Weather

The Weather-Guesser

Are you an Adventure Master, or a weather man, or both? For the really sharp AM, weather is a fantastic way to add depth to the players’ experience. Below, you’ll find resources for both weather and temperature.

Weather Chart by Region and Season

Either roll percentile dice or a d100 if you want a random outcome, or use the chart to give you ideas on what to choose.

Ocean

Spring

01-30 clear
31-40 fog
41-50 rain (01-20 light, 21-70 moderate, 71-100 heavy)
51-80 wind (01-40 light, 41-80 moderate, 81-100 high)
81-100 storm (01-40 rain, 41-50 hail, 51-80 thunder, 81-100 lightning)

Summer

01-40 clear
41-50 fog
51-60 rain (01-20 light, 21-60 moderate, 61-100 heavy)
61-90 wind (01-60 light, 61-90 moderate, 91-100 high)
91-95 storm (01-70 rain, 70-90 lightning, 91-100 hail)
96-98 thunderstorm
99-100 hurricane

Fall

01-25 clear
26-30 fog
31-45 rain (01-30 light, 31-60 moderate, 61-100 heavy)
46-80 wind (01-20 light, 21-60 moderate, 61-100 high)
81-90 snow (01-80 light, 81-100 moderate)
91-95 storm (01-50 rain, 51-80 snow, 81-100 hail)
96-100 hurricane

Winter

01-20 clear
21-25 fog
26-30 rain (01-20 light, 21-60 moderate, 61-100 heavy)
31-40 wind (01-25 light, 26-55 moderate, 56-100 high)
41-50 snow (01-70 light, 71-90 moderate, 91-100 heavy)
51-100 storm (01-60 rain, 61-75 snow, 76-100 ice)

Coastal

Spring

01-15 clear
16-25 fog
26-35 rain (01-20 light, 21-60 moderate, 61-100 heavy)
36-40 high tide
41-80 wind (01-40 light, 41-80 moderate, 81-100 high)
81-95 storm (01-40 rain, 41-50 hail, 51-80 thunder, 81-100 lightning)
96-100 hurricane

Summer

01-20 clear
21-35 fog
36-45 rain (01-30 light, 31-80 moderate, 81-100 heavy)
46-50 high tide
51-75 wind (01-60 light, 62-90 moderate, 92-100 high)
76-85 storm (01-70 rain, 71-90 lightning, 91-100 hail)
86-98 thunderstorm
99-100 hurricane

Fall

01-10 clear
11-30 fog
31-60 rain (01-30 light, 31-60 moderate, 61-100 heavy)
61-65 high tide
66-85 wind (01-20 light, 21-60 moderate, 61-100 high)
86-90 snow (01-80 light, 81-96 moderate, 96-100 heavy)
91-100 storm (01-50 rain, 51-80 snow, 81-100 hail)

Winter

01-05 clear
06-25 fog
26-65 rain (01-20 light, 21-60 moderate, 61-100 heavy)
66-70 high tide
71-85 wind (01-25 light, 26-55 moderate, 56-100 high)
86-90 snow (01-20 light, 21-70 moderate, 71-100 heavy)
91-100 storm (01-75 snow, 76-100 ice)

Plains

Spring

01-25 clear
26-30 fog
31-35 frost
36-50 rain (01-20 light, 21-60 moderate, 61-100 heavy)
51-75 wind (01-30 light, 31-60 moderate, 61-100 high)
76-90 storm (01-25 rain, 26-35 hail, 36-70 thunder, 70-100 lightning)
91-100 tornado

Summer

01-60 clear
61-65 fog
66-70 rain(01-40 light, 41-90 moderate, 91-100 heavy)
71-80 wind (01-60 light, 61-100 moderate)
81-90 storm (01-70 rain, 71-100 hail)
91-95 thunderstorm
96-100 tornado

Fall

01-20 clear
21-25 fog
26-50 rain (01-65 moderate, 66-100 heavy)
51-85 wind (01-30 light, 31-80 moderate, 81-100 high)
86-90 snow (01-70 light, 71-90 moderate, 91-100 heavy)
91-100 storm (01-40 rain, 41-80 snow, 81-100 hail)

Winter

01-20 clear
21-25 fog
26-35 rain (01-30 light, 31-60 moderate, 61-100 heavy)
36-75 wind (0-35 light, 36-80 moderate, 81-100 high)
76-95 snow (01-20 light, 21-70 moderate, 71-100 heavy)
96-100 storm (01-70 snow, 71-100 ice)

Mountains

Spring

01-25 clear
26-35 fog
36-50 rain (01-20 light, 21-60 moderate, 61-100 heavy)
51-85 wind (01-20 light, 21-70 moderate, 71-100 high)
86-100 storm (01-30 rain, 31-45 hail, 46-70 thunder, 71-80 lightning, 81-100 snow)

Summer

01-45 clear
46-60 rain (01-60 light, 61-90 moderate, 91-100 heavy)
61-75 wind (01-30 light, 31-70 moderate, 71-100 high)
76-85 storm (01-80 rain, 81-100 hail)
86-100 thunderstorm

Fall

01-25 clear
26-30 fog
31-55 rain (01-20 light, 21-40 moderate, 41-100 heavy)
56-75 wind (01-20 light, 21-40 moderate, 41-100 high)
76-85 snow (01-40 light, 41-80 moderate, 81-100 heavy)
86-100 storm (01-40 rain, 41-80 snow, 81-100 hail)

Winter

01-20 clear
21-25 rain (01-20 light, 21-60 moderate, 61-100 heavy)
26-45 wind (01-20 light, 21-50 moderate, 51-100 high)
46-75 snow (01-20 light, 21-60 moderate, 61-100 heavy)
76-100 storm (01-60 snow, 61-100 ice)

Semi-Arctic

Spring

01-40 clear
41-50 rain(01-20 light, 21-60 moderate, 61-100 heavy)
51-96 wind (01-25 light, 36-70 moderate, 71-100 high)
76-97 storm (01-20 rain, 21-60 snow, 61-80 hail, 81-90 thunder, 91-100 lightning)
98-100 twister

Summer

01-50 clear
51-65 rain(01-20 light, 21-70 moderate, 71-100 heavy)
66-75 wind (01-40 light, 41-80 moderate, 81-100 high)
76-90 storm (01-50 rain, 51-75 snow, 76-100 hail)
91-98 thunderstorm
99-100 twister

Fall

01-30 clear
31-60 rain (01-30 light, 31-70 moderate, 71-100 heavy)
61-75 wind (01-20 light, 21-60 moderate, 61-100 high)
76-90 snow (01-40 light, 41-80 moderate, 81-100 heavy)
91-100 storm (01-40 rain, 41-80 snow, 81-100 hail)

Winter

01-25 clear
26-50 rain(01-20 light, 21-60 moderate, 61-100 heavy)
51-60 wind (01-30 light, 31-70 moderate, 71-100 high)
61-75 snow(01-20 light, 21-75 moderate, 76-100 heavy)
76-100 storm (01-75 snow, 76-100 ice)

Desert
Spring

01-50 clear
51-55 rain (01-10 light, 11-60 moderate, 61-100 heavy)
56-75 wind (01-30 light, 31-70 moderate, 71-100 high)
76-85 storm (01-40 rain, 41-45 hail, 46-60 thunder, 61-80 lightning, 81-100 wind)
86-98 thunderstorm
99-100 twister

Summer

01-70 clear
71-75 rain (01-90 trace, 91-100 light)
76-85 wind (01-40 light, 41-70 moderate, 71-100 high)
86-90 storm (01-40 rain, 41-100 wind)
91-98 thunderstorm
99-100 twister

Fall

01-45 clear
46-60 rain (10-40 trace, 41-60 light, 61-90 moderate, 91-100 heavy)
61-80 wind (01-30 light, 31-70 moderate, 71-100 high)
81-85 snow (01-15 trace, 16-30 light, 31-60 moderate, 61-100 heavy)
85-90 storm (01-30 rain, 31-40 snow, 41-100 wind)
91-100 thunderstorm

Winter

01-45 clear
46-55 rain (01-20 light, 21-60 moderate, 61-100 heavy)
56-65 wind (01-40 light, 41-70 moderate, 71-100 high)
66-85 snow (01-40 light, 41-80 moderate, 81-100 heavy)
86-100 storm (01-60 snow, 61-100 wind)

Jungle

Spring

01-50 clear
51-55 mist
56-75 rain (01-20 light, 21-60 moderate, 61-100 heavy)
76-85 wind (01-30 light, 31-60 moderate, 61-100 high)
86-98 storm (01-50 rain, 51-55 hail, 56-75 thunder, 76-100 lightning)
99-100 hurricane

Summer

01-50 clear
51-55 mist
56-75 rain (01-20 light, 21-60 moderate, 61-100 heavy)
76-85 wind (01-70 light, 71-100 moderate)
86-98 storm (01-90 rain, 91-100 hail)
99-100 hurricane

Fall

01-20 clear
21-30 mist
31-80 rain (01-80 moderate, 81-100 heavy)
81-90 storm (01-70 rain, 71-85 lightning, 86-100 thunder)
91-100 wind (01-25 light, 26-70 moderate, 71-100 high)

Winter

01-20 clear
21-30 mist
26-80 rain(01-25 light, 26-55 moderate, 56-100 heavy)
81-90 storm (01-60 rain, 61-75 lighting, 76-100 thunder)
91-100 wind (01-35 light, 36-75 moderate, 76-100 high)

Random Temperature Chart

To find an average daytime temperature, roll percentile dice until you get a number in the range for the region and season. Or, just pick a temperature inside the range. Nights can be 10 to 30 degrees colder. Feel free to adjust the random temperature roll by a few degrees as you see fit.

Extreme temperature changes can be introduced just by deciding what they will be. Please note that the temperature should fit the general weather conditions (See Talanian Weather Chart above) and make sense. For example, snow, rather than rain will be falling at 20 below.

Region Season Temperature Range (in degrees F)

Ocean Spring 25 to 65 Summer 35 to 80 Fall 30 to 70 Winter 20 to 55

Coastal Spring 35 to 70 Summer 50 to 85 Fall 40 to 60 Winter 20 to 50

Plains Spring 30 to 65 Summer 40 to 90 Fall 45 to 65 Winter 15 to 55

Mountains Spring 35 to 60 Summer 55 to 70 Fall 45 to 60 Winter 15 to 35

Desert Spring 30 to 80 Summer 35 to 100 Fall 30 to 70 Winter 20 to 45

Jungle Spring 55 to 80 Summer 75 to 95 Fall 50 to 75 Winter 35 to 65

Semi-Arctic Spring 0 to 20 Summer 10 to 25 Fall 5 to 10 Winter -10 to 10 (choose + or -)

Arctic Spring -31 to -13 Summer 30 to 35 Fall -30 to -15 Winter -40 to -31