National Weather Service State College, PA Weather Impact Matrix for Mifflin County Decision Support Valid: 07/29/2026 08 AM - 07/29/2026 08 PM EDT

Wed 07/29 8 AM Wed 07/29 9 AM Wed 07/29 10 AM Wed 07/29 11 AM Wed 07/29 12 PM Wed 07/29 1 PM Wed 07/29 2 PM Wed 07/29 3 PM Wed 07/29 4 PM Wed 07/29 5 PM Wed 07/29 6 PM Wed 07/29 7 PM Wed 07/29 8 PM Temperature 67°F 69°F 71°F 74°F 76°F 79°F 79°F 79°F 80°F 79°F 78°F 76°F 72°F Heat Index 67°F 69°F 71°F 74°F 76°F 79°F 79°F 79°F 83°F 79°F 78°F 76°F 72°F Wind Speed 4 mph 5 mph 6 mph 8 mph 8 mph 9 mph 9 mph 10 mph 10 mph 10 mph 10 mph 9 mph 8 mph Wind Direction NW NW NW NW NW NW NW NW NW NW NW NW NW Wind Gust 13 mph 14 mph 16 mph 16 mph 17 mph 17 mph 18 mph 19 mph 19 mph 19 mph 19 mph 19 mph 20 mph Chance of Precipitation 2% 3% 4% 5% 6% 7% 8% 11% 14% 17% 15% 13% 11% Weather None None None None None None None None None Rain Thunder Rain Thunder None None Sky Cover 21% 29% 38% 46% 46% 49% 48% 45% 46% 60% 62% 65% 63% Relative Humidity 97% 90% 84% 80% 78% 74% 74% 75% 72% 73% 75% 78% 83% Rainfall 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in Issued: Tuesday July 28, 2026 08:18 PM EDT

Threat Level	None	Limited	Elevated	Significant	Extreme
Temperature	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Heat Index	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Wind Speed	≤10 mph	10 to 14 mph	15 to 24 mph	25 to 34 mph	≥35 mph
Wind Gust	≤15 mph	15 to 24 mph	25 to 34 mph	35 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 in	0.1 to 0.24 in	0.25 to 0.49 in	0.5 to 0.99 in	≥1.0 in

Note -

Grey color indicates no thresholds assigned