
16.7 |
|
0.0 |
|
|
60.0 |
40.0 |
|
20.0 |
|
|
75.0 |
25.0 |
|
25.0 |
|
|
66.7 |
33.3 |
|
0.0 |
| Ave Error |
7.0 |
|
3.1 |
8.6 |
|
6.6 |
7.3 |
|
2.7 |
8.1 |
|
6.6 |
7.2 |
|
1.6 |
10.5 |
|
6.6 |
6.5 |
|
1.5 |
8.1 |
|
11.4 |
| Net Error |
-4.4 |
|
-0.2 |
3.7 |
|
1.1 |
-4.2 |
|
0.8 |
6.7 |
|
1.5 |
-7.2 |
|
-0.7 |
7.3 |
|
-0.7 |
-6.5 |
|
-1.5 |
4.5 |
|
-2.8 |
| Std Dev |
1.4 |
|
1.1 |
7.3 |
|
3.3 |
1.0 |
|
1.6 |
6.5 |
|
3.0 |
0.4 |
|
0.3 |
2.5 |
|
0.4 |
0.0 |
|
0.0 |
0.0 |
|
0.0 |
|
|
|