National Weather Service State College, PA
Weather Impact Matrix for Northumberland County Decision Support


Valid: 09/30/2025 08 AM - 09/30/2025 08 PM EDT

Tue
09/30
8 AM
Tue
09/30
9 AM
Tue
09/30
10 AM
Tue
09/30
11 AM
Tue
09/30
12 PM
Tue
09/30
1 PM
Tue
09/30
2 PM
Tue
09/30
3 PM
Tue
09/30
4 PM
Tue
09/30
5 PM
Tue
09/30
6 PM
Tue
09/30
7 PM
Tue
09/30
8 PM
Temperature57°F61°F67°F71°F74°F77°F79°F79°F80°F79°F77°F75°F70°F
Heat
Index
57°F61°F67°F71°F74°F78°F79°F80°F80°F79°F78°F75°F70°F
Wind
Speed
2 mph2 mph2 mph3 mph5 mph5 mph6 mph6 mph8 mph8 mph8 mph8 mph6 mph
Wind
Direction
NNNENNNNNNNNNN
Wind
Gust
5 mph6 mph9 mph10 mph11 mph12 mph13 mph14 mph16 mph17 mph17 mph18 mph18 mph
Chance of
Precipitation
0%0%0%0%0%0%0%0%0%0%0%0%0%
WeatherNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNone
Sky
Cover
88%85%82%79%77%74%71%57%54%34%47%48%34%
Relative
Humidity
93%83%65%57%50%45%41%40%39%40%43%46%56%
Rainfall0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in0.0 in

Issued: Monday September 29, 2025 08:13 PM EDT


Threat LevelNoneLimitedElevatedSignificantExtreme
Temperature≤80 °F80 to 89 °F90 to 94 °F95 to 99 °F≥100 °F
Heat Index≤80 °F80 to 89 °F90 to 94 °F95 to 99 °F≥100 °F
Wind Speed≤10 mph10 to 14 mph15 to 24 mph25 to 34 mph≥35 mph
Wind Gust≤15 mph15 to 24 mph25 to 34 mph35 to 44 mph≥45 mph
Chance of Precipitation≤15 %15 to 24 %25 to 54 %55 to 74 %≥75 %
Relative Humidity≥15 %15 to 21 %20 to 31 %30 to 41 %≤40 %
Rainfall≤0.1 in0.1 to 0.24 in0.25 to 0.49 in0.5 to 0.99 in≥1.0 in
Note - Grey color indicates no thresholds assigned